It is of critical importance for our understanding of speciation process to determine the forms of reproductive isolation and their relative importance in species divergence. Oryza nivara and O. rufipogon are direct ancestors of Asian cultivated rice and a progenitor-daughter species pair. Investigating the reproductive isolation between them provides insights into plant speciation and helps understanding of the rice domestication. Here, we quantitatively measured the major components of reprodu... 

【文章來源】：Science China（Life Sciences）. 2020,63(11)SCICSCD

【文章頁數(shù)】：11 頁

【文章目錄】：
INTRODUCTION
RESULTS
    Variation in flowering time
    Self-pollinations with and without emasculation
    Seed set of the crosses within and between populations
    Viability and fertility of F1 hybrids
    Evaluation of prezygotic and postzygotic reproductive isolation
DISCUSSION
    Prezygotic isolation is a major component contributing to reproductive isolation between O.nivara and O.rufipogon
    Asymmetrical gene flow barrier between speciesand its implications for speciation
    Fertility of self-pollinations and impact of emasculation on pollination success
MATERIALS AND METHODS
    Study populations,flowering phenology and design of crossing experiments
    Seed germination and artificial pollination
    Qualification of the strength of reproductive isolation
SUPPORTING INFORMATION


【參考文獻(xiàn)】：
期刊論文
[1]Molecular mechanisms of hybrid sterility in rice[J]. Yongyao Xie,Rongxin Shen,Letian Chen,Yao-Guang Liu.  Science China（Life Sciences）. 2019(06)
[2]Genome-wide dissection of segregation distortion using multiple inter-subspecific crosses in rice[J]. Guangwei Li,Jiye Jin,Yan Zhou,Xufeng Bai,Donghai Mao,Cong Tan,Gongwei Wang,Yidan Ouyang.  Science China（Life Sciences）. 2019(04)



本文編號(hào)：3345498