Porous borders at the wild-crop interface promote weed adaptation in Southeast Asia
Porous borders at the wild-crop interface promote weed adaptation in Southeast Asia
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DOI：
10.1038/s41467-024-45447-0
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发表时间：
2024-02-21
影响因子：
16.6
通讯作者：
Olsen，Kenneth M.
中科院分区：
文献类型：
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作者：
Li，Lin-Feng;Pusadee，Tonapha;Olsen，Kenneth M.
作物与其野生近缘种之间的高繁殖相容性可以为作物育种带来好处，但也给农业杂草进化带来风险。杂草稻是水稻的野生近亲，它侵扰稻田并在全世界范围内造成严重的农作物损失。在水稻野生祖先出现的亚洲热带地区，杂草稻可能会受到与野生物种杂交的影响。对这种现象的基因组分析非常有限。在这里，我们使用 217 个野生稻、杂草稻和栽培稻样本的全基因组序列分析表明，野生稻杂交对东南亚杂草稻的进化做出了重大贡献，一些品系通过从野生祖先基因渗入获得了杂草适应性性状。我们的研究强调了野生物种的适应性基因渗入如何促进农业杂草进化，并提供了杂草作物近缘独立进化品系中杂草平行进化的案例研究。
High reproductive compatibility between crops and their wild relatives can provide benefits for crop breeding but also poses risks for agricultural weed evolution. Weedy rice is a feral relative of rice that infests paddies and causes severe crop losses worldwide. In regions of tropical Asia where the wild progenitor of rice occurs, weedy rice could be influenced by hybridization with the wild species. Genomic analysis of this phenomenon has been very limited. Here we use whole genome sequence analyses of 217 wild, weedy and cultivated rice samples to show that wild rice hybridization has contributed substantially to the evolution of Southeast Asian weedy rice, with some strains acquiring weed-adaptive traits through introgression from the wild progenitor. Our study highlights how adaptive introgression from wild species can contribute to agricultural weed evolution, and it provides a case study of parallel evolution of weediness in independently-evolved strains of a weedy crop relative.