Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus
Abstract Echinoderms constitute an animal phylum characterized by the pentaradial body plan. During the development from bilateral larvae to pentaradial adults, the formation of the multiple of five hydrocoel lobes, i.e., the buddings from the mesodermal coelom, is the firstly emerging pentameral ch...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-04-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-09691-y |
| _version_ | 1818479409206657024 |
|---|---|
| author | Sumio Udagawa Takafumi Ikeda Kohei Oguchi Hisanori Kohtsuka Toru Miura |
| author_facet | Sumio Udagawa Takafumi Ikeda Kohei Oguchi Hisanori Kohtsuka Toru Miura |
| author_sort | Sumio Udagawa |
| collection | DOAJ |
| description | Abstract Echinoderms constitute an animal phylum characterized by the pentaradial body plan. During the development from bilateral larvae to pentaradial adults, the formation of the multiple of five hydrocoel lobes, i.e., the buddings from the mesodermal coelom, is the firstly emerging pentameral character. The developmental mechanism underlying the hydrocoel-lobe formation should be revealed to understand the evolutionary process of this unique and highly derived body plan of echinoderms, although the morphogenetic mechanisms of hydrocoel lobes are largely uninvestigated. In this study, using the sea cucumber Apostichopus japonicus, in which hydrocoel is easily observable, the developmental process of hydrocoel lobes was described in detail, focusing on cell proliferation and rearrangement. Cell proliferation was not specifically distributed in the growing tips of the hydrocoel lobes, and inhibition of cell proliferation did not affect lobe formation. During lobe formation, the epithelium of the hydrocoel lobes was firstly thickened and then transformed into a simple epithelium, suggesting that tissue expansion via tissue remodeling contributes to the hydrocoel-lobe formation. |
| first_indexed | 2024-12-10T11:10:13Z |
| format | Article |
| id | doaj.art-f977d537c5244f63a0b56d8381204ece |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-10T11:10:13Z |
| publishDate | 2022-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-f977d537c5244f63a0b56d8381204ece2022-12-22T01:51:26ZengNature PortfolioScientific Reports2045-23222022-04-011211910.1038/s41598-022-09691-yHydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicusSumio Udagawa0Takafumi Ikeda1Kohei Oguchi2Hisanori Kohtsuka3Toru Miura4Misaki Marine Biological Station, School of Science, The University of TokyoDepartment of Biological Sciences, Graduate School of Science, The University of TokyoMisaki Marine Biological Station, School of Science, The University of TokyoMisaki Marine Biological Station, School of Science, The University of TokyoMisaki Marine Biological Station, School of Science, The University of TokyoAbstract Echinoderms constitute an animal phylum characterized by the pentaradial body plan. During the development from bilateral larvae to pentaradial adults, the formation of the multiple of five hydrocoel lobes, i.e., the buddings from the mesodermal coelom, is the firstly emerging pentameral character. The developmental mechanism underlying the hydrocoel-lobe formation should be revealed to understand the evolutionary process of this unique and highly derived body plan of echinoderms, although the morphogenetic mechanisms of hydrocoel lobes are largely uninvestigated. In this study, using the sea cucumber Apostichopus japonicus, in which hydrocoel is easily observable, the developmental process of hydrocoel lobes was described in detail, focusing on cell proliferation and rearrangement. Cell proliferation was not specifically distributed in the growing tips of the hydrocoel lobes, and inhibition of cell proliferation did not affect lobe formation. During lobe formation, the epithelium of the hydrocoel lobes was firstly thickened and then transformed into a simple epithelium, suggesting that tissue expansion via tissue remodeling contributes to the hydrocoel-lobe formation.https://doi.org/10.1038/s41598-022-09691-y |
| spellingShingle | Sumio Udagawa Takafumi Ikeda Kohei Oguchi Hisanori Kohtsuka Toru Miura Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus Scientific Reports |
| title | Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus |
| title_full | Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus |
| title_fullStr | Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus |
| title_full_unstemmed | Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus |
| title_short | Hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber, Apostichopus japonicus |
| title_sort | hydrocoel morphogenesis forming the pentaradial body plan in a sea cucumber apostichopus japonicus |
| url | https://doi.org/10.1038/s41598-022-09691-y |
| work_keys_str_mv | AT sumioudagawa hydrocoelmorphogenesisformingthepentaradialbodyplaninaseacucumberapostichopusjaponicus AT takafumiikeda hydrocoelmorphogenesisformingthepentaradialbodyplaninaseacucumberapostichopusjaponicus AT koheioguchi hydrocoelmorphogenesisformingthepentaradialbodyplaninaseacucumberapostichopusjaponicus AT hisanorikohtsuka hydrocoelmorphogenesisformingthepentaradialbodyplaninaseacucumberapostichopusjaponicus AT torumiura hydrocoelmorphogenesisformingthepentaradialbodyplaninaseacucumberapostichopusjaponicus |