Adaptive signals of flowering time pathways in wild barley from Israel over 28 generations

doi:10.1038/s41437-019-0264-5

	Adaptive signals of flowering time pathways in wild barley from Israel over 28 generations
	Qian, Chaoju 1; Yan, Xia 2; Shi, Yong 3; Yin, Hengxia 4; Chang, Yuxiao 5; Chen, Jun 6; Ingvarsson, Par K.7; Nevo, Eviatar 8; Ma, Xiao-Fei 1
通讯作者	Nevo, Eviatar(nevo@research.haifa.ac.il) ; Ma, Xiao-Fei(maxiaofei@lzb.ac.cn)
	2020
发表期刊	HEREDITY
ISSN	0018-067X
卷号	124 期号:1 页码:62-76
摘要	Flowering time is one of the most critical traits for plants' life cycles, which is influenced by various environment changes, such as global warming. Previous studies have suggested that to guarantee reproductive success, plants have shifted flowering times to adapt to global warming. Although many studies focused on the molecular mechanisms of early flowering, little was supported by the repeated sampling at different time points through the changing climate. To fully dissect the temporal and spatial evolutionary genetics of flowering time, we investigated nucleotide variation in ten flowering time candidate genes and nine reference genes for the same ten wild-barley populations sampled 28 years apart (1980-2008). The overall genetic differentiation was significantly greater in the descendant populations (2008) compared with the ancestral populations (1980); however, local adaptation tests failed to detect any single-nucleotide polymorphism (SNP)/indel under spatial-diversifying selection at either time point. By contrast, the WFABC (Wright-Fisher ABC-based approach) that detected 54 SNPs/indels was under strong selection during the past 28 generations. Moreover, all these 54 alleles were segregated in the ancestral populations, but fixed in the descendent populations. Among the top ten SNPs/indels, seven were located in genes of FT1 (FLOWERING TIME LOCUS T1), CO1 (CONSTANS-LIKE PROTEIN 1), and VRN-H2 (VERNALIZATION-H2), which have been documented to be associated with flowering time regulation in barley cultivars. This study might suggest that all ten populations have undergone parallel evolution over the past few decades in response to global warming, and even an overwhelming local adaptation and ecological differentiation.
DOI	10.1038/s41437-019-0264-5
收录类别	SCI ; SCI
语种	英语
WOS记录号	WOS:000502333100006
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/70596
专题	中国西南野生生物种质资源库
通讯作者	Nevo, Eviatar; Ma, Xiao-Fei
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Dept Ecol & Agr Res, Key Lab Stress Physiol & Ecol Cold & Arid Reg, Lanzhou 730000, Gansu, Peoples R China 2.Nantong Univ, Sch Life Sci, Nantong 226019, Jiangsu, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species Southwest China, Kunming 650201, Yunnan, Peoples R China 4.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Qinghai, Peoples R China 5.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen 450002, Guangdong, Peoples R China 6.Zhejiang Univ, Coll Life Sci, Hangzhou 310058, Zhejiang, Peoples R China 7.Swedish Univ Agr Sci, Uppsala BioCtr, Dept Plant Biol, SE-75007 Uppsala, Sweden 8.Univ Haifa, Inst Evolut, IL-3498838 Haifa, Israel
推荐引用方式 GB/T 7714	Qian, Chaoju,Yan, Xia,Shi, Yong,et al. Adaptive signals of flowering time pathways in wild barley from Israel over 28 generations[J]. HEREDITY,2020,124(1):62-76.
APA	Qian, Chaoju.,Yan, Xia.,Shi, Yong.,Yin, Hengxia.,Chang, Yuxiao.,...&Ma, Xiao-Fei.(2020).Adaptive signals of flowering time pathways in wild barley from Israel over 28 generations.HEREDITY,124(1),62-76.
MLA	Qian, Chaoju,et al."Adaptive signals of flowering time pathways in wild barley from Israel over 28 generations".HEREDITY 124.1(2020):62-76.