期刊
PLANT CELL
卷 29, 期 5, 页码 984-1006出版社
OXFORD UNIV PRESS INC
DOI: 10.1105/tpc.16.00816
关键词
-
资金
- National Science Foundation [IOS-1353798]
The molecular interactions between reproductive cells are critical for determining whether sexual reproduction between individuals results in fertilization and can result in barriers to interspecific hybridization. However, it is a challenge to define the complete molecular exchange between reproductive partners because parents contribute to a complex mixture of cells during reproduction. We unambiguously defined male-and female-specific patterns of gene expression during Arabidopsis thaliana reproduction using single nucleotide polymorphism-informed RNA-sequencing analysis. Importantly, we defined the repertoire of pollen tube-secreted proteins controlled by a group of MYB transcription factors that are required for sperm release from the pollen tube to the female gametes, a critical barrier to interspecific hybridization. Our work defines the pollen tube gene products that respond to the pistil and are required for reproductive success; moreover, we find that these genes are highly evolutionarily plastic both at the level of coding sequence and expression across A. thaliana accessions.
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