Developmental expression of the hemichordate otx ortholog.
The phylogenetic location of hemichordates is unique because they seem to fill an evolutionary gap between echinoderms and chordates. We report here characterization of Pf-otx, a hemichordate ortholog of otx, with its embryonic and larval expression pattern. Pf-otx is initially expressed in the vegetal plate of the blastula. Expression remains evident in the archenteron through gastrulation and then disappears. A new expression domain appears near the mouth along the preoral and postoral ciliated bands in the early tornaria larva.
Harada
Y
Y
Department of Zoology, Graduate School of Science, Kyoto University, Kyoto, Japan. harada@ascidian.zool.kyoto-u.ac.jp
Okai
N
N
Taguchi
S
S
Tagawa
K
K
Humphreys
T
T
Satoh
N
N
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002816:Chordata, Nonvertebrate / Q000196:embryology / Q000235:genetics*; D018076:DNA, Complementary; D015870:Gene Expression; D018398:Homeodomain Proteins / Q000235:genetics*; D008969:Molecular Sequence Data; D051857:Otx Transcription Factors; D017386:Sequence Homology, Amino Acid
D018076:DNA, Complementary; D018398:Homeodomain Proteins; D051857:Otx Transcription Factors