野生作物接口的多孔边界促进了东南亚的杂草适应
Lin-Feng Li1,2,3, Tonapha Pusadee4, Marshall J Wedger3
1State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, China.
Nature communications
|February 21, 2024
概括
野生大米的杂交方式极大地影响了东南亚杂草大米的进化. 野生亲属的这种适应性侵入引入了杂草适应性特征,突出了作物亲属的风险和并行进化.
科学领域:
- 遗传学 遗传学 是一个
- 进化生物学 进化生物学
- 农业科学 农业科学
背景情况:
- 杂草大米 (野生作物的亲属) 导致全球作物损失显著.
- 农作物和野生亲属之间的杂交可能会影响杂草的进化.
- 野生大米和杂草大米杂交的基因组研究有限.
研究的目的:
- 调查野生大米与其祖先之间的杂交在东南亚杂草大米进化中的作用.
- 为了确定从野生大米进入杂草大米种群的适应性特征.
主要方法:
- 对217个野生,杂草和栽培大米样本进行全基因组序列分析.
- 基因组比较以识别内进事件和适应性特征获得.
主要成果:
- 野生大米的杂交对东南亚杂草大米的进化做出了重大贡献.
- 特定的杂草大米菌株通过从野生祖先的内侵获得了杂草适应性特征.
- 在独立进化的杂草大米菌株中,杂草的平行进化的证据.
结论:
- 野生物种的适应性侵入是农业杂草进化的重要驱动因素.
- 了解这些遗传相互作用对于管理杂草和类似的农业害虫至关重要.
- 这项研究为研究作物野生相对基因流动的进化影响提供了一个模型.
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