Polycomb Group蛋白复合体与植物春化作用

doi:10.3724/SP.J.1005.2011.00207

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HEREDITAS ›› 2011, Vol. 33 ›› Issue (3): 207-212.doi: 10.3724/SP.J.1005.2011.00207

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Polycomb group protein complex involved in plant vernalization

AN Yan-Rong, XU Jian-Bin, AN Hai-Long

The State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Taian 271018, China

Received:2010-05-21 Revised:2010-07-26 Online:2011-03-20 Published:2011-02-25
Contact: AN Yan-Rong E-mail:anyanrong2002@163.com

Abstract

Abstract: The polycomb group (PcG) proteins repress transcription of the target genes and control development by chromatin modification in plants and animals. During vernalization, the Polycomb Repressive Complex 2, containing VERNALIZATION 2 (VRN2), CLF/SWN, FIE, and MSI1, can trimethylate the lysine 27 of histone H3 in the chromtin loci of FLOWER LOCUS C (FLC), the main flowering repressor in Arabidopsis. Therefore, the transcription of FLC is repressed during vernalization and the plant was induced to flowering. Here, we review the machanism of flowering regulation mediated by PcG proteins, which is expected to be valuable to research in vernalization mechanism in cereal.

Key words: Polycomb Group, flowering, vernalization, epigenetic

AN Yan-Rong, XU Jian-Bin, AN Hai-Long. Polycomb group protein complex involved in plant vernalization[J]. HEREDITAS, 2011, 33(3): 207-212.

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Polycomb group protein complex involved in plant vernalization

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