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Genetic analysis of a backcrossed F2 progeny indicated that the segregation ratio of mutant:WT was 83:28 (3:1, P=0.96, χ2 test), in which all of the mutant phenotypes co-segregated with a T-DNA insertion event. These results suggested that smo3- D is a single-gene dominant mutant that may be caused by a T-DNA insertion. 已经筛选得到一个显性突变体，这段遗传分析是什么意思？ 回交F2代是指F2代与什么基因型回交？ 此处的F2代是怎么来的？亲本是什么，F1代是什么？ 谢谢 |
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