Domestication of rice may have changed its arbuscular mycorrhizal properties by modifying phosphorus nutrition-related traits and decreasing symbiotic compatibility

文献类型： 外文期刊

第一作者： Li, Yingwei

作者： Li, Yingwei;Chen, Hanwen;Gu, Ling;Wu, Jingwen;Zheng, Xiutan;Li, Jin-tian;Shu, Wensheng;Wang, Yutao;Fan, Zhilan;Pan, Dajian;Rosendahl, Soren

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关键词： arbuscular mycorrhizal (AM) properties; candidate domestication gene; common wild rice (Oryza rufipogon); domesticated (cultivated) rice (Oryza sativa); domestication; mycorrhizal compatibility; phosphorus nutrition-related traits

期刊名称：NEW PHYTOLOGIST （ 影响因子：8.3； 五年影响因子：10.2 ）

ISSN： 0028-646X

年卷期： 2024 年 243 卷 4 期

页码：

收录情况： SCI

摘要： Modern cultivated rice (Oryza sativa) typically experiences limited growth benefits from arbuscular mycorrhizal (AM) symbiosis. This could be due to the long-term domestication of rice under favorable phosphorus conditions. However, there is limited understanding of whether and how the rice domestication has modified AM properties. This study compared AM properties between a collection of wild (Oryza rufipogon) and domesticated rice genotypes and investigated the mechanisms underlying their differences by analyzing physiological, genomic, transcriptomic, and metabolomic traits critical for AM symbiosis.
The results revealed significantly lower mycorrhizal growth responses and colonization intensity in domesticated rice compared to wild rice, and this change of AM properties may be associated with the domestication modifications of plant phosphorus utilization efficiency at physiological and genomic levels. Domestication also resulted in a decrease in the activity of the mycorrhizal phosphorus acquisition pathway, which may be attributed to reduced mycorrhizal compatibility of rice roots by enhancing defense responses like root lignification and reducing carbon supply to AM fungi.
In conclusion, rice domestication may have changed its AM properties by modifying P nutrition-related traits and reducing symbiotic compatibility. This study offers new insights for improving AM properties in future rice breeding programs to enhance sustainable agricultural production.

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