کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1353882 1500408 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Genetic analysis of the populations of Japanese anchovy Engraulis japonicus from the Yellow Sea and East China Sea based on mitochondrial cytochrome b sequence
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Genetic analysis of the populations of Japanese anchovy Engraulis japonicus from the Yellow Sea and East China Sea based on mitochondrial cytochrome b sequence
چکیده انگلیسی

Japanese anchovy Engraulis japonicus was not only a commercial species but also a key link in the marine food chain in the Yellow Sea and East China Sea. However, in recent years, E. japonicus experienced a deep recession caused by over fishing. Therefore, determination of population genetic structure is essential to underpin resource recovery and to aid delineating and monitoring populations for fishery management. In this study, sequence variation of a 402-bp fragment of mitochondrial cytochrome b (cyt b) gene from ten populations of E. japonicus in the Yellow Sea and East China Sea was determined, detecting 73 haplotypes. Haplotype diversities and nucleotide diversities for the ten populations ranged from 0.4706 ± 0.1177 (D) to 0.9935 ± 0.210 (WH), and from 0.0014 ± 0.0013 (D) to 0.0090 ± 0.0053 (WH), respectively. Analysis of molecular variance (AMOVA) showed no significant differences at all hierarchical levels, and almost all FST values were non-significant, indicating no significant population genetic structure in the Yellow Sea and East China Sea. Two indistinct clades with low support values were detected and the analysis of haplotype frequency distribution showed no significant geographic differences among populations. These results supported the null hypothesis that E. japonicus within the Yellow Sea and East China Sea constituted a panmictic mtDNA gene pool. Based on the present study, the existence of separate genetic stocks in the Yellow Sea and East China Sea were not detected. Strong dispersal capacity of planktonic larvae, and ocean current could be the reasons for genetic homogeneity in this species in the Yellow Sea and East China Sea.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 58, February 2015, Pages 169–177
نویسندگان
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