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显性纯合两用系转育同源临保系和临保系转育同源显性纯合两用系,两者的选育策略完全不同.纯合两用系转育同源临保系是以纯合两用系可育株作轮回亲本,选显性杂合不育株作定向回交的母本,经高代定向回交,后代自交选择隐性纯合可育株即为同源临保系.临保系转育同源纯合两用系是以隐性纯合可育株作轮回父本,选单基因或双基因杂合体作定向去雄回交的母本,经高代定向回交,后代选育育性分离的株系进行兄妹交,用临保系测显性基因的纯合性而选育出同源纯合两用系.不同遗传模式下的临保系和纯合两用系同源化的选育方法有所不同.该文详细阐述了不同遗传方式下临保系和纯合两用系同源化的技术路线及其遗传模式.
Dominant homozygous dual-use lines of the same progeny and Progeny lines transplanted homologous dominant homozygous dual-use line, the two breeding strategies completely different homozygous lines of the same source Department of homozygous lines of fertile plants for the reincarnation of parents, selected dominant heterozygous sterile backcross for the female parent, the high generation of back-oriented selection, offspring self-selection recessive homozygous fertile plant that is Homology and Progeny. Progenitor system of homologous homozygous for the transfer of homologous fertile plants is recessive homozygous for reincarnation of paternal, single-gene or double gene hybrid for directed male to male back to the male, the High-generation directional backcross, offspring selection fertility segregation lines brother and sister cross, with the Department of Conservation measured dominant gene homozygosity and bred homologous homozygous dual-use lines. The methods of breeding homologous to homozygous and homozygous lines are different.This paper elaborates the technical route and its genetic mode of homologousization of both inbred lines and homozygous lines under different genetic modes.