Genetic evidence for female-biased dispersal in the bullfrog, Rana catesbeiana (Ranidae)

被引：66

作者：

Austin, JD ^{[1
]}

Dávila, JA ^{[1
]}

Lougheed, SC ^{[1
]}

Boag, PT ^{[1
]}

机构：

[1] Queens Univ, Dept Biol, Kingston, ON K7L 3N6, Canada

来源：

MOLECULAR ECOLOGY | 2003年 / 12卷 / 11期

关键词：

amphibian; assignment index; F-statistics; isolation-by-distance; mating system; microsatellites;

D O I：

10.1046/j.1365-294X.2003.01948.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Sex-biased dispersal is an important but unexplored area of amphibian ecology. We predicted female-biased dispersal in the bullfrog (Rana catesbeiana) based on aspects of their mating system and tested this prediction using data from seven polymorphic DNA microsatellite loci. Allelic (F-statistics) and genotypic [assignment index, (AIc)] frequencies from nine Ontario populations support our prediction, although significant sex differences in inbreeding and variance of AIc were not detected. The diversity of mating systems found in amphibians represents an important avenue for investigating the relationship between reproductive systems, dispersal and phylogeny.

引用

页码：3165 / 3172

页数：8

共 77 条

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