棉花Actin结合蛋白基因(GhVLN1)的克隆与功能分析

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棉花是由胚珠表皮细胞经过起始、伸长、次生加厚和成熟四个完全不同但又部分重叠的发育阶段发育而成的单细胞纤维,在此过程中,纤维细胞伸长了1000~3000倍。细胞骨架的重排及其动态变化为细胞的快速扩张提供网络结构支撑,运送营养物质和进行信号传递。因此,细胞骨架是棉花纤维发育重要分子机制之一。李氏无纤维(Ligon lintless-1:Li-1)是一种超短纤维突变体,纤维细胞过早退化并停止伸长,是研究棉花纤维伸长机制的理想材料。本实验室曾以Li-1和其野生型的近等基因系TM-1(WT)为材料,分
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