MYB61 is regulated by GRF4 and promotes nitrogen utilization and biomass production in rice.
MYB61 is regulated by GRF4 and promotes nitrogen utilization and biomass production in rice.
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DOI：
10.1038/s41467-020-19019-x
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发表时间：
2020-10-15
影响因子：
16.6
通讯作者：
Zhou Y
中科院分区：
文献类型：
--
作者：
Gao Y;Xu Z;Zhang L;Li S;Wang S;Yang H;Liu X;Zeng D;Liu Q;Qian Q;Zhang B;Zhou Y
氮(N)是一种常量营养素，能促进碳(C)代谢和植物生长，导致生物量积累。氮素利用效率(NUE)和生物质产量之间的分子联系尚不清楚。本文通过数量性状基因座分析和图位克隆，揭示了MYB61基因座的自然变异导致了水稻亚种间氮素利用和纤维素生物发生的差异。MYB61是一种调节纤维素合成的转录因子，它由一个已知的NUE生长调节因子4(GRF4)直接调控，GRF4协调纤维素生物量的生产和氮素的利用。MYB61的变异是在水稻驯化过程中选择的。在氮素供应减少的情况下，MYB61的籼型等位基因表现出较强的转录能力，导致较高的氮效率和较高的籽粒产量。因此，我们的研究揭示了碳代谢如何与氮素吸收有关，并可能为可持续农业提供减少氮素使用的机会。氮素利用效率(NUE)和生物质产量之间的分子联系尚不清楚。在这里，作者表明，水稻和水稻亚种之间的NUE和纤维素生物发生的差异可以用MYB61基因座的变异来解释，该基因由NUE调节器GRF4调控。
Nitrogen (N) is a macronutrient that boosts carbon (C) metabolism and plant growth leading to biomass accumulation. The molecular connection between nitrogen utilization efficiency (NUE) and biomass production remains unclear. Here, via quantitative trait loci analysis and map-based cloning, we reveal that natural variation at the MYB61 locus leads to differences in N use and cellulose biogenesis between indica and japonica subspecies of rice. MYB61, a transcriptional factor that regulates cellulose synthesis, is directly regulated by a known NUE regulator GROWTH-REGULATING FACTOR4 (GRF4), which coordinates cellulosic biomass production and N utilization. The variation at MYB61 has been selected during indica and japonica domestication. The indica allele of MYB61 displays robust transcription resulting in higher NUE and increased grain yield at reduced N supply than that of japonica. Our study hence unravels how C metabolism is linked to N uptake and may provide an opportunity to reduce N use for sustainable agriculture. The molecular connection between nitrogen utilization efficiency (NUE) and biomass production is unclear. Here, the authors show that differences in NUE and cellulose biogenesis between rice indica and japonica subspecies can be explained by variation at the MYB61 locus, which is regulated by the NUE regulator GRF4.
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影响因子：
3.6
作者：
Easlon HM;Bloom AJ
通讯作者：
Bloom AJ
调节植物生长代谢协调以实现可持续农业
影响因子：
64.8
作者：
Li S;Tian Y;Wu K;Ye Y;Yu J;Zhang J;Liu Q;Hu M;Li H;Tong Y;Harberd NP;Fu X
通讯作者：
Fu X
通过改善中国集约农业系统的氮肥管理来降低环境风险
DOI：
10.1073/pnas.0813417106
发表时间：
2009-03-03
影响因子：
11.1
作者：
Ju, Xiao-Tang;Xing, Guang-Xi;Zhang, Fu-Suo
通讯作者：
Zhang, Fu-Suo
影响因子：
7.2
作者：
Krupkova, Eva;Immerzeel, Peter;Schmuelling, Thomas
通讯作者：
Schmuelling, Thomas
影响因子：
10.7
作者：
Kumar, Sudhir;Stecher, Glen;Tamura, Koichiro
通讯作者：
Tamura, Koichiro