对的可用性的转录组反应揭示了四状小麦化过程中适应性可塑性的标志
Alice Pieri1, Romina Beleggia2, Tania Gioia3
1Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, via Brecce Bianche, Ancona 60131, Italy.
The Plant cell
|July 26, 2024
概括
的可用性显著塑造了小麦的化,改变了基因表达和选择签名,在化阶段不同. 硬小麦对的反应更强,影响了氨基酸代谢.
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 农业科学 农业科学
背景情况:
- 农作物化涉及显著的环境变化,并驱动表型可塑性.
- 四状小麦 (Triticum turgidum L.) 亚种 (野生麦,麦, durum wheat) 代表了小麦化的关键阶段.
- 了解不同条件下的基因表达可塑性对于作物改进至关重要.
研究的目的:
- 为了研究基因表达可塑性,并在不同的可用性下识别四平状小麦亚种中的选择特征.
- 为了比较对基因表达的作用,通过初级 (野生麦到麦) 和二级 (麦到 durum小麦) 化阶段.
- 阐明的可用性在小麦化过程中的适应反应中的作用.
主要方法:
- 整合RNA-Seq数据和人口基因组学.
- 分析了三种四平状小麦亚种的32种基因型.
- 在不同的气条件下对基因表达和选择特征的评估.
主要成果:
- 基因表达对的可用性反应在化阶段有显著的变化.
- 硬小麦与和野生相比,对的基因表达反应更强.
- 初级化选择了与生物相互作用相关的基因,而二级化则专注于氨基酸代谢,特别是素.
- 在参与代谢的差异表达基因 (DEGs) 中发现了选择特征,包括谷氨酸脱酶 (GDH).
结论:
- 的可用性在塑造四状小麦的化和适应性进化中发挥了关键作用.
- 不同的化阶段与不同的选择特征和对的反应有关.
- 这些发现提供了对主要粮食作物的适应基因基础的见解,并对育种策略产生影响.
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