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Rice CHD3/Mi-2 chromatin remodeling factor RFS regulates vascular development and root formation by modulating the transcription of auxin-related genes NAL1 and OsPIN1.
Yoon, Hyeryung; Lim, Chaemyeong; Lyu, Bo; Song, Qisheng; Park, So-Yon; Kang, Kiyoon; Cho, Sung-Hwan; Paek, Nam-Chon.
Afiliación
  • Yoon H; Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.
  • Lim C; Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.
  • Lyu B; Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA.
  • Song Q; Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA.
  • Park SY; Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA.
  • Kang K; Division of Life Sciences, Incheon National University, Incheon 22012, Korea.
  • Cho SH; Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.
  • Paek NC; Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.
BMB Rep ; 2024 Jul 24.
Article en En | MEDLINE | ID: mdl-39044456
ABSTRACT
The vascular system in plants facilitates long-distance transportation of water and nutrients through the xylem and phloem, while also providing mechanical support for vertical growth. Although many genes that regulate vascular development in rice have been identified, the mechanism by which epigenetic regulators control vascular development remains unclear. This study found that Rolled Fine Striped (RFS), a Chromodomain Helicase DNA-binding 3 (CHD3)/Mi-2 subfamily protein, regulates vascular development in rice by affecting the initiation and development of primordia. The rfs mutant was found to affect auxin-related genes, as revealed by RNA sequencing and reverse transcription-quantitative PCR analysis. The transcript levels of OsPIN1 and NAL1 genes were downregulated in rfs mutant, compared to the wild-type plant. The chromatin immunoprecipitation assays showed lower levels of H3K4me3 in the OsPIN1a and NAL1 genes in rfs mutant. Furthermore, exogenous auxin treatment partially rescued the reduced adventitious root vascular development in rfs mutant. Subsequently, exogenous treatments with auxin or an auxin-transport inhibitor revealed that the expression of OsPIN1a and NAL1 is mainly affected by auxin. These results provide strong evidence that RFS plays an important role in vascular development and root formation through the auxin signaling pathway in rice.
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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: BMB Rep Asunto de la revista: BIOLOGIA MOLECULAR / BIOQUIMICA Año: 2024 Tipo del documento: Article Pais de publicación:
Buscar en Google
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PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: BMB Rep Asunto de la revista: BIOLOGIA MOLECULAR / BIOQUIMICA Año: 2024 Tipo del documento: Article Pais de publicación: