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首页> 外文期刊>Soybean Genetics Newsletter >Allele contribution of parents to selected progeny from two-way crosses
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Allele contribution of parents to selected progeny from two-way crosses

机译：父母对两代杂交后代后代的等位基因贡献

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摘要

Selection for improvement of genetic traits requires genetic variation. Genetic variation within a population of progeny from a cross pollination is a function of genetic diversity between the parents. Plant breeders often use coefficient of parentageas an estimate of the genetic diversity between potential parents. However, coefficient of parentage is a probability, and does not account for unbalanced contribution of alleles from parents as a result of selection for specific traits, environmental adaptation, or random drift. Analysis using molecular markers can provide genetic distance estimates unbiased by the assumption of equal contribution from the two parents, but requires investment in time and laboratory equipment. The extent to which accuracy is improved over coefficient of parentage is unknown.
机译：选择改良遗传性状需要遗传变异。异花授粉后代种群中的遗传变异是父母之间遗传多样性的函数。植物育种者经常使用亲本系数作为潜在亲本之间遗传多样性的估计。但是，亲子系数是一个概率，它不能解决因选择特定性状，环境适应性或随机漂移而导致的父母等位基因的不平衡贡献。使用分子标记进行的分析可以提供遗传距离的估计，而不会因为两个亲本的贡献相同而受到偏见，但是需要投入时间和实验室设备。精度比亲子系数提高的程度尚不清楚。

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