| 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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| 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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