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甜瓜茎蔓无刚毛与光滑无毛性状的遗传关系分析

China Cucurbits and Vegetables(2006)

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Abstract
利用甜瓜茎蔓无刚毛突变体与茎蔓光滑无毛突变体进行杂交,对F1,BC1,BC2,F2代植株茎蔓性状观察统计发现:F1代表现茎蔓正常有刚毛;BC1代植株性状表现为茎蔓正常有刚毛、茎蔓无刚毛;BC2代植株性状表现为茎蔓正常有刚毛、茎蔓光滑无毛,其分离比值均接近1∶1;F2代植株性状表现为茎蔓正常有刚毛、茎蔓无刚毛、茎蔓光滑无毛3种类型,经X2检验符合9∶3∶4的分离规律,说明茎蔓无刚毛基因和茎蔓光滑无毛基因表现为非等位基因,甜瓜茎蔓光滑无毛基因对无刚毛基因存在隐性上位作用。
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Key words
Hairless,Melon,Glabrous
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