Explosive geographic diversification of chromosome number in harvestmen and speciation accompanied by circular overlap and double invasion
| Project/Area Number |
26440218
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Tottori University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 種分化 / 地理的分化 / 染色体 / 環状重複 / 倍数体 / ザトウムシ類 / 二重侵入 / 単為生殖 / ザトウムシ / 染色体分化 |
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| Outline of Final Research Achievements |
Extensive chromosome surveys and molecular phylogenetic analyses recently made on several opilionid species (or species-groups) have revealed that extensive revisions are needed for systematics of those species. Results of molecular phylogeny obtained denied a hyhothesis that Gagrellula grandis and G. ferruginea in the Kyushu Island have been differentiatiated through double invasions via Island Yakushima. A race of Nelima from the Izu-Hakone areas that has been thought as a derivative of Nelima nigricoxa in western Japan showed close relationship to Nelima genufusca in eastern Honshu. This indicates the Izu-Hakone race may have been differentiated through a circular overlap from Nelima genufusca populations in the northern Kanto through the Boso Peninsula.
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Report
(4 results)
Research Products
(37 results)
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[Journal Article] ザトウムシ目2015
Author(s)
鶴崎展巨・鈴木正将
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Journal Title
In: 青木淳一（編著）日本産土壌動物 分類のための図解検索【第2版】東海大学出版部（東京）1969 pp.
Volume: なし
Pages: 121-145
Related Report
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[Presentation] Population genomics and geographical parthenogenesis in Japanese harvestmen (Opiliones, Sclerosomatidae).2016
Author(s)
Burns, M, Hedin, M., Tsurusaki N.
Organizer
the 20th International Congress of Arachnology.
Place of Presentation
Burns, M., Hedin, M., Tsurusaki, N.
Related Report
Int'l Joint Research
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