迄今已在一些植物上定位到了部分控制根构型的数量性状座位，为该性状的分子生物学改良提供了基础。
To date quantitative trait loci (QTLs) conferring root architectural characteristics have been identified in some plants, offering hopes for molecular improvement of this trait.
此外，还发现这些DG往往被定位到和产量相关的数量性状座位上，这为我们提供了潜在的杂种优势基因。
In addition, we correlated the concurrence of DG and yield-related quantitative trait loci, providing a potential group of heterosis-related genes.
本文介绍了畜禽数量性状座位及主基因的理论、定位原理、方法以及研究现状。
The theories, located principle, research methods and present situation of quantitative trait loci and major gene were summarized in the paper.
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