Gene diversity analysis in natural populations and cultured stocks of turbot (Scophthalmus maximus L)

被引：38

作者：

Bouza, C ^{[1
]}

Sanchez, L ^{[1
]}

Martinez, P ^{[1
]}

机构：

[1] UNIV SANTIAGO DE COMPOSTELA,DEPT BIOL FUNDAMENTAL,AREA GENET,FAC VET,LUGO 27002,SPAIN

来源：

ANIMAL GENETICS | 1997年 / 28卷 / 01期

关键词：

gene diversity analysis; fluctuating asymmetry; Scophthalmus maximus; turbot;

D O I：

10.1111/j.1365-2052.1997.00070.x

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The genetic variability of eight fish-farm and three natural populations of turbot was studied by electrophoretic analysis of 35 enzymatic loci. The results showed low genetic variability in natural populations of turbot (H-T = 0.029 +/- 0.013) in comparison with other flatfish species. Great genetic similarity was revealed among the natural populations studied, which indicates high rates of gene flow in this species. The hatchery stocks showed less genetic variation than the wild populations analysed, which suggests genetic drift phenomena involved in the foundation and management of broodstocks. In addition, the heterozygosity differences detected among the hatchery stocks analysed are correlated with inverted levels of fluctuating asymmetry, which supports the existence of inbreeding depression phenomena in turbot culture.

引用

页码：28 / 36

页数：9

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