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- Title
Genetic population structure of the mottled spinefoot Siganus fuscescens in Japan.
- Authors
Yagishita, Naoki; Yamaguchi, Atsuko
- Abstract
The genetic population structure of the mottled spinefoot Siganus fuscescens in Japan was examined based on partial sequences of the mitochondrial cytochrome b gene. Neighbor-joining tree analysis and the minimum spanning network of haplotypes revealed three lineages, of which two (clades A and B) contained Japanese samples. However, no genetic differentiation between geographic populations was found. Hierarchical analyses of molecular variance revealed no significant differences in population structure between the Okinawa population and the group containing five geographic populations north of Kyushu (Kyoto-Nagasaki-Shizuoka-Wakayama-Kagoshima). However, the pairwise F values between the Okinawa population and each of these five geographic populations north of Kyushu ( F = 0.0822-0.2475) were considerably higher than those between each of the five geographic populations within this group (from −0.0255 to 0.0437) and significant ( P = 0.000-0.034) when calculated for all samples in clades A and B. When calculated using the samples only in clade A, the F values between Okinawa and each of the geographic populations north of Kyushu were also significant ( F = 0.1817-0.2465, P = 0.0000-0.001). These data suggest that there is, albeit minor, genetic differentiation between the Okinawa population and the five geographic populations north of Kyushu, which may be due to restrictions on gene flow rather than phylogenetic signal.
- Subjects
SIGANUS; CYTOCHROME b; ANIMAL genetics; CELL differentiation; FISHERIES
- Publication
Fisheries Science, 2016, Vol 82, Issue 2, p289
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1007/s12562-015-0964-6