| Literature DB >> 28565151 |
Margaret Mulvey1, Gwen P Keller1, Gary K Meffe1.
Abstract
Eastern mosquitofish (Gambusia holbrooki) were reared from birth to 10 wk of age at 25°C and 32°C. Relationships of growth, time to maturity, and developmental stability to isozyme genotype were used to examine the hypothesis that more heterozygous individuals should exhibit superior performances, especially under thermally stressful (32°C) conditions. More heterozygous fish grew faster than homozygous individuals, especially at 32°C. Significant differences in time to maturity were detected among allozyme genotypes but not with heterozygosity. Multiple-locus heterozygosity was negatively related to fluctuating asymmetry. Thus, life-history traits were affected by both multiple-locus heterozygosity and single-locus genotype. © 1994 The Society for the Study of Evolution.Entities:
Keywords: Allozymes; Gambusia holbrooki; Poeciliidae; heterozygosity; life history; stress; temperature
Year: 1994 PMID： 28565151 DOI： 10.1111/j.1558-5646.1994.tb02216.x
Source DB: PubMed Journal: Evolution ISSN： 0014-3820 Impact factor: 3.694