摘要
在数量性状基因定位研究中，重组自交系是一种比较有用的群体。但建立一个重组自交系群体通常是很费时的。本文讨论了就某一物种的特定杂交组合而言，建立一个重组自交系群体所需的自交代数，并提出了估计所需自交代数的方法。数值分析表明，即使将每条染色体当作１个分离单位的话，建立一个重组自交系群体所需的自交代数也比通常认为的来得多（例如，对于一个具有１０对同源染色体的物种而言，至少需要自交１１代）。因此。
The population of recombinant inbred lines (RIL) is useful for the mapping of quantitative trait loci. But producing an RIL population usually takes a long time. In this paper, the number of selfings required to produce an RIL population with regard to a specific cross combination of a species is discussed and a method for estimating the required number of selfings is proposed. It is shown that more selfings are required than usually thought (e.[KG-4〗g.[KG-4〗, at least 11 selfings are required for a species with 10 pairs of homologous chromosomes) even in the case when a chromosome instead of a locus is taken as the unit of segregation. Therefore, attention should be paid to that in practical studies.
出处
《福建农业大学学报》
CSCD
1997年第2期129-132,共4页
Journal of Fujian Agricultural University
关键词
重组自交系
单粒传
自交
数量性状基因座
recombinant inbred lines
single seed descent
selfing
quantitative trait loci
