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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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,120,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2006: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | 中生動物 / 分類 / 系統 / 進化 / 共進化 / ニハイチュウ / イネキシン / 細胞数 / ミトコンドリア遺伝子 / テナガコウイカ / メンダコ / 螺旋型卵割動物 / 系統分類 / 宿主特異性 / 螺旋卵割動物 / 片利共生 / ホストスイッチ / イントロン / Pax遺伝子 / Zic遺伝子 / 頭足類 / イネキシン遺伝子 / COI遺伝子 |
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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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Report
(6 results)
Research Products
(53 results)
