2009 Fiscal Year Final Research Report
Sytematics, phylogeney, and evolution of dicyemid mesozoans
| Project/Area Number |
18570087
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Osaka University |
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Principal Investigator |
FURUYA Hidetaka Osaka University, 大学院・理学研究科, 准教授 (20314354)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 中生動物 / 分類 / 系統 / 進化 / 共進化 |
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| Research Abstract |
(1) Description of new species
Ten new species of dicyemid were found in five species of cephalopods. Three dicyemid species of Rossia pacifica and enteroctopus dofleini were redscribed.
(2) Phylogenetical relationship of dicyemids
The relationship of dicyemids was studied using the amino acid sequences of the gap junction protein, Innexin. The dicyemid was more closely related to mollusks and annelids than platyhelmintes.
(3) Coevolution
The phylogenetic trees of dicyemid species and the host cephalopods revealed that dicyemids and cephalopods did not co-evolved. Some dicyemid species change the host species, some co-speciated with the host cephalopods.
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Research Products
(24 results)
