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：
10.2307/2640831
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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
目前的研究检验了这样的假设：生活史特征（与健康度密切相关）比形态特征（与健康度关系不太密切）表现出更大的近交抑制。比较生活史和形态性状的近交衰退标准化系数的平均值和中值斜率（F与性状值之间的线性关系的斜率）。生活史特征的斜率高于形态特征的斜率。当 F = 0.25（全兄弟姐妹交配）时，生活史特征的特征值中位数下降了 11.8%，而形态特征的特征值下降了约 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%.