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Novel Endostyle-Specific Genes in the Ascidian Ciona intestinalis
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sasaki, Akane Miyamoto, Yuki Satou, Yutaka Satoh, Nori Ogasawara, Michio |
| Copyright Year | 2003 |
| Abstract | Abstract The endostyle is a pharyngeal organ of Urochordata, Cephalochordata and larval Cyclostomata. This organ secretes mucus-proteins for internal filter feeding, a feeding system that must have developed in the common ancestor of these subphyla. Therefore, the endostyle is a key structure to understanding the origin and evolution of chordates. A previous study of the overall gene expression in Ciona intestinalis young adults yielded several candidates for ascidian endostyle-specific genes. In the present study, we determined in detail the expression profiles of six novel endostyle-specific genes. Ci-VWFL1 and CiVWFL2 encode related proteins similar to vertebrate von Willebrand factor, and were continuously expressed in zones 4 and 2 of the developing endostyle, respectively. The expression of Ci-Ends8 was observed in the entire region of zone 6 in young adults; however, the expression of this gene was restricted to the dorsal- and ventral-regions of zone 6 in the adult endostyle. The expression of Ci-Ends9 and Ci-Ends10 was observed in zones 6 and 4 in young adults, respectively, and was downregulated in the adult endostyle. Ci-Ends11 showed an expression pattern similar to that of Ciona TTF-1, which encodes a thyroid-related transcription factor. The predicted amino acid sequence of Ci-Ends10 showed similarity to Trip230, and that of Ci-Ends11 resembled Ptp4E. These molecules might be useful for further analysis of the development, function and evolution of the endostyle. |
| Starting Page | 1025 |
| Ending Page | 1030 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.2108/zsj.20.1025 |
| Alternate Webpage(s) | https://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/57203/1/K044.pdf |
| Alternate Webpage(s) | https://bioone.org/journalArticle/Download?fullDOI=10.2108/zsj.20.1025 |
| PubMed reference number | 12951410 |
| Alternate Webpage(s) | https://doi.org/10.2108/zsj.20.1025 |
| Journal | Medline |
| Volume Number | 20 |
| Journal | Zoological science |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
