NATURAL-SELECTION AND THE HERITABILITY OF FITNESS COMPONENTS
NATURAL-SELECTION AND THE HERITABILITY OF FITNESS COMPONENTS
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DOI：
10.1038/hdy.1987.113
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发表时间：
1987-10-01
期刊：
影响因子：
3.8
通讯作者：
ROFF, DA
中科院分区：
文献类型：
--
作者：
MOUSSEAU, TA;ROFF, DA
假设与健身密切相关的性状一般具有较低的遗传力比性状更松散地与健身进行了测试使用1120狭义遗传力估计野生，远交动物种群，收集从已发表的记录。我们的研究结果表明，生活史性状一般具有较低的遗传力比形态性状，和行为和生理性状的平均值，中位数和累积频率分布的生活史和形态性状之间的中间。这些发现与Fisher（1930，1958）的自然选择基本定理和法尔科纳（1960，1981）的流行解释是一致的，但也表明，即使对于被认为处于强选择下的性状，在自然群体中也保持着高遗传力。它还发现，外温动物的形态特征的遗传率显着低于它是内温动物，这可能部分是由于生活史和身体大小之间的强相关性为许多外温动物。
The hypothesis that traits closely associated with fitness will generally possess lower heritabilities than traits more loosely connected with fitness is tested using 1120 narrow sense heritability estimates for wild, outbred animal populations, collected from the published record. Our results indicate that life history traits generally possess lower heritabilities than morphological traits, and that the means, medians, and cumulative frequency distributions of behavioural and physiological traits are intermediate between life history and morphological traits. These findings are consistent with popular interpretations of Fisher''s (1930, 1958) Fundamental Theorem of Natural Selection, and Falconer (1960, 1981), but also indicate that high heritabilities are maintained within natural populations even for traits believed to be under strong selection. It is also found that the heritability of morphological traits is significantly lower for ectotherms than it is for endotherms which may in part be a result of the strong correlation between life history and body size for many ectotherms.