抑制植物减数分裂重组的分子机理

doi:10.16288/j.yczz.18-165

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Hereditas(Beijing) ›› 2019, Vol. 41 ›› Issue (1): 52-65.doi: 10.16288/j.yczz.18-165

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Molecular mechanisms of meiotic recombination suppression in plants

Fan Li¹,Rongpei Yu¹,Dan Sun¹,Jihua Wang¹,Shenchong Li¹,Jiwei Ruan¹,Qinli Shan¹,Pingli Lu²,Guoxian Wang¹

^1. Flower Research Institute, Yunnan Academy of Agricultural Sciences, National Engineering Research Center for Ornamental Horticulture, Yunnan Key Laboratory for Flower Breeding, Kunming 650200, China
^2. Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200433, China

Received:2018-06-22 Revised:2018-08-31 Online:2019-01-20 Published:2018-11-21
Supported by:
[Supported by Yunnan Agricultural Joint Youth Project, the Key Research and Development (Agricultural field) Project of Yunnan Science and Technology Program (No. 2018BB010) and the Science and Technology Program of Yunnan Province (No. 2016IA001)]

Abstract

Abstract:

Meiotic recombination not only ensures the stability of chromosome numbers during the sexual reproduction in eukaryotes, but also shuffles the maternal and paternal genetic materials to generate genetic diversity in the gametes. Therefore, meiotic recombination is an important pathway for genetic diversity, which has been considered as a major driving force for species evolution and biodiversity in nature. In most eukaryotes, meiotic recombination is strictly limited, despite the large variation of physical genome size and chromosome numbers among species, but the mechanisms suppressing meiotic recombination remain elusive. Recently, several suppressors have been identified through the forward genetics screen, and revealed the functions and regulation pathways of these suppressors. In this review, we summarize the breakthrough discovery of meiotic recombination suppressors in plants based on research in Arabidopsis, with particular focus on the gene function and its regulation network to elucidate the molecular mechanisms of meiotic recombination suppression in plants.

Key words: meiosis, homologous recombination, suppressors, regulation networks

Fan Li, Rongpei Yu, Dan Sun, Jihua Wang, Shenchong Li, Jiwei Ruan, Qinli Shan, Pingli Lu, Guoxian Wang. Molecular mechanisms of meiotic recombination suppression in plants[J]. Hereditas(Beijing), 2019, 41(1): 52-65.

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