AUTOSOMAL SUPPRESSORS OF SEX-RATIO IN DROSOPHILA-MEDIOPUNCTATA

被引：35
|
作者：
DECARVALHO, AB [1 ]
KLACZKO, LB [1 ]
机构：
[1] UNIV ESTADUAL CAMPINAS, INST BIOL, DEPT GENET & EVOLUCAO, BR-13081970 CAMPINAS, SP, BRAZIL
来源：
HEREDITY | 1993年 / 71卷
关键词：
DROSOPHILA-MEDIOPUNCTATA; CHROMOSOMAL ANALYSIS; EVOLUTION OF SEXUAL PROPORTION; FISHERS PRINCIPLE; SEX-RATIO; SUPPRESSORS OF MEIOTIC DRIVE;
D O I：
10.1038/hdy.1993.174
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
The sex-ratio trait has been described as the production of progenies with excess of females due to X-linked meiotic drive in the parental males. This trait has a variable expression in Drosophila mediopunctata. We describe here the existence and chromosomal localization of autosomal suppressors of sex-ratio in this species. There are at least four such genes (one on each major autosome) and the strongest effect.is localized on chromosome IV. These genes possibly result from the operation of 'Fisher's Principle'; a mechanism of Natural Selection leading to a 1:1 sex ratio.
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页码：546 / 551
页数：6
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