Meta-analyses of the association between multilocus heterozygosity and fitness
Meta-analyses of the association between multilocus heterozygosity and fitness
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DOI:
10.2307/2410687
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发表时间:
1996-12-01
期刊:
影响因子:
3.3
通讯作者:
Britten, HB
中科院分区:
文献类型:
--
作者:
Britten, HB
Meta-analyses of published correlation coefficients between multilocus heterozygosity (MLH) and two fitness surrogates, growth rate and fluctuating asymmetry, suggested that the strength of these correlations are generally weak. A variety of plants and animals was included in the meta-analyses. A statistically homogeneous group of MLH-growth rate correlation coefficients that included both plants and animals yielded a common correlation of r(z) = 0.133. A common correlation of r(z) = -0.170 was estimated for correlations between MLH and fluctuating asymmetry in three species of salmonid fishes. These results suggest that selection, including overdominance, has at most a weak effect at allozyme loci and cast some doubt on the widely held notion that heterozygosity and individual fitness are strongly correlated.