Microsatellite variation reveals fine-scale genetic structure of masu salmon, Oncorhynchus masou, within the Atsuta River

被引：27

作者：

Kitanishi, S. ^{[1
]}

Yamamoto, T. ^{[2
]}

Higashi, S. ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600810, Japan

[2] Nippon Vet & Life Sci Univ, Fac Vet Sci, Tokyo, Japan

来源：

ECOLOGY OF FRESHWATER FISH | 2009年 / 18卷 / 01期

基金：

日本学术振兴会;

关键词：

genetic structure; within river; anadromous; microsatellite; masu salmon; POPULATION-STRUCTURE; ATLANTIC SALMON; BROWN TROUT; CHINOOK SALMON; F-STATISTICS; FRESH-WATER; TRUTTA L; DIFFERENTIATION; DIVERSITY; HABITAT;

D O I：

10.1111/j.1600-0633.2008.00325.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

To describe in detail the population genetic structure of masu salmon Oncorhynchus masou, seven anadromous populations in the Atsuta River were investigated by analysis of eight polymorphic microsatellite loci. Exact test and genetic differentiation (F-ST) revealed that significant differentiation was observed at the within-river scale. Principal components analysis revealed that the spatial pattern of genetic composition was related to geographical location of each population. Furthermore, a significant correlation was observed between genetic differentiation and geographical distance, indicating that dispersal is less likely to occur between distant populations. The results of this study imply that masu salmon have potential to show clear genetic structure at the microgeographical scale (21 km) due to precise homing behaviour.

引用

页码：65 / 71

页数：7

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