论文部分内容阅读
采用数量遗传方法,选用两个保绿性强的玉米自交系(齐319、178)和两个保绿性差的自交系(Mo17、BM)组配4套F1、F2和回交群体,研究保绿性的遗传规律,分析保绿性的基因效应。4套组合6个世代的保绿鉴定结果表明,玉米叶片保绿基因的加性、显性和互作效应普遍存在。玉米保绿性状广义遗传力变化范围为59.93%~76.82%,加性方差占遗传方差的比值变化范围为40.70%~60.10%。以齐319为保绿亲本的组合至少存在两对保绿基因,而以178为保绿亲本的组合至少由一对基因控制。
Four F1, F2 and backcross populations were selected from two inbred lines of maize (Qi 319,178) and two poorly maintained green inbred lines (Mo17, BM) by quantitative genetic methods. Study of the genetic law of green, green gene analysis of the effect. Four sets of combinations of Paul Green identification results of six generations showed that corn green leaf gene additive, dominant and interaction effect ubiquitous. The broad-leaved heritability of green-keeping traits varied from 59.93% to 76.82%, and the additive variance to genetic variance ranged from 40.70% to 60.10%. There are at least two pairs of green genes in the combination of Qi 319 for the green parents, and the combination of 178 for the green parents is controlled by at least one pair of genes.