THE EFFECTS OF CYTOPLASMIC MALE-STERILITY ON CYTONUCLEAR DISEQUILIBRIA IN HYBRID ZONES

被引：10

作者：

CELLINO, ML

ARNOLD, J

机构：

[1] UNIV GEORGIA, DEPT GENET, ATHENS, GA 30602 USA

[2] UNIV GEORGIA, DEPT BOT, ATHENS, GA 30602 USA

来源：

GENETICA | 1993年 / 88卷 / 01期

关键词：

CYTOPLASMIC MALE STERILITY; CYTONUCLEAR DISEQUILIBRIA; HYBRID ZONE;

D O I：

10.1007/BF02424450

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Male sterility is studied in hybrid zones by different measures of cytonuclear disequilibria, D, D1, D2, and D3. Of particular interest are the dynamics of disequilibria as the system evolves to equilibrium. Our first model, the hybrid swarm model, yields equilibrium results identical to those observed in a model with random mating. In our second model of a hybrid zone, predictions of the sign pattern of disequilibrium values can be made based on migration values. A characteristic sign pattern may help to distinguish cytoplasmic male sterility (CMS) from other mechanisms of selection. Our simple CMS model with migration is successfully fit to cytonuclear data on a hybrid population of cottonwoods.

引用

页码：37 / 50

页数：14

共 38 条

[1] AN EPISTATIC MATING SYSTEM MODEL CAN PRODUCE PERMANENT CYTONUCLEAR DISEQUILIBRIA IN A HYBRID ZONE [J].