Genetic differentiation and gene flow of two sparidae subspecies, Diplodus sargus sargus and Diplodus sargus cadenati in Atlantic and south-west Mediterranean populations

被引：10
|
作者：
Gonzalez-Wanguemert, M. [1 ]
Perez-Ruzafa, A. [1 ]
Garcia-Charton, J. A. [1 ]
Marcos, C. [1 ]
机构：
[1] Univ Murcia, Fac Biol, Dept Ecol & Hidrol, E-30100 Murcia, Spain
来源：
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY | 2006年 / 89卷 / 04期
关键词：
allozymes; atlantic/Mediterranean transition; dispersal; genetic structure; Mediterranean transition;
D O I：
10.1111/j.1095-8312.2006.00706.x
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A total of nine enzymes coded by 14 loci were assayed for each of six populations (from the north-eastern Atlantic and the Mediterranean) of two sea bream subspecies (Diplodus sargus sargus and Diplodus sargus cadenati). Diagnostic alleles were observed for each subspecies, although there were several common alleles. Estimates of variance in allele frequencies among samples (F-ST) revealed significant differences (P < 0.05) among both subspecies. Genetic divergence was found between Atlantic and Mediterranean samples: values for genetic distances were higher than 0.163. Furthermore, D. sargus cadenati populations displayed a higher mean weight and length than D. sargus sargus populations and significant differences in growth were found among subspecies and populations. These results are discussed in terms of levels of gene flow and its respective relationships with water circulation in the Strait of Gibraltar and geological events. (c) 2006 The Linnean Society of London, Biological Journal of the Linnean Society, 2006, 89, 705-717.
引用
收藏
页码：705 / 717
页数：13
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