An ontology for the development and anatomy of Amphioxus (Branchiostoma lanceolatum). Amphioxus Development and Anatomy Ontology (AMPHX) definition citation part of immediately preceded by develops from existence starts during existence ends during NCIT:C16599 gametogenesis NCIT:C16938 oogenesis spermatogenesis gamete stage unfertilized egg stage spermatozoid stage UBERON:0000068 embryonic development UBERON:0000106 zygote period UBERON:0000107 cleavage period UBERON:0000108 blastula period UBERON:0000109 gastrula period UBERON:0000110 neurula period tailbud period UBERON:0000069 larval development UBERON:0000069 larva period metamorphosis juvenile UBERON:0034919 juvenile period adult UBERON:0000113 adult period fertilized egg: time since fertilization is 0min, corresponding to 0.00% of development 1-cell stage Hirakow and Kajita 1990 UBERON:0007232 2-cell stage Hirakow and Kajita 1990 UBERON:0007233 4-cell stage Hirakow and Kajita 1990 UBERON:0007236 8-cell stage Hirakow and Kajita 1990 16-cell stage Hirakow and Kajita 1990 32-cell stage Hirakow and Kajita 1990 64-cell stage Hirakow and Kajita 1990 128-cell stage 256-cell stage false initiation of asynchronous cell division Hirakow and Kajita 1990 UBERON:0000108 blastula stage initial flattening of the vegetal zone gastrula-G0 stage flattened vegetal pole Hirakow and Kajita 1991 very early gastrula gastrula-G1 stage invaginated vegetal pole, mesendoderm does not touch ectoderm Hirakow and Kajita 1991 very early gastrula gastrula-G2 stage cap shaped, mesendoderm touches ectoderm Hirakow and Kajita 1991 early gastrula gastrula-G3 stage cup shaped Hirakow and Kajita 1991 mid-gastrula gastrula-G4 stage vase shaped, due to body elongation during blastopore closure Hirakow and Kajita 1991 late gastrula gastrula-G5 stage bottle shaped, flattening neuroectoderm Hirakow and Kajita 1991 very late gastrula gastrula-G6 stage gastrula G7 stage false neural plate, just before blastopore closure very early neurula neurula-N0 stage 1-3 somite pairs Hirakow and Kajita 1994 very early neurula neurula-N1 stage 4-5 somite pairs, hatching early neurula neurula-N2 stage 6-7 somite pairs Hirakow and Kajita 1994 mid-neurula neurula-N3 stage 8-9 somite pairs, prior to schizocoelic somite formation late neurula neurula-N4 stage 12 somite pairs, tailbud shape, enlarged pharyngeal region early premouth tailbud-T0 stage 13 somite pairs, mouth and pre-oral pit anlagen, first pigment spot late premouth tailbud-T1 stage open mouth, no open gill slits early larva larva-L0 stage open mouth, 1 open gill slit Hirakow and Kajita 1994 1-gill slit larva larva-L1 stage open mouth, 2 open gill slits Hirakow and Kajita 1994 2-gill slit larva larva-L2 stage open mouth, 3 open gill slits 3-gill slit larva larva-L3 stage open mouth, 4-13 gill slits late larva larva-L4 stage open mouth, 14-15 gill slits pre-metamorphic larva larva-PL stage metapleural folds start to grow early metamorphic larva larva-EML stage gill slit row starts to duplicate, hepatic caecum starts to develop mid-metamorphic larva larva-MML stage mouth migration to frontal position late metamorphic larva larva-LML stage adult-like morphology, length of less than 3cm post-metamorphic juvenile juvenile-J stage adult-like morphology, length of more than 3cm adult adult-A stage 10-11 somite pairs Hirakow and Kajita 1994 very late neurula neurula-N5 stage whole organism NCIT:C12518 blastomere NCIT:C12598 whole oocyte NCIT:C12801 tissue NCIT:C34144 embryonic territory NCIT:C12438 central nervous system vegetal pole cytoplasm vegetal pole cytoplasm of oocyte vegetal pole cytoplasm of embryo animal pole cytoplasm animal pole cytoplasm of oocyte animal pole cytoplasm of embryo diploid cell produced by fusion of sperm cell nucleus and egg cell CL:0000365 SPD:0000786 zygote UBERON:0007232 2-cell stage embryo UBERON:0007233 4-cell stage embryo cell of the embryo, before the formation of germ layers is complete CL:0000007 blastomere of 2-cell stage embryo cell of the embryo, before the formation of germ layers is complete CL:0000007 blastomere of 4-cells stage embryo cell located at the animal pole of the embryo, of small size micromere cell located at the vegetal pole of the embryo, of big size macromere cell located at the animal pole of the embryo, before gastrulation starts animal blastomere cell located at the vegetal pole of the embryo, before gastrulation starts vegetal blastomere UBERON:0006601 presumptive ectoderm dorsal presumptive ectoderm ventral presumptive ectoderm presumptive mesendoderm UBERON:0006603 dorsal presumptive mesendoderm UBERON:0006595 ventral presumptive mesendoderm UBERON:3010455 blastopore lip UBERON:3010457 dorsal blastopore lip UBERON:3010456 ventral blastopore lip UBERON:0000924 ectoderm dorsal ectoderm ventral ectoderm UBERON:6000119 anterior ectoderm posterior ectoderm mesendoderm dorsal mesendoderm ventral mesendoderm anterior mesendoderm posterior mesendoderm UBERON:0007284 presumptive neural plate presumptive border of the neural plate UBERON:2007014 presumptive anterior neural plate presumptive epidermis presumptive anterior epidermis dorsal axial mesendoderm dorsal paraxial mesendoderm UBERON:0003075 neural plate border of the neural plate anterior neural plate UBERON:0007376 epidermis anterior epidermis ventral epidermis UBERON:0000926 mesoderm UBERON:0004880 presumptive notochord presumptive somite pair 1 presumptive somite pair 2 presumptive somite pair 3 presumptive left somite 1 presumptive right somite 1 presumptive left somite 2 presumptive right somite 2 presumptive left somite 3 presumptive right somite 3 UBERON:0003077 paraxial mesoderm left mesoderm right mesoderm left endoderm right endoderm UBERON:0002328 notochord somite pair 1 somite pair 2 somite pair 3 posterior paraxial mesoderm UBERON:0000925 endoderm anterior endoderm posterior endoderm UBERON:0002533 tail bud inner lip of blastopore presumptive cerebral vesicle presumptive spinal cord left epidermis right epidermis epidermal sensory neuron anterior somite pair 1 posterior somite pair 1 dorsal somite pair 1 ventral somite pair 1 left somite 1 right somite 1 left ventral somite 1 anterior somite pair 2 posterior somite pair 2 dorsal somite pair 2 ventral somite pair 2 left somite 2 right somite 2 anterior somite pair 3 posterior somite pair 3 dorsal somite pair 3 ventral somite pair 3 left somite 3 right somite 3 UBERON:0001049 neural tube dorsal neural tube UBERON:0003306 ventral neural tube lateral neural tube UBERON:0009862 cerebral vesicle UBERON:0002240 spinal cord somite pair 4 anterior somite pair 4 posterior somite pair 4 dorsal somite pair 4 ventral somite pair 4 left somite 4 right somite 4 somite pair 5 anterior somite pair 5 posterior somite pair 5 dorsal somite pair 5 ventral somite pair 5 left somite 5 right somite 5 somite pair 6 anterior somite pair 6 posterior somite pair 6 dorsal somite pair 6 ventral somite pair 6 left somite 6 right somite 6 somite pair 7 anterior somite pair 7 posterior somite pair 7 dorsal somite pair 7 ventral somite pair 7 left somite 7 right somite 7 somite pair 8 anterior somite pair 8 posterior somite pair 8 dorsal somite pair 8 ventral somite pair 8 left somite 8 right somite 8 UBERON:0009868 left Hatschek's diverticulum UBERON:0009869 right Hatschek's diverticulum pharyngeal endoderm left pharyngeal endoderm right pharyngeal endoderm ventral pharyngeal endoderm mid-endoderm UBERON:0007097 chordoneural hinge posterior wall of neurenteric canal anterior cerebral vesicle posterior cerebral vesicle dorsal cerebral vesicle ventral cerebral vesicle anterior spinal cord posterior spinal cord posterior dorsal spinal cord posterior ventral spinal cord lateral spinal cord posterior epidermis anterior notochord posterior notochord UBERON:2000083 ventral mesoderm myotome of somite pair 1 external cell layer of somite pair 1 presumptive Hatschek's nephridium myotome of somite pair 2 external cell layer of somite pair 2 myotome of somite pair 3 external cell layer of somite pair 3 myotome of somite pair 4 external cell layer of somite pair 4 myotome of somite pair 5 external cell layer of somite pair 5 myotome of somite pair 6 external cell layer of somite pair 6 myotome of somite pair 7 external cell layer of somite pair 7 myotome of somite pair 8 external cell layer of somite pair 8 presumptive club-shaped gland presumptive endostyle somite pair 9 anterior somite pair 9 posterior somite pair 9 myotome of somite pair 9 external cell layer of somite pair 9 ventral somite pair 9 left somite 9 right somite 9 anterior somite pair 10 posterior somite pair 10 myotome of somite pair 10 external cell layer of somite pair 10 ventral somite pair 10 left somite 10 right somite 10 anterior somite pair 11 posterior somite pair 11 myotome of somite pair 11 external cell layer of somite pair 11 ventral somite pair 11 left somite 11 right somite 11 somite pair 10 somite pair 11 UBERON:0018340 pigment spot subintestinal vessel anlage somite pair 12 anterior somite pair 12 posterior somite pair 12 myotome of somite pair 12 external cell layer of somite pair 12 ventral somite pair 12 left somite 12 right somite 12 somite pair 13 anterior somite pair 13 posterior somite pair 13 myotome of somite pair 13 external cell layer of somite pair 13 ventral somite pair 13 left somite 13 right somite 13 nascent somite pair left nascent somite right nascent somite UBERON:0000930 mouth primordium presumptive first pharyngeal gill slit dorsal pharyngeal endoderm UBERON:0001555 gut UBERON:0001041 anterior gut UBERON:0001045 mid-gut ventral mid-gut UBERON:0001046 hind-gut schizocoelic somite pair anterior schizocoelic somite pair posterior schizocoelic somite pair myotome of schizocoelic somite pair external cell layer of schizocoelic somite pair ventral schizocoelic somite pair left schizocoelic somite right schizocoelic somite dorsal ocellus tail fin UBERON:0011944 subintestinal vessel dorsal mesoderm UBERON:0005805 dorsal aorta UBERON:0009866 Hatschek's nephridium UBERON:0009865 pre-oral pit rostral coelom UBERON:0000165 mouth club-shaped gland dorsal club-shaped gland ventral club-shaped gland UBERON:0006870 endostyle Iliocolonic region presumptive anus NCIT:C12401 frontal eye UBERON:0008815 first pharyngeal gill slit presumptive second pharyngeal gill slit UBERON:0001245 anus UBERON:0008815 second pharyngeal gill slit presumptive third pharyngeal gill slit UBERON:0008815 third pharyngeal gill slit presumptive pharyngeal gill slit infundibular organ lamellar body primary motor center myomere 1 left myomere 1 right myomere 1 UBERON:0002329 somite pair external cell layer myomere 2 left myomere 2 right myomere 2 myomere 3 left myomere 3 right myomere 3 myomere 4 left myomere 4 right myomere 4 myomere 5 left myomere 5 right myomere 5 myomere 6 left myomere 6 right myomere 6 myomere 7 left myomere 7 right myomere 7 myomere 8 left myomere 8 right myomere 8 myomere 9 left myomere 9 right myomere 9 myomere 10 left myomere 10 right myomere 10 myomere 11 left myomere 11 right myomere 11 myomere 12 left myomere 12 right myomere 12 myomere 13 left myomere 13 right myomere 13 myomere of schizocoelic somite pair left schizocoelic somite myomere right schizocoelic somite myomere UBERON:0008815 pharyngeal gill slit metapleural fold atrium wall UBERON:0006562 pharynx dorsal pharynx ventral pharynx second row of pharyngeal gill slit tongue bar UBERON:0012473 cirrus UBERON:0003097 dorsal fin ventral fin atriopore wheel organ Hatschek's groove left pharyngeal gill slit right pharyngeal gill slit hepatic caecum bud UBERON:0003082 myomere left myomere right myomere UBERON:0002067 dermis velum velar tentacle UBERON:0012474 hepatic caecum UBERON:0000473 male gonad UBERON:0000992 female gonad cell cellular component anatomical structure life cycle stage