Plant J| 中国农科院棉花所于霁雯实验室揭示MYB5 a12中的遗传变异与四倍体棉纤维的起始和伸长有关
The MYB gene family, which is predominantly composed of the R2R3-MYB family, is large and functionally diverse in plants including cotton (Gossypium hirsutum L.) (Guan et al., 2014; Tian and Zhang, 2021; Walford et al., 2011; Wan et al., 2016; Wang et al., 2019; Wu et al., 2018). In Arabidopsis, the R2R3-MYB protein AtMYB5, which belongs to the GL1 branch in the phylogenetic tree, is a component of the MYB-bHLH-WD40 protein complex that directly regulates the expression of GL2 to control the fate of seed coat outer epidermal cells and plant hairs (Gonzalez et al., 2009). However, the role of the homolog of AtMYB5 in cotton is currently unknown.
MYB 基因家族主要由 r2r3-MYB 家族构成,在植物中大型且功能多样,包括棉花(陆地棉 l.)(Guan et al. ,2014; Tian and Zhang,2021; Walford et al. ,2011; Wan et al. ,2016; Wang et al. ,2019; Wu et al. ,2018)。在拟南芥中,R2R3-MYB 蛋白 AtMYB5,属于系统发生树的 GL1分支,是 MYB-bHLH-WD40蛋白复合体的一个组成部分,该复合体直接调节 GL2的表达,以控制种皮外表皮细胞和植物毛发的命运。然而,棉花中 AtMYB5同源基因的作用目前尚不清楚。
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