Epigenetic Regulation Of Antagonistic Receptors C.onfers Rice Blast Resistance W ith Yield Balance
文献类型： 外文期刊
作者： Deng, YW; Zhai, KR; Xie, Z; Yang, DY; Zhu, XD; Liu, JZ; Wang, X; Qin, P; Yang, YZ; Zhang, GM; Li, Q; Zhang, JF; Wu, SQ; Milazzo, J; Mao, BZ; Wang, ET; Xie, H; Tharreau, D; He, ZH
作者机构：
期刊名称： SCIENCE
ISSN： 0036-8075
年卷期： 2017 年 355 卷 6328 期
页码：
收录情况： JCR（2021版）
摘要： Crop breeding aims to balance disease resistance with yield;; however, single resistance (R) genes can lead to resistance breakdown, and R gene pyramiding may affect growth fitness. Here we report that the rice Pigm locus contains a cluster of genes encoding nucleotide-binding leucine-rich repeat (NLR) receptors that confer durable resistance to the fungus Magnaporthe oryzae without yield penalty. Among these NLR receptors, PigmR confers broad-spectrum resistance, whereas PigmS competitively attenuates PigmR homodimerization to suppress resistance. PigmS expression, and thus PigmR-mediated resistance, are subjected to tight epigenetic regulation. PigmS increases seed production to counteract the yield cost induced by PigmR. Therefore, our study reveals a mechanism balancing high disease resistance and yield through epigenetic regulation of paired antagonistic NLR receptors, providing a tool to develop elite crop varieties.
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