农业科学研究2012，Vol.33Issue(2)：21-26,6.
用春小麦株高性状自交后代遗传变异推导和检验多基因假说
The genetic variation of the spring wheat height deducing and testing multiple-factor hypothesis
摘要
Abstract
Genetic variation was the focal point of the researches in quantitative genetics. The multiple- factor hypothesis was the basis of quantitative genetics. The key point of the multiple-factor hypothesis was the cumulative action of each gene effect. In the conditions of the additive inheritance model and Mendel law, which answered for the law of independent assortment, and with no linkage inheritance or gene interaction, with the technique of dihaploid,analysis of the cumulative action of the genetic variation had two results. ①The cumulative action was accorded with the algebraic sum（A=B＋C）in the genetic distance to express the F2 value of the genetic variation. ②The cumulative action was accorded with the quadratic sum（ ∑a2=∑b2＋∑c2 ）in the genetic variance to express the F2 value of the genetic variation, t-test proved that the two results were correct. The cumulative action was advanced on the basis of the multiple-factor hypothesis. The key point of the cumulative action was that the effect of the different allele was algebraic sum（A=B＋C）, was not the quadratic sum（∑a2=∑b2＋∑c2）. In the genetic variance to express the F2 value of the genetic variation the cumulative aetion and the muhiple-faetor hypothesis was not accorded.关键词
春小麦/双单倍体/遗传均差/遗传方差/累加性Key words
spring wheat/dihaploid/genetic average deviation/genetic variance/cumulative action分类
生物科学引用本文复制引用
张晓岗..用春小麦株高性状自交后代遗传变异推导和检验多基因假说[J].农业科学研究,2012,33(2):21-26,6.基金项目
致谢：本实验材料是由宁夏农林科学院董建立先生提供,在此表示最诚挚的谢意! （）
