Extended GO from the version of 20040601

    embryonic development
          DNA methylation during embryonic development
             maintenance of DNA methylation during embryonic development
             DNA methylation during embryonic hemopoiesis
             DNA methylation during embryonic pattern specification
             DNA methylation during embryonic morphogenesis
          embryonic development (sensu Animalia)
             cellularization (sensu Animalia)
             embryonic cleavage
             embryonic development (sensu Insecta)
                amnioserosa maintenance
                dorsal closure
                   dorsal closure\, amnioserosa morphology change
                      initiation of dorsal closure , amnioserosa morphology change
                   dorsal closure\, spreading of leading edge cells
                      initiation of dorsal closure , spreading of leading edge cells
                   initiation of dorsal closure
                      dorsal closure\, elongation of leading edge cells
                         initiation of dorsal closure , elongation of leading edge cells
                      dorsal closure\, leading edge cell differentiation
                         dorsal closure\, leading edge cell fate commitment
                            dorsal closure\, leading edge cell fate determination
                               initiation of dorsal closure , leading edge cell fate determination
                               dorsal closure , leading edge cell division
                            initiation of dorsal closure , leading edge cell fate commitment
                            dorsal closure , leading edge cell fate specification
                         initiation of dorsal closure , leading edge cell differentiation
                         dorsal closure , leading edge keratinocyte differentiation
                         dorsal closure , leading edge lymphocyte differentiation
                         dorsal closure , leading edge cell development
                         dorsal closure , leading edge adipocyte differentiation
                         dorsal closure , leading edge oenocyte differentiation
                         dorsal closure , leading edge trichome differentiation
                         dorsal closure , leading edge neuron differentiation
                         dorsal closure , leading edge oocyte differentiation
                         dorsal closure , leading edge hemocyte differentiation
                         dorsal closure , leading edge melanocyte differentiation
                         dorsal closure , leading edge heterocyst differentiation
                         dorsal closure , leading edge spermatid nuclear differentiation
                         dorsal closure , leading edge mechanoreceptor differentiation
                         dorsal closure , leading edge myoblast differentiation
                         dorsal closure , leading edge cell fate specification
                         dorsal closure , leading edge osteoblast differentiation
                      regulation of initiation of dorsal closure
                      initiation of dorsal closure , spreading of leading edge cells
                      initiation of dorsal closure , amnioserosa morphology change
                   suture of dorsal opening
                garland cell differentiation
                   garland cell fate commitment
                   garland keratinocyte differentiation
                   garland lymphocyte differentiation
                   garland cell development
                   garland adipocyte differentiation
                   garland oenocyte differentiation
                   garland trichome differentiation
                   garland neuron differentiation
                   garland oocyte differentiation
                   garland hemocyte differentiation
                   garland melanocyte differentiation
                   garland heterocyst differentiation
                   garland spermatid nuclear differentiation
                   garland mechanoreceptor differentiation
                   garland myoblast differentiation
                   garland cell fate specification
                   garland osteoblast differentiation
                germ-band shortening
                head involution
                pseudocleavage (sensu Insecta)
                   pseudocleavage \(sensu Insecta\) , tapping
                   pseudocleavage \(sensu Insecta\) , orientation
                   pseudocleavage \(sensu Insecta\) , wing extension
                   pseudocleavage \(sensu Insecta\) , licking
                embryonic hemopoiesis \(sensu Insecta\)
                embryonic pattern specification \(sensu Insecta\)
                regulation of embryonic development \(sensu Insecta\)
                DNA methylation during embryonic development \(sensu Insecta\)
                embryonic morphogenesis \(sensu Insecta\)
                eye morphogenesis \(sensu Insecta\)
                zygote asymmetric cytokinesis \(sensu Insecta\)
                cellularization \(sensu Insecta\)
                embryonic cuticle biosynthesis \(sensu Insecta\)
                embryonic development \(sensu Insecta\) , tapping
                embryonic development \(sensu Insecta\) , orientation
                embryonic development \(sensu Insecta\) , wing extension
                embryonic development \(sensu Insecta\) , licking
             embryonic development (sensu Vertebrata)
                embryonic development (sensu Mammalia)
                   blastocyst development
                      blastocyst formation
                         inner cell mass cell differentiation
                            inner cell mass cell fate commitment
                               inner cell mass cell fate determination
                               inner cell mass cell fate specification
                            inner cell mass cellular morphogenesis
                               inner cell mass cellular morphogenesis during differentiation
                               inner cell mass cellular morphogenesis during vegetative growth
                               inner cell mass cellular morphogenesis during conjugation
                            inner cell mass keratinocyte differentiation
                            inner cell mass lymphocyte differentiation
                            inner cell mass cell development
                            inner cell mass adipocyte differentiation
                            inner cell mass oenocyte differentiation
                            inner cell mass trichome differentiation
                            inner cell mass neuron differentiation
                            inner cell mass oocyte differentiation
                            inner cell mass hemocyte differentiation
                            inner cell mass melanocyte differentiation
                            inner cell mass heterocyst differentiation
                            inner cell mass spermatid nuclear differentiation
                            inner cell mass mechanoreceptor differentiation
                            inner cell mass myoblast differentiation
                            inner cell mass cell fate specification
                            inner cell mass osteoblast differentiation
                         trophectoderm cell differentiation
                            trophectoderm cell fate commitment
                               trophectoderm cell fate determination
                               trophectoderm cell fate specification
                            trophectoderm cellular morphogenesis
                               trophectoderm cellular morphogenesis during differentiation
                               trophectoderm cellular morphogenesis during vegetative growth
                               trophectoderm cellular morphogenesis during conjugation
                            trophectoderm keratinocyte differentiation
                            trophectoderm lymphocyte differentiation
                            trophectoderm cell development
                            trophectoderm adipocyte differentiation
                            trophectoderm oenocyte differentiation
                            trophectoderm trichome differentiation
                            trophectoderm neuron differentiation
                            trophectoderm oocyte differentiation
                            trophectoderm hemocyte differentiation
                            trophectoderm melanocyte differentiation
                            trophectoderm heterocyst differentiation
                            trophectoderm spermatid nuclear differentiation
                            trophectoderm mechanoreceptor differentiation
                            trophectoderm myoblast differentiation
                            trophectoderm cell fate specification
                            trophectoderm osteoblast differentiation
                      blastocyst growth
                         inner cell mass cell proliferation
                            inner cell mass fibroblast proliferation
                            inner cell mass lymphocyte proliferation
                            inner cell mass cell cycle
                         trophectoderm cell proliferation
                            trophectoderm fibroblast proliferation
                            trophectoderm lymphocyte proliferation
                            trophectoderm cell cycle
                      blastocyst hatching
                   eye morphogenesis (sensu Mammalia)
                      optic placode formation (sensu Mammalia)
                         optic placode formation during sexual reproduction \(sensu Mammalia\)
                         optic placode formation during asexual reproduction \(sensu Mammalia\)
                      eye photoreceptor cell differentiation \(sensu Mammalia\)
                      compound eye morphogenesis \(sensu Mammalia\)
                      embryonic eye morphogenesis \(sensu Mammalia\)
                      post-embryonic eye morphogenesis \(sensu Mammalia\)
                      eye formation \(sensu Mammalia\)
                      eye branching \(sensu Mammalia\)
                      eye structural organization \(sensu Mammalia\)
                   embryonic hemopoiesis \(sensu Mammalia\)
                   embryonic pattern specification \(sensu Mammalia\)
                   regulation of embryonic development \(sensu Mammalia\)
                   DNA methylation during embryonic development \(sensu Mammalia\)
                   embryonic morphogenesis \(sensu Mammalia\)
                   pseudocleavage \(sensu Mammalia\)
                   zygote asymmetric cytokinesis \(sensu Mammalia\)
                   cellularization \(sensu Mammalia\)
                   embryonic cuticle biosynthesis \(sensu Mammalia\)
                somitogenesis
                   somite specification
                embryonic hemopoiesis \(sensu Vertebrata\)
                embryonic pattern specification \(sensu Vertebrata\)
                regulation of embryonic development \(sensu Vertebrata\)
                DNA methylation during embryonic development \(sensu Vertebrata\)
                embryonic morphogenesis \(sensu Vertebrata\)
                eye morphogenesis \(sensu Vertebrata\)
                pseudocleavage \(sensu Vertebrata\)
                zygote asymmetric cytokinesis \(sensu Vertebrata\)
                cellularization \(sensu Vertebrata\)
                embryonic cuticle biosynthesis \(sensu Vertebrata\)
             embryonic heart tube development
                cardiac cell differentiation
                   cardioblast differentiation
                      aortic cell fate commitment (sensu Insecta)
                         aortic cell fate determination \(sensu Insecta\)
                         aortic cell fate specification \(sensu Insecta\)
                         aortic cell fate commitment \(sensu Insecta\) , tapping
                         aortic cell fate commitment \(sensu Insecta\) , orientation
                         aortic cell fate commitment \(sensu Insecta\) , wing extension
                         aortic cell fate commitment \(sensu Insecta\) , licking
                      cardioblast cell fate commitment
                         cardioblast cell fate determination
                            regulation of cardioblast cell fate determination
                            cardioblast cell division
                         cardioblast cell fate specification
                            regulation of cardioblast cell fate specification
                               negative regulation of cardioblast cell fate specification
                                  inhibition of cardioblast cell fate specification
                                  negative stabilization of cardioblast cell fate specification
                                  negative regulation of cardioblast tracheal cell type specification
                               stabilization of cardioblast cell fate specification
                               positive regulation of cardioblast cell fate specification
                               regulation of cardioblast tracheal cell type specification
                            cardioblast tracheal cell type specification
                         regulation of cardioblast cell fate commitment
                      heart proper cell fate commitment (sensu Insecta)
                         heart proper cell fate determination \(sensu Insecta\)
                         heart proper cell fate specification \(sensu Insecta\)
                         heart proper cell fate commitment \(sensu Insecta\) , tapping
                         heart proper cell fate commitment \(sensu Insecta\) , orientation
                         heart proper cell fate commitment \(sensu Insecta\) , wing extension
                         heart proper cell fate commitment \(sensu Insecta\) , licking
                   pericardial cell differentiation
                      pericardial cell fate commitment
                      pericardial keratinocyte differentiation
                      pericardial lymphocyte differentiation
                      pericardial cell development
                      pericardial adipocyte differentiation
                      pericardial oenocyte differentiation
                      pericardial trichome differentiation
                      pericardial neuron differentiation
                      pericardial oocyte differentiation
                      pericardial hemocyte differentiation
                      pericardial melanocyte differentiation
                      pericardial heterocyst differentiation
                      pericardial spermatid nuclear differentiation
                      pericardial mechanoreceptor differentiation
                      pericardial myoblast differentiation
                      pericardial cell fate specification
                      pericardial osteoblast differentiation
                   cardiac cell fate commitment
                   cardiac keratinocyte differentiation
                   cardiac lymphocyte differentiation
                   cardiac cell development
                   cardiac adipocyte differentiation
                   cardiac oenocyte differentiation
                   cardiac trichome differentiation
                   cardiac neuron differentiation
                   cardiac oocyte differentiation
                   cardiac hemocyte differentiation
                   cardiac melanocyte differentiation
                   cardiac heterocyst differentiation
                   cardiac spermatid nuclear differentiation
                   cardiac mechanoreceptor differentiation
                   cardiac myoblast differentiation
                   cardiac cell fate specification
                   cardiac osteoblast differentiation
                embryonic heart tube anterior/posterior pattern formation
                   aortic cell fate commitment (sensu Insecta)
                      aortic cell fate determination \(sensu Insecta\)
                      aortic cell fate specification \(sensu Insecta\)
                      aortic cell fate commitment \(sensu Insecta\) , tapping
                      aortic cell fate commitment \(sensu Insecta\) , orientation
                      aortic cell fate commitment \(sensu Insecta\) , wing extension
                      aortic cell fate commitment \(sensu Insecta\) , licking
                   heart proper cell fate commitment (sensu Insecta)
                      heart proper cell fate determination \(sensu Insecta\)
                      heart proper cell fate specification \(sensu Insecta\)
                      heart proper cell fate commitment \(sensu Insecta\) , tapping
                      heart proper cell fate commitment \(sensu Insecta\) , orientation
                      heart proper cell fate commitment \(sensu Insecta\) , wing extension
                      heart proper cell fate commitment \(sensu Insecta\) , licking
                   embryonic heart tube anterior/posterior lineage restriction
                   embryonic heart tube anterior/posterior axis specification
                   embryonic heart tube anterior/posterior axis determination , follicular epithelium
                   embryonic heart tube anterior/posterior pattern formation , imaginal disc
             gastrulation
                cell migration during gastrulation
                   mesoderm cell migration during gastrulation
                   neural crest cell migration during gastrulation
                   regulation of cell migration during gastrulation
                   substrate-bound cell migration during gastrulation
                   immune cell migration during gastrulation
                   neuronal migration during gastrulation
                   cell chemotaxis during gastrulation
                   inductive cell migration during gastrulation
                   germ cell migration during gastrulation
                   glia cell migration during gastrulation
                   ameboid cell migration during gastrulation
                   pole cell migration during gastrulation
                formation of primary germ layer
                   ectoderm formation
                      ectoderm cell fate determination
                         regulation of ectoderm cell fate determination
                         ectoderm cell division
                   endoderm formation
                      endoderm cell fate determination
                         regulation of endoderm cell fate determination
                         endoderm cell division
                   mesoderm formation
                      axial mesoderm formation
                         axial mesoderm cell differentiation
                            axial mesoderm cell fate commitment
                               axial mesoderm cell fate determination
                                  regulation of axial mesoderm cell fate determination
                                     negative regulation of axial mesoderm cell fate determination
                                        inhibition of axial mesoderm cell fate determination
                                        negative stabilization of axial mesoderm cell fate determination
                                        negative regulation of axial mesoderm cell division
                                     positive regulation of axial mesoderm cell fate determination
                                        induction of axial mesoderm cell fate determination
                                        initiation of axial mesoderm cell fate determination
                                        positive stabilization of axial mesoderm cell fate determination
                                        positive regulation of axial mesoderm cell division
                                     stabilization of axial mesoderm cell fate determination
                                     regulation of axial mesoderm cell division
                                  axial mesoderm cell division
                               axial mesoderm cell fate specification
                                  regulation of axial mesoderm cell fate specification
                                     negative regulation of axial mesoderm cell fate specification
                                        inhibition of axial mesoderm cell fate specification
                                        negative stabilization of axial mesoderm cell fate specification
                                        negative regulation of axial mesoderm tracheal cell type specification
                                     positive regulation of axial mesoderm cell fate specification
                                        induction of axial mesoderm cell fate specification
                                        initiation of axial mesoderm cell fate specification
                                        positive stabilization of axial mesoderm cell fate specification
                                        positive regulation of axial mesoderm tracheal cell type specification
                                     stabilization of axial mesoderm cell fate specification
                                     regulation of axial mesoderm tracheal cell type specification
                                  axial mesoderm tracheal cell type specification
                               regulation of axial mesoderm cell fate commitment
                            regulation of axial mesoderm cell differentiation
                            axial mesoderm keratinocyte differentiation
                            axial mesoderm lymphocyte differentiation
                            axial mesoderm cell development
                            axial mesoderm adipocyte differentiation
                            axial mesoderm oenocyte differentiation
                            axial mesoderm trichome differentiation
                            axial mesoderm neuron differentiation
                            axial mesoderm oocyte differentiation
                            axial mesoderm hemocyte differentiation
                            axial mesoderm melanocyte differentiation
                            axial mesoderm heterocyst differentiation
                            axial mesoderm spermatid nuclear differentiation
                            axial mesoderm mechanoreceptor differentiation
                            axial mesoderm myoblast differentiation
                            axial mesoderm cell fate specification
                            axial mesoderm osteoblast differentiation
                         regulation of axial mesoderm formation
                         axial mesoderm migration
                      lateral mesoderm formation
                         lateral mesoderm cell differentiation
                            lateral mesoderm cell fate commitment
                               lateral mesoderm cell fate determination
                                  regulation of lateral mesoderm cell fate determination
                                     negative regulation of lateral mesoderm cell fate determination
                                        inhibition of lateral mesoderm cell fate determination
                                        negative stabilization of lateral mesoderm cell fate determination
                                        negative regulation of lateral mesoderm cell division
                                     positive regulation of lateral mesoderm cell fate determination
                                        induction of lateral mesoderm cell fate determination
                                        initiation of lateral mesoderm cell fate determination
                                        positive stabilization of lateral mesoderm cell fate determination
                                        positive regulation of lateral mesoderm cell division
                                     stabilization of lateral mesoderm cell fate determination
                                     regulation of lateral mesoderm cell division
                                  lateral mesoderm cell division
                               lateral mesoderm cell fate specification
                                  regulation of lateral mesoderm cell fate specification
                                     negative regulation of lateral mesoderm cell fate specification
                                        inhibition of lateral mesoderm cell fate specification
                                        negative stabilization of lateral mesoderm cell fate specification
                                        negative regulation of lateral mesoderm tracheal cell type specification
                                     positive regulation of lateral mesoderm cell fate specification
                                        induction of lateral mesoderm cell fate specification
                                        initiation of lateral mesoderm cell fate specification
                                        positive stabilization of lateral mesoderm cell fate specification
                                        positive regulation of lateral mesoderm tracheal cell type specification
                                     stabilization of lateral mesoderm cell fate specification
                                     regulation of lateral mesoderm tracheal cell type specification
                                  lateral mesoderm tracheal cell type specification
                               regulation of lateral mesoderm cell fate commitment
                            regulation of lateral mesoderm cell differentiation
                            lateral mesoderm keratinocyte differentiation
                            lateral mesoderm lymphocyte differentiation
                            lateral mesoderm cell development
                            lateral mesoderm adipocyte differentiation
                            lateral mesoderm oenocyte differentiation
                            lateral mesoderm trichome differentiation
                            lateral mesoderm neuron differentiation
                            lateral mesoderm oocyte differentiation
                            lateral mesoderm hemocyte differentiation
                            lateral mesoderm melanocyte differentiation
                            lateral mesoderm heterocyst differentiation
                            lateral mesoderm spermatid nuclear differentiation
                            lateral mesoderm mechanoreceptor differentiation
                            lateral mesoderm myoblast differentiation
                            lateral mesoderm cell fate specification
                            lateral mesoderm osteoblast differentiation
                         regulation of lateral mesoderm formation
                         lateral mesoderm migration
                      mesoderm cell differentiation
                         axial mesoderm cell differentiation
                            axial mesoderm cell fate commitment
                               axial mesoderm cell fate determination
                                  regulation of axial mesoderm cell fate determination
                                     negative regulation of axial mesoderm cell fate determination
                                        inhibition of axial mesoderm cell fate determination
                                        negative stabilization of axial mesoderm cell fate determination
                                        negative regulation of axial mesoderm cell division
                                     positive regulation of axial mesoderm cell fate determination
                                        induction of axial mesoderm cell fate determination
                                        initiation of axial mesoderm cell fate determination
                                        positive stabilization of axial mesoderm cell fate determination
                                        positive regulation of axial mesoderm cell division
                                     stabilization of axial mesoderm cell fate determination
                                     regulation of axial mesoderm cell division
                                  axial mesoderm cell division
                               axial mesoderm cell fate specification
                                  regulation of axial mesoderm cell fate specification
                                     negative regulation of axial mesoderm cell fate specification
                                        inhibition of axial mesoderm cell fate specification
                                        negative stabilization of axial mesoderm cell fate specification
                                        negative regulation of axial mesoderm tracheal cell type specification
                                     positive regulation of axial mesoderm cell fate specification
                                        induction of axial mesoderm cell fate specification
                                        initiation of axial mesoderm cell fate specification
                                        positive stabilization of axial mesoderm cell fate specification
                                        positive regulation of axial mesoderm tracheal cell type specification
                                     stabilization of axial mesoderm cell fate specification
                                     regulation of axial mesoderm tracheal cell type specification
                                  axial mesoderm tracheal cell type specification
                               regulation of axial mesoderm cell fate commitment
                            regulation of axial mesoderm cell differentiation
                            axial mesoderm keratinocyte differentiation
                            axial mesoderm lymphocyte differentiation
                            axial mesoderm cell development
                            axial mesoderm adipocyte differentiation
                            axial mesoderm oenocyte differentiation
                            axial mesoderm trichome differentiation
                            axial mesoderm neuron differentiation
                            axial mesoderm oocyte differentiation
                            axial mesoderm hemocyte differentiation
                            axial mesoderm melanocyte differentiation
                            axial mesoderm heterocyst differentiation
                            axial mesoderm spermatid nuclear differentiation
                            axial mesoderm mechanoreceptor differentiation
                            axial mesoderm myoblast differentiation
                            axial mesoderm cell fate specification
                            axial mesoderm osteoblast differentiation
                         mesoderm cell fate commitment
                            axial mesoderm cell fate commitment
                               axial mesoderm cell fate determination
                                  regulation of axial mesoderm cell fate determination
                                     negative regulation of axial mesoderm cell fate determination
                                        inhibition of axial mesoderm cell fate determination
                                        negative stabilization of axial mesoderm cell fate determination
                                        negative regulation of axial mesoderm cell division
                                     positive regulation of axial mesoderm cell fate determination
                                        induction of axial mesoderm cell fate determination
                                        initiation of axial mesoderm cell fate determination
                                        positive stabilization of axial mesoderm cell fate determination
                                        positive regulation of axial mesoderm cell division
                                     stabilization of axial mesoderm cell fate determination
                                     regulation of axial mesoderm cell division
                                  axial mesoderm cell division
                               axial mesoderm cell fate specification
                                  regulation of axial mesoderm cell fate specification
                                     negative regulation of axial mesoderm cell fate specification
                                        inhibition of axial mesoderm cell fate specification
                                        negative stabilization of axial mesoderm cell fate specification
                                        negative regulation of axial mesoderm tracheal cell type specification
                                     positive regulation of axial mesoderm cell fate specification
                                        induction of axial mesoderm cell fate specification
                                        initiation of axial mesoderm cell fate specification
                                        positive stabilization of axial mesoderm cell fate specification
                                        positive regulation of axial mesoderm tracheal cell type specification
                                     stabilization of axial mesoderm cell fate specification
                                     regulation of axial mesoderm tracheal cell type specification
                                  axial mesoderm tracheal cell type specification
                               regulation of axial mesoderm cell fate commitment
                            intermediate mesoderm cell fate commitment
                               intermediate mesoderm cell fate determination
                                  regulation of intermediate mesoderm cell fate determination
                                     negative regulation of intermediate mesoderm cell fate determination
                                        inhibition of intermediate mesoderm cell fate determination
                                        negative stabilization of intermediate mesoderm cell fate determination
                                        negative regulation of intermediate mesoderm cell division
                                     positive regulation of intermediate mesoderm cell fate determination
                                        induction of intermediate mesoderm cell fate determination
                                        initiation of intermediate mesoderm cell fate determination
                                        positive stabilization of intermediate mesoderm cell fate determination
                                        positive regulation of intermediate mesoderm cell division
                                     stabilization of intermediate mesoderm cell fate determination
                                     regulation of intermediate mesoderm cell division
                                  intermediate mesoderm cell division
                               intermediate mesoderm cell fate specification
                                  regulation of intermediate mesoderm cell fate specification
                                     negative regulation of intermediate mesoderm cell fate specification
                                        inhibition of intermediate mesoderm cell fate specification
                                        negative stabilization of intermediate mesoderm cell fate specification
                                        negative regulation of intermediate mesoderm tracheal cell type specification
                                     positive regulation of intermediate mesoderm cell fate specification
                                        induction of intermediate mesoderm cell fate specification
                                        initiation of intermediate mesoderm cell fate specification
                                        positive stabilization of intermediate mesoderm cell fate specification
                                        positive regulation of intermediate mesoderm tracheal cell type specification
                                     stabilization of intermediate mesoderm cell fate specification
                                     regulation of intermediate mesoderm tracheal cell type specification
                                  intermediate mesoderm tracheal cell type specification
                               regulation of intermediate mesoderm cell fate commitment
                            lateral mesoderm cell fate commitment
                               lateral mesoderm cell fate determination
                                  regulation of lateral mesoderm cell fate determination
                                     negative regulation of lateral mesoderm cell fate determination
                                        inhibition of lateral mesoderm cell fate determination
                                        negative stabilization of lateral mesoderm cell fate determination
                                        negative regulation of lateral mesoderm cell division
                                     positive regulation of lateral mesoderm cell fate determination
                                        induction of lateral mesoderm cell fate determination
                                        initiation of lateral mesoderm cell fate determination
                                        positive stabilization of lateral mesoderm cell fate determination
                                        positive regulation of lateral mesoderm cell division
                                     stabilization of lateral mesoderm cell fate determination
                                     regulation of lateral mesoderm cell division
                                  lateral mesoderm cell division
                               lateral mesoderm cell fate specification
                                  regulation of lateral mesoderm cell fate specification
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