取决于的蛋白质激酶CmaCPK4调节了南瓜 (Cucurbita maxima D.) 的性别决定
Chaojie Wang1,2, Yunli Wang1,2, Guichao Wang1,2
1Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Northeast Region), Ministry of Agriculture and Rural Affairs/Northeast Agricultural University, Harbin 150030, China.
Plant physiology
|December 19, 2024
概括
的性别决定是由CmaCPK4基因调节的. 这种基因通过影响乙烯生产来影响雌性花的比例,从而提供了关于南瓜子女的洞察力.
科学领域:
- 植物遗传学 植物遗传学
- 分子生物学分子生物学
- 农业科学 农业科学
背景情况:
- 黄瓜产量与雌性性有关,即雌性花与雄性花的比例.
- 作为一种具有高度女性性的特征,subgynoecy对南瓜的调节机制了解甚少.
研究的目的:
- 了解南瓜 (Cucurbita maxima D.) 中子的遗传调节.
- 识别控制子性特征的基因并阐明其在性别决定中的作用.
主要方法:
- 大量分离分析与全基因组再测序.
- 分子标记器链接分析绘制SG1位置图.
- 基因序列分析和异质基因表达.
主要成果:
- 一个衰退的位置,SG1,控制subgynoecy被映射到染色体2.
- 的依赖的蛋白激酶基因CmaCPK4被确定为候选基因.
- CmaCPK4的表达因逆转移子插入而升高,增加雌性花比例和乙烯含量.
- 过度表达CmaCPK4增加了黄瓜中的雌性花比例.
- CmaCPK4与CmaACS5和CmaACS7相互作用,增强乙烯生产并影响性别确定.
结论:
- 在南瓜的性别决定中,CmaCPK4基因起着至关重要的作用.
- 该CmaCPK4-CmaACS5/CmaACS7模块调节的乙烯诱导的性别确定.
- 研究结果为控制女性性和提高南瓜产量提供了洞察力.
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