首页|Genetic and molecular mechanisms of reproductive isolation in the utilization of heterosis for breeding hybrid rice

Genetic and molecular mechanisms of reproductive isolation in the utilization of heterosis for breeding hybrid rice

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Heterosis,also known as hybrid vigor,is commonly observed in rice crosses.The hybridization of rice species or subspecies exhibits robust hybrid vigor,however,the direct harnessing of this vigor is hindered by reproductive isolation.Here,we review recent advances in the understanding of the molecular mech-anisms governing reproductive isolation in inter-subspecific and inter-specific hybrids.This review en-compasses the genetic model of reproductive isolation within and among Oryza sativa species,emphasizing the essential role of mitochondria in this process.Additionally,we delve into the molecular intricacies governing the interaction between mitochondria and autophagosomes,elucidating their signif-icant contribution to reproductive isolation.Furthermore,our exploration extends to comprehending the evolutionary dynamics of reproductive isolation and speciation in rice.Building on these advances,we offer a forward-looking perspective on how to overcome the challenges of reproductive isolation and facilitate the utilization of heterosis in future hybrid rice breeding endeavors.

Hybrid vigorReproductive isolationHybrid rice breeding

Chaolong Wang、Xiaowen Yu、Jian Wang、Zhigang Zhao、Jianmin Wan

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State Key Laboratory for Crop Genetics & Germplasm Enhancement and Utilization,Nanjing Agricultural University,Zhongshan Biological Breeding Laboratory,Nanjing,Jiangsu 210095,China

State Key Laboratory of Crop Gene Resources and Breeding,Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China

National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaJiangsu Research and Development ProgramNatural Science Foundation of Jiangsu Province,ChinaFundamental Research Funds for the Central UniversitiesJiangsu Collaborative Innovation Center for Modern Crop Production

2022YFD120080131991224U2002202BE2021360BK20200023ZJ22195020

2024

10.1016/j.jgg.2024.01.007

遗传学报
中国遗传学会 中国科学院遗传与发育生物学研究所

遗传学报

CSTPCD
影响因子：0.821
ISSN：1673-8527
年,卷(期)：2024.51(6)