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MYB61 is Regulated by GRF4 and Promotes Nitrogen Utilization and Biomass Production in Rice
Yihong Gao, Zuopeng Xu, Lanjun Zhang, Shance Li, Shaogan Wang, Hanlei Yang, Xiangling Liu, Dali Zeng , Qiaoquan Liu , Qian Qian , Baocai Zhang & Yihua Zhou
Nature Communications
Abstract
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.
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DOI:10.1038/s41467-020-19019-x |
论文题目: |
MYB61 is Regulated by GRF4 and Promotes Nitrogen Utilization and Biomass Production in Rice |
英文论文题目: |
MYB61 is Regulated by GRF4 and Promotes Nitrogen Utilization and Biomass Production in Rice |
第一作者: |
Yihong Gao, Zuopeng Xu, Lanjun Zhang, Shance Li, Shaogan Wang, Hanlei Yang, Xiangling Liu, Dali Zeng , Qiaoquan Liu , Qian Qian , Baocai Zhang & Yihua Zhou |
英文第一作者: |
Yihong Gao, Zuopeng Xu, Lanjun Zhang, Shance Li, Shaogan Wang, Hanlei Yang, Xiangling Liu, Dali Zeng , Qiaoquan Liu , Qian Qian , Baocai Zhang & Yihua Zhou |
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2020-10-15 |
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摘要: |
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. |
英文摘要: |
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. |
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Nature Communications |
英文刊物名称: |
Nature Communications |
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其它备注: |
Yihong Gao, Zuopeng Xu, Lanjun Zhang, Shance Li, Shaogan Wang, Hanlei Yang, Xiangling Liu, Dali Zeng , Qiaoquan Liu , Qian Qian , Baocai Zhang & Yihua Zhou. MYB61 is Regulated by GRF4 and Promotes Nitrogen Utilization and Biomass Production in Rice. Nature Communications. DOI:10.1038/s41467-020-19019-x |
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