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Regulation of Rice Tillering by RNA-Directed DNA Methylation at Miniature Inverted-Repeat Transposable Elements.

Molecular plant - 1 Jun 2020

Xu Le, Yuan Kun, Yuan Meng, Meng Xiangbing, Chen Min, Wu Jianguo, Li Jiayang, Qi Yijun

Abstract excerpt

Tillering is a major determinant of rice plant architecture and grain yield. Here, we report that depletion of rice OsNRPD1a and OsNRPD1b, two orthologs of the largest subunit of RNA polymerase IV, leads to a high-tillering phenotype, in addition to dwarfism and smaller panicles. OsNRPD1a and OsNRPD1b are required for the production of 24-nt small interfering RNAs that direct DNA methylation at transposable...

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PMID: 32087371
DOI: 10.1016/j.molp.2020.02.009

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