作者
Yuebin Wang, Wenqiang Li, Luxi Wang, Jiali Yan, Gang Lu, Ning Yang, Jieting Xu, Yuqing Wang, Songtao Gui, Gengshen Chen, Shuyan Li, Chengxiu Wu, Tingting Guo, Yingjie Xiao, Marilyn L Warburton, Alisdair R Fernie, Thomas Dresselhaus, Jianbing Yan
发表日期
2022/8/3
期刊
Nature Communications
卷号
13
期号
1
页码范围
4498
出版商
Nature Publishing Group UK
简介
Unilateral cross incompatibility (UCI) occurs between popcorn and dent corn, and represents a critical step towards speciation. It has been reported that ZmGa1P, encoding a pectin methylesterase (PME), is a male determinant of the Ga1 locus. However, the female determinant and the genetic relationship between male and female determinants at this locus are unclear. Here, we report three different types, a total of seven linked genes underlying the Ga1 locus, which control UCI phenotype by independently affecting pollen tube growth in both antagonistic and synergistic manners. These include five pollen-expressed PME genes (ZmGa1Ps-m), a silk-expressed PME gene (ZmPME3), and another silk-expressed gene (ZmPRP3), encoding a pathogenesis-related (PR) proteins. ZmGa1Ps-m confer pollen compatibility. Presence of ZmPME3 causes silk to reject incompatible pollen. ZmPRP3 promotes incompatibility …
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