کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1352633 980582 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessing genetic diversity of populations of topmouth culter (Culter alburnus) in China using AFLP markers
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Assessing genetic diversity of populations of topmouth culter (Culter alburnus) in China using AFLP markers
چکیده انگلیسی

Genetic diversity of five wild populations and a cultured population of topmouth culter (Culter alburnus) was investigated using amplified fragment length polymorphism (AFLP). A total of 373 reproducible bands amplified with seven AFLP primer combinations were obtained from 163 fish. The percentage of polymorphic loci ranged widely from 37.0% to 69.2% within distinct populations. The cultured population appeared to have a lower level of polymorphism (37.0%), gene diversity (0.121 ± 0.188) and Shannon's Information index (0.183 ± 0.263) than the wild populations. Analysis of molecular variance (AMOVA) revealed that average FST value overall loci was 0.2671, and the percentage of variation within population (73.29%) was larger than among populations (26.71%) (P < 0.01). The six populations were clustered into two major clades with UPGMA. The results from analysis of population pairwise gene flow indicated moderate gene flow among populations. Our study indicated that the genetic diversity of the cultured population was reduced compared with the wild populations. Geographic isolation, habitat, and artificial selection all may have played important roles in population differentiation. The information may be beneficial to future broodstock selection and defining conservation management for the different populations of topmouth culter.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 35, Issue 10, October 2007, Pages 662–669
نویسندگان
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