Olfactory bulbs of baleen whales and the evolution of the sense of smell in whales
| Project/Area Number |
24770075
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Kyoto University |
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Principal Investigator |
KISHIDA Takushi 京都大学, 野生動物研究センター, 助教 (40527892)
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| Research Collaborator |
THEWISSEN J. G. M. Hans
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 鯨類 / 海洋環境適応進化 / ゲノム / 組織化学 / 化学感覚 / 進化 / 海洋環境適応 / ホッキョククジラ / クロミンククジラ / 嗅球 / 化石鯨類 / 国際情報交換 / アメリカ合衆国 / ヒゲクジラ |
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| Outline of Final Research Achievements |
Based on the histological analyses, it was revealed that there are no glomeruli distributed at the dorsal side of the olfactory bulbs of bowhead whales (Mysticeti). We sequenced and assembled the whole genome sequences of a baleen whale (Antarctic minke whale) and confirmed that baleen whales have no genes that are expressed specifically at the dorsal domain of the olfactory bulbs. Based on the behavior of the dorsal domain-ablated transgenic mice, it was previously reported that the dorsal domain induces innate avoidance behavior against odors of predators and spoiled foods. It is speculated that whales have lost such innate avoidance behavior during their migration from land to water.
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Report
(4 results)
Research Products
(15 results)
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[Presentation] 鯨類の嗅覚能力とその進化2014
Author(s)
岸田拓士
Organizer
日本哺乳類学会2014年大会
Place of Presentation
京都大学（京都府京都市）
Year and Date
2014-09-04 – 2014-09-07
Related Report
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