The problem of sampling families rather than populations: Relatedness among individuals in samples of juvenile brown trout Salmo trutta L
The problem of sampling families rather than populations: Relatedness among individuals in samples of juvenile brown trout Salmo trutta L
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DOI：
10.1046/j.1365-294x.1997.t01-1-00202.x
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发表时间：
1997-05-01
影响因子：
4.9
通讯作者：
Mensberg, KLD
中科院分区：
文献类型：
--
作者：
Hansen, MM;Nielsen, EE;Mensberg, KLD
在物种中表现出非随机分布的密切相关的个人，抽样的几个家庭可能会导致有偏见的估计等位基因频率的群体。本研究以两个褐鳟群体为研究对象，基于线粒体DNA和微卫星分析。在两个样本中，mtDNA单倍型频率在不同年龄组之间存在显著差异，在一个样本中，18个小于1岁的个体中有17个共享一个特定的mtDNA单倍型。相关性的估计表明，这些人最有可能代表只有三个全同胞家庭。年龄较大的鳟鱼表现出相同的单倍型一般没有密切相关。
In species exhibiting a nonrandom distribution of closely related individuals, sampling of a few families may lead to biased estimates of allele frequencies in populations. This problem was studied in two brown trout populations, based on analysis of mtDNA and microsatellites. In both samples mtDNA haplotype frequencies differed significantly between age classes, and in one sample 17 out of 18 individuals less than 1 year of age shared one particular mtDNA haplotype. Estimates of relatedness showed that these individuals most likely represented only three full-sib families. Older trout exhibiting the same haplotypes generally were not closely related.