RNA-Seq转录组分析和OsEBS的演变,这是一种涉及到在米饭中增强每小的尖头数量的基因
Fuan Niu1,2, Mingyu Liu1, Shiqing Dong1
1State Key Laboratory of Genetic Engineering and MOE Engineering Research Center of Gene Technology, School of Life Sciences, Fudan University, Shanghai 200438, China.
International journal of molecular sciences
|June 28, 2023
概括
米基因OsEBS通过调节auxin运输通路来增强每的尖子数量 (SNP). 它的进化也影响了米的化和亚种的分化,为高产米育种提供了洞察力.
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:
- 每个子的尖子数 (SNP) 是大米产量的关键决定因素.
- 已知米基因增强生物质和子数量 (OsEBS) 可以改善SNP和产量.
- 通过OsEBS影响SNP的确切机制在很大程度上仍未被阐明.
研究的目的:
- 为了研究OsEBS介导的米SNP增加背后的分子机制.
- 分析OsEBS基因的进化轨迹及其在养大米中的作用.
- 为开发高产水品种提供理论基础.
主要方法:
- RNA测序 (RNA-Seq) 用于比较野生类型和OsEBS过度表达的米线的转录组.
- 基因因子学 (GO) 和基因和基因组的京都百科全书 (KEGG) 途径分析以确定差异表达的基因及其功能.
- 在不同子亚种和相关植物物种中对OsEBS基因家族的家族遗传学分析.
主要成果:
- 总共有5369个差异表达基因 (DEG) 被确定,其中大多数在OsEBS过度表达线下调节.
- 63个与auxin相关的基因显著下调,主要涉及auxin极运输.
- 进化分析揭示了OsEBS在印加-日文差异化中的作用,并支持了多种起源的米化模型,在OsEBS中加速进化和域损失导致新功能化.
结论:
- OsEBS通过调节极性auxin运输通路来增强大米SNP.
- OsEBS的演变在米化和亚种分歧方面发挥了重要作用.
- 了解OsEBS的功能和演变为通过育种提高大米产量提供了一个有希望的途径.
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