GENETIC-VARIATION IN THE OYSTER, CRASSOSTREA-VIRGINICA (GMELIN), IN RELATION TO ENVIRONMENTAL VARIATION

被引：9

作者：

ROSE, RL ^{[1
]}

机构：

[1] GEORGE MASON UNIV, DEPT BIOL, FAIRFAX, VA 22030 USA

来源：

ESTUARIES | 1984年 / 7卷 / 02期

关键词：

D O I：

10.2307/1351766

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Four polymorphic loci in 7 natural C. virginica Gmelin populations of the Chesapeake Bay [USA] were analyzed by protein-gel electrophoresis for genetic variation. Samples of about 100 each were taken in 1977 along environmental gradients from stations in the James and Potomac rivers. The distribution of genotypes at 4 loci for each of the stations was not significantly different from Hardy-Weinberg expectations. At 2 loci (Pgi and Lap-2), a pool of all 7 stations was also in equilibrium. Significant genetic differentiation between rivers was detected for 2 other loci (Pgm-1 and Lap-1), and frequency of 1 genotype (Lap-195/95) was significantly correlated with mean temperature over the water monitoring period (1972-1977).

引用

页码：128 / 132

页数：5

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