کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7769096 1500415 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Genetic diversity and population structure of the red stingray, Dasyatis akajei inferred by AFLP marker
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Genetic diversity and population structure of the red stingray, Dasyatis akajei inferred by AFLP marker
چکیده انگلیسی
To examine population genetic diversity and variation of the red stingray Dasyatis akajei, samples from 1 freshwater region and 6 coastal localities within its distribution range were analyzed by using amplified fragment length polymorphism (AFLP) technology. A total of 207 loci were identified by 4 primer combinations from 87 individuals, 174 of which were polymorphic (84.1%). A high level of Nei's gene diversity was observed with the overall value of 0.230 ± 0.179. No significant genealogical clusters associated with sampling sites were revealed on the UPGMA tree. Both analysis of molecular variance (AMOVA, ΦST = 0.085, P = 0.00) and pairwise FST indicated significant genetic differentiation among four marine samples. However, no particular genetic differentiation was detected between marine and the limited sampling freshwater populations (AMOVA, ΦCT = 0.056, P > 0.05). Except for the TZ vs. WZ (5.193), the gene flow estimates (Nm) demonstrated the effective immigrants were 1.918-2.976, suggesting low level dispersal between pairwise marine populations. Species-specific habits (demersal and sluggish habits) are probably responsible for the population structuring.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 51, December 2013, Pages 130-137
نویسندگان
, , , ,