花的颜色强度取决于由与Myb相关的转录因子控制的专门细胞形状
K Noda1, B J Glover, P Linstead
1Nippon Oil Company Ltd, Yamaguchi, Japan.
Nature
|June 23, 1994
概括
一个新发现的基因mixta通过调节表皮细胞形状来控制Antirrhinum majus的花颜色强度. 这种基因影响着花色素如何吸收光线,影响着花的整体色彩.
科学领域:
- 植物生物学 植物生物学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 花的颜色是由诸如素和胡卜素等颜料决定的.
- 表皮细胞的形状影响了花中的光吸收和色素强度.
- 形细胞形状被认为可以增强光吸收以获得更明亮的花色彩.
研究的目的:
- 识别影响表皮细胞形状和花色素强度的基因.
- 为了研究混合基因在Antirrhinum majus花色彩中的作用.
主要方法:
- 在Antirrhinum majus.中通过转子子标记进行基因识别.
- 混合基因的克隆和测序.
- 在混合突变的表皮细胞形态的分析.
主要成果:
- 混合基因被确定为表皮细胞在花中的分化至关重要.
- 混合突变体表现出异常,非形的表皮细胞形状.
- 混合基因编码了一种与Myb相关的蛋白质,该蛋白质参与了细胞形状的转录调节.
结论:
- 混合基因通过控制表皮细胞形态来决定花颜色强度起着重要作用.
- 与myb相关的蛋白质参与调节植物细胞形状和潜在的色素表达.
- 了解mixta的功能,可以了解花的色彩演变的遗传控制.
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