MITOCHONDRIAL-DNA EVOLUTION IN EXPERIMENTAL POPULATIONS OF DROSOPHILA-SUBOBSCURA

被引：71

作者：

FOS, M ^{[1
]}

DOMINGUEZ, MA ^{[1
]}

LATORRE, A ^{[1
]}

MOYA, A ^{[1
]}

机构：

[1] UNIV VALENCIA, FAC BIOL, DEPT GENET, DOCTOR MOLINER 50, E-46100 BURJASSOT, SPAIN

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1990年 / 87卷 / 11期

关键词：

fitness of mtDNA; natural selection; neutral haplotypes; nuclear-cytoplasmic coadaptation;

D O I：

10.1073/pnas.87.11.4198

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

When two mitochondrial DNA (mtDNA) haplotypes of Drosophila subobscura compete in experimental populations with discrete generations, one or the other approaches fixation, depending on the nuclear background with which they are associated. The approach to fixation, however, is strongly dependent on the effective number of females in the population, N(f). Whether or not the ultimate fate of a given mtDNA haplotype is determined by random genetic drift depends on N(f) as well as on the relative fitnesses. Our experimental results show that the mtDNA polymorphisms observed in natural populations are affected by interactions among nuclear polymorphisms, random genetic drift, and direct selection on the mtDNA haplotypes.

引用

页码：4198 / 4201

页数：4

共 19 条

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