| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
To revise the population systematics of the Japanese/Chinese soft-shell turtle complex, we sequenced ca 900 bp domain of the mitochondrial ND4 gene for 347 specimens collected from Japan, Taiwan, and the continent (including the southern part [Hong Kong], eastern part [Shanghai], and the northern part [Russian Far-east and Korea]).
As a result, 42 haplotypes were recognized, and these were grouped into three clades supposedly corresponding to Pelodiscus japonicus (PJ), P. sinensis (PS), and P. paviformes (PP). Considering their geographic ranges and geographic patterns of haplotype diversity, PJ and PS seemed to be native to Japan, and the southern and eastern parts of the continent and Taiwan, respectively, although they also occurred, respectively, in the northern part of the continent and Japan, presumably as a result of artificial introduction.
Alletic analysis for 10 microsatellite loci explicitly indicated frequent occurrences of introgressions from exotic to native individuals.
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