A comparison of inbreeding depression in life-history and morphological traits in animals
A comparison of inbreeding depression in life-history and morphological traits in animals
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DOI：
10.1111/j.1558-5646.1999.tb04541.x
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发表时间：
1999-08-01
期刊：
影响因子：
3.3
通讯作者：
Roff, DA
中科院分区：
文献类型：
--
作者：
DeRose, MA;Roff, DA
目前的研究验证了生活史特征（与适应性密切相关）比形态特征（与适应性不太密切相关）表现出更大的近交抑制的假设。比较了生活史和形态性状的近交下降标准化系数（F与性状值线性关系的斜率）的均值和中位数斜率。生活史性状的坡度大于形态性状的坡度。在F = 0.25（全同胞交配）时，生活史性状的性状值中位数下降11.8%，而形态性状的性状值中位数下降约2.2%。
The current study tests the hypothesis that life-history traits (closely related to fitness) show greater inbreeding depression than morphological traits (less closely related to fitness). The mean and median slope of the standardized coefficient of inbreeding depression (the slope of the linear relationship between F and the trait value) for life-history and morphological traits were compared. Slopes for life-history traits were higher than those for morphological traits. At F = 0.25 (full-sibling mating), life-history traits experienced a median reduction of 11.8% in trait value, whereas morphological traits showed a depression in trait value of approximately 2.2%.