Abstract
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.
基金项目
National Key R&D Program of China(2022YFD1200801)
National Natural Science Foundation of China(31991224)
National Natural Science Foundation of China(U2002202)
Jiangsu Research and Development Program(BE2021360)
Natural Science Foundation of Jiangsu Province,China(BK20200023)
Fundamental Research Funds for the Central Universities(ZJ22195020)
Jiangsu Collaborative Innovation Center for Modern Crop Production()
NETL
NSTL
万方数据