| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
I crossed an inbred line of Hd-rRII1 and Kaga. I found that The variation of number of anal fin rays correlate with anteroposterior length of anal fin and interval between anal fin rays on F2 fish. Phenylthiourea treatment induced a nonheritable, shortened body length by vertebral fusion resulting from a twisted notochord, and decreased the number of anal fin rays. Hd-rRII1 fry were reared at two different temperatures, 26°Cand 17°C after hatching. The interval between anal fin rays became narrower in the 17°C batch and, as a result, the mean number of anal fin rays increased. These experiments suggested that the number of anal fin rays was determined by the anteroposterior length of the anal fin and the intervals between rays.
fs mutant has an abnormal pattern of fin rays. I assigned the fs locus to chromosome 3 by bulk segregation analysis.
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