2013 Fiscal Year Final Research Report
Adaptation of visual pigment classes to habitat depths and its relation on fish diversity
| Project/Area Number |
23570113
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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 | Mie University |
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Principal Investigator |
MIYAZAKI Taeko 三重大学, 生物資源学研究科, 准教授 (60346004)
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| Project Period (FY) |
2011 – 2013
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| Keywords | オプシン / 色覚 / 種多様性 / 生息水深 / 環境適応 |
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| Research Abstract |
Expressions of cone opsin genes in the retinas of fish species belonging suborder Scombroidei were investigated. Each of Scomber australasicus and Auxis rochei, which are pelagic species, had single green (RH2) and blue (SWS2) opsin gene. Sphyraena pinguis living more upper layer than those species, duplicated both genes of RH2 and SWS2. The two abyssal species of Trichiurus lepturus and Gempylus serpens had RH2 gene, however, SWS2 gene was not isolated from either of them. Rod-opsin (RH1) gene was dominantly expressed class in these two deeper species.
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