Evolution of the PEBP gene family and selective signature on FT-like clade

doi:10.1111/jse.12199

CORC > 中国农业科学院 > 作物科学研究所

	Evolution of the PEBP gene family and selective signature on FT-like clade
	Zheng Xiaoming; Wu Fuqing; Zhang Xin; Lin Qibing; Wang Jie; Guo Xiuping; Lei Cailin; Cheng Zhijun; Zou Cheng; Wan Jianmin
刊名	Journal of Systematics and Evolution
	2016
卷号	54 期号:5 页码:502-510
关键词	adaptation duplication FT-like genes flowering time recent positive selection
ISSN号	1674-4918
DOI	10.1111/jse.12199
英文摘要	The PEBP family of proteins, which encode a phosphatidyl ethanolamine-binding protein (PEBP) domain, serve as a hub in the network of integrating environmental and developmental signals to regulate flowering in all angiosperms. To understand how PEBP duplication genes arose and evolved during plant evolution, we identified 259 genes involved in the PEBP domain from 25 species, including angiosperms, gymnosperms, and embryophytes. We found that plant PEBP genes could be divided into three monophyletic groups, including FT-like, TFL-like and MFT-like subgroups. Based on the phylogeny, FT-like and TFL-like subgroups split before the angiosperm divergence. The likelihood ratio test indicates that the FT-like clade is significantly different in K_a/K_s with TFL-like and MFT-like clades. We found this shift in mutation might be attributed to the positive selection imposed on the fourth exon of recent FT duplications. Divergent expression patterns of FT paralogs indicated that they had undergone subfunctionalization after duplication. In addition, some of the FT-like genes have been targets of selection during domestication in rice and maize, for which the flowering time is an important agronomic trait. These results imply potential recent positive selection on FT-like genes with potential to increase the prevalence of novel functional alleles leading to extensive plant flowering time diversity and adaptation to environmental changes.
语种	中文
内容类型	期刊论文
源URL	[http://ir.nais.net.cn/handle/2HMLN22E/131244]
专题	作物科学研究所
作者单位	Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081
推荐引用方式 GB/T 7714	Zheng Xiaoming,Wu Fuqing,Zhang Xin,et al. Evolution of the PEBP gene family and selective signature on FT-like clade[J]. Journal of Systematics and Evolution,2016,54(5):502-510.
APA	Zheng Xiaoming.,Wu Fuqing.,Zhang Xin.,Lin Qibing.,Wang Jie.,...&Wan Jianmin.(2016).Evolution of the PEBP gene family and selective signature on FT-like clade.Journal of Systematics and Evolution,54(5),502-510.
MLA	Zheng Xiaoming,et al."Evolution of the PEBP gene family and selective signature on FT-like clade".Journal of Systematics and Evolution 54.5(2016):502-510.