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Epigenetic regulation of high light-induced anthocyanin biosynthesis by histone demethylase IBM1 in Arabidopsis.
Fan, Di; Wang, Xianqiang; Liu, Tingting; Liu, Huimin; Peng, Yingying; Tang, Xiaofeng; Ye, Xiao; Sun, Kuan; Yue, Yuchen; Xu, Dan; Li, Chaofeng; Luo, Keming.
Afiliación
  • Fan D; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Wang X; Key Laboratory of Eco-environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Liu T; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Liu H; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Peng Y; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Tang X; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Ye X; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Sun K; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Yue Y; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Xu D; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Li C; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
  • Luo K; Chongqing Key Laboratory of Innovative and Utilization of Tree Germplasm Resources, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, School of Life Sciences, Southwest University, Chongqing, 400715, China.
New Phytol ; 242(6): 2570-2585, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38708492
ABSTRACT
In plant species, anthocyanin accumulation is specifically regulated by light signaling. Although the CONSTITUTIVELY PHOTOMORPHOGENIC1/SUPPRESSOR OF PHYA-105 (COP1/SPA) complex is known to control anthocyanin biosynthesis in response to light, the precise mechanism underlying this process remains largely unknown. Here, we report that Increase in BONSAI Methylation 1 (IBM1), a JmjC domain-containing histone demethylase, participates in the regulation of light-induced anthocyanin biosynthesis in Arabidopsis. The expression of IBM1 was induced by high light (HL) stress, and loss-of-function mutations in IBM1 led to accelerated anthocyanin accumulation under HL conditions. We further identified that IBM1 is directly associated with SPA1/3/4 chromatin in vivo to establish a hypomethylation status on H3K9 and DNA non-CG at these loci under HL, thereby releasing their expression. Genetic analysis showed that quadruple mutants of IBM1 and SPA1/3/4 resemble spa134 mutants. Overexpression of SPA1 in ibm1 mutants complements the mutant phenotype. Our results elucidate the significance and mechanism of IBM1 histone demethylase in the epigenetic regulation of anthocyanin biosynthesis in Arabidopsis under HL conditions.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Regulación de la Expresión Génica de las Plantas / Proteínas de Arabidopsis / Epigénesis Genética / Histona Demetilasas con Dominio de Jumonji / Luz / Antocianinas Idioma: En Revista: New Phytol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Regulación de la Expresión Génica de las Plantas / Proteínas de Arabidopsis / Epigénesis Genética / Histona Demetilasas con Dominio de Jumonji / Luz / Antocianinas Idioma: En Revista: New Phytol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido