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利用显性遗传雄性不育进行混和半姊妹家系轮回选择的方案已经有人作过报道。本文的目的是介绍显性遗传雄性不育的S_1家系轮回选择方案及其期望选择效应。在显性雄性不育方案中,由于S_1家系完全可育,若不人工去雄和授粉,入选的S_1家系间就不可能杂交。为解决这个问题,笔者提出了多种S_1家系轮回选择方案,即以入选的S_1家系与一个雄性不育等位基因源(仅作为一种杂交工具)进行杂交。这些方策包括利用基础群体作为雄性不育等位基因源的S_1家系轮回选择,以及分别利用半姊妹宋系或全姊妹家系作为雄性不育等位基因源,进行S_1家系与半姊妹家系或S_1家系与全姊妹家系相结合的轮回选择。显性遗传难性不育轮回选择方案中S_1家系选择强度及每年的选择效应一般都比混合轮回选择或半姊妹家系轮回选择的要大。由于S_1家系完全可育,排除了雄性不育表现型多效性的影响。
It has been reported that the use of dominant genetic male sterility for the hybrid selection of half-sib families for round-robin selection has been reported. The purpose of this paper is to introduce the reincarnation scheme and its expected selection effect in dominant S 1 lineage male sterility. In dominant male sterility programs, because the S_1 pedigree is completely fertile, crossbreeding of the selected S_1 pedigree is impossible without maleation and pollination. In order to solve this problem, the author proposed a variety of S 1 family reincarnation options, namely crossing the selected S 1 family with a male sterile allele source (only as a hybridization tool). These strategies include the S 1 pedigree selection using the basic population as the male sterility allele and the S 1 pedigree and the semi-sister or S 1 pedigree using the half sibling song family or the whole sibling family as the male-sterile allele Reincarnation with an all-sibling family. The selection intensity of the S 1 family and the annual selection effect of the dominant genetic predisposition to infertility are generally greater than that of the mixed-cycle selection or the semi-sister selection. Since the S 1 family is completely fertile, the effect of phenotypic pleiotropism on male sterility was ruled out.