Wen Yongxian, Wu Weiren
College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
J Genet Genomics. 2007 May;34(5):429-36. doi: 10.1016/S1673-8527(07)60047-2.
A statistical method for mapping quantitative trait loci (QTLs) underlying endosperm traits is proposed. The method is based on a genetic model containing both the direct effects and maternal effects of an endosperm QTL and on an experimental design termed two-stage hierarchical design, in which the trait information is obtained from F(3) endosperms and molecular marker information is obtained from F(2) plants and F(3) embryos (plants). Results of computer simulations indicate that the method can efficiently map endosperm QTLs and precisely estimate both the direct and maternal effects of endosperm QTLs when the sample size is sufficiently large.
提出了一种用于定位胚乳性状潜在数量性状基因座（QTL）的统计方法。该方法基于一个遗传模型，该模型包含胚乳QTL的直接效应和母体效应，并基于一种称为两阶段分层设计的实验设计，其中性状信息从F(3)胚乳中获得，分子标记信息从F(2)植株和F(3)胚（植株）中获得。计算机模拟结果表明，当样本量足够大时，该方法可以有效地定位胚乳QTL，并精确估计胚乳QTL的直接效应和母体效应。
