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
作者： Li, Yingwei 1 ; Chen, Hanwen 1 ; Gu, Ling 1 ; Wu, Jingwen 1 ; Zheng, Xiutan 1 ; Fan, Zhilan 2 ; Pan, Dajian 2 ; Li, Jin-tian 1 ; Shu, Wensheng 1 ; Rosendahl, Soren 3 ; Wang, Yutao 1 ;
作者机构： 1.South China Normal Univ, Sch Life Sci, Guangdong Prov Key Lab Biotechnol Plant Dev, Guangzhou Key Lab Subtrop Biodivers & Biomonitorin, Guangzhou 510631, Peoples R China
2.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Peoples R China
3.Univ Copenhagen, Dept Biol, DK-2100 Copenhagen, Denmark
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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