SEX-RATIO POLYMORPHISM IN DROSOPHILA-PSEUDOOBSCURA

被引：8

作者：

BECKENBACH, AT

机构：

来源：

AMERICAN NATURALIST | 1991年 / 137卷 / 03期

关键词：

D O I：

10.1086/285166

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

I studied "sex-ratio" (SR) genotype frequencies in two populations of Drosophila pseudoobscura from southeastern Arizona: Bear Creek Canyon and Tucson. Wild-inseminated females were collected, their fecundities measured in the laboratory, and their SR genotypes inferred by cytological analysis of their progenies. A statistically significant fecundity deficiency was observed among SR/SR females from Bear Creek Canyon. The SR frequency in the Tucson population increased at a rate consistent with the operation of meiotic drive unopposed by selection.

引用

页码：340 / 343

页数：4

共 14 条

[1] FREQUENT MULTIPLE INSEMINATION IN A NATURAL-POPULATION OF DROSOPHILA-PSEUDOOBSCURA [J].