2011 Fiscal Year Final Research Report
Cephalochordate molecular phylogenetics covering most species unravels its species richness and detailed evolutionary pathway
| Project/Area Number |
21370034
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Toho University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NISHIDA Mutsumi 東京大学, 大気海洋研究所, 教授 (90136896)
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| Project Period (FY) |
2009 – 2011
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| Keywords | ナメクジウオ / 分子系統解析 / supermatrix法 / 隠蔽種 / ナメクジウオ属 / オナガナメクジウオ属 / カタナメクジウオ属 |
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| Research Abstract |
As the final stage of our long-standing "cephalochordate phylogeny project", the previous and present studies have given robust phylograms for each of the all 3 genera using the whole mitogenomes. Further, the supermatrix analysis has discovered 9 cryptic species. This means that our material of ca. 45 populations over the world contained 31 species of 3 genera in all in terms of molecular phylogenetics, attaining to 80% of the cephalochordate species. Thus, we have got information enough for a total understanding of its evolutionary pathway and for a far better understanding of its species richness.
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