杂种优势
杂合子丢失
种内竞争
生物
拟南芥
混合的
基因
等位基因
倍性
遗传学
植物
突变体
动物
作者
Takafumi Yamaguchi,Naoya Sugi,Yoshihisa Nojima,Tetsuyuki Entani,Hiroshi Shiba
摘要
ABSTRACT Intraspecific hybrids of Arabidopsis sometimes display heterosis. However, allelic variation of flowering repressor genes causes late flowering in F1, which might distort the potential heterosis effect due to prolonged vegetative growth. Here, overexpression of flowering gene FT synchronized flowering and eliminated growth differentials between parental and F1. These findings indicate the possibility of quantitatively demonstrating the inherent heterosis caused by heterozygosity.
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