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Int. J. Mol. Sci. 2016, 17(4), 467; doi:10.3390/ijms17040467

Restricted Gene Flow for Gadus macrocephalus from Yellow Sea Based on Microsatellite Markers: Geographic Block of Tsushima Current

1
Fisheries College, Ocean University of China, Qingdao 266003, China
2
National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama 220-6115, Japan
3
Graduate School of Fisheries Sciences, Hokkaido University, Hokkaido 041-8611, Japan
4
Fishery College, Zhejiang Ocean University, Zhoushan 316022, China
*
Author to whom correspondence should be addressed.
Academic Editor: Li Lin
Received: 8 January 2016 / Revised: 21 March 2016 / Accepted: 22 March 2016 / Published: 29 March 2016
(This article belongs to the Special Issue Fish Molecular Biology)
View Full-Text   |   Download PDF [1851 KB, uploaded 29 March 2016]   |  

Abstract

The Pacific cod Gadus macrocephalus is a demersal, economically important fish in the family Gadidae. Population genetic differentiation of Pacific cod was examined across its northwestern Pacific range by screening variation of eight microsatellite loci in the present study. All four populations exhibited high genetic diversity. Pairwise fixation index (Fst) suggested a moderate to high level of genetic differentiation among populations. Population of the Yellow Sea (YS) showed higher genetic difference compared to the other three populations based on the results of pairwise Fst, three-dimensional factorial correspondence analysis (3D-FCA) and STRUCTURE, which implied restricted gene flow among them. Wilcoxon signed rank tests suggested no significant heterozygosity excess and no recent genetic bottleneck events were detected. Microsatellite DNA is an effective molecular marker for detecting the phylogeographic pattern of Pacific cod, and these Pacific cod populations should be three management units. View Full-Text
Keywords: Pacific cod; microsatellite; genetic diversity; population genetic structure Pacific cod; microsatellite; genetic diversity; population genetic structure
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Song, N.; Liu, M.; Yanagimoto, T.; Sakurai, Y.; Han, Z.-Q.; Gao, T.-X. Restricted Gene Flow for Gadus macrocephalus from Yellow Sea Based on Microsatellite Markers: Geographic Block of Tsushima Current. Int. J. Mol. Sci. 2016, 17, 467.

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