Genetic homogenization of the nuclear ITS loci across two morphologically distinct gentians in their overlapping distributions in the Qinghai-Tibet Plateau

	Genetic homogenization of the nuclear ITS loci across two morphologically distinct gentians in their overlapping distributions in the Qinghai-Tibet Plateau
	Hu, Quanjun 1; Peng, Huichao 2; Bi, Hao 1; Lu, Zhiqiang 3; Wan, Dongshi 3; Wang, Qian 1,4; Mao, Kangshan 1
刊名	scientific reports
	2016-09-30
卷号	6
英文摘要	interspecific hybridization and introgression can lead to partial genetic homogenization at certain neutral loci between morphologically distinct species and may obscure the species delimitation using nuclear genes. in this study, we investigated this phenomenon through population genetic survey of two alpine plants (gentiana siphonantha and g. straminea) in the qinghai-tibet plateau, where the distributions of two species are partly overlapped. we identified two clusters of chloroplast dna haplotypes which correspond to the two species, and three clusters of its ribotypes. in addition to clusters specific to each species, the third its cluster, which was most likely derived from hybridization between the other two clusters and subsequent recombination and concerted evolution, was widely shared by two species in their adjacent areas. in contrast to the morphological distinctiveness of the two species, interspecific gene flow possibly led to genetic homogenization at their its loci. the new its lineage recovered for species in adjacent areas is distinctly different from original lineages found in allopatric areas. these findings may have general implications for our understanding of cryptic changes at some genetic loci caused by interspecific gene flow in the history, and they indicate that species delimitation should be based on a combination of both nuclear and chloroplast dna sequence variations.
WOS标题词	science & technology
类目[WOS]	multidisciplinary sciences
研究领域[WOS]	science & technology - other topics
关键词[WOS]	internal transcribed spacer ; phylogenetic inference ; molecular phylogeny ; concerted evolution ; mitochondrial-dna ; ribosomal dna ; alpine plants ; introgression ; flow ; diversification
收录类别	SCI
语种	英语
WOS记录号	WOS:000384343800001
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/6434]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Sichuan Univ, Coll Life Sci, MOE Key Lab Bioresources & Ecoenvironm, Chengdu 6100065, Peoples R China 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Evolut & Adaptat Plateau Biota, Xining 810001, Qinghai, Peoples R China 3.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Ecosyst, Lanzhou 730000, Peoples R China 4.Zunyi Med Univ, Res Ctr Med & Biol, Key Lab Oral Dis Res, Zunyi 563000, Peoples R China
推荐引用方式 GB/T 7714	Hu, Quanjun,Peng, Huichao,Bi, Hao,et al. Genetic homogenization of the nuclear ITS loci across two morphologically distinct gentians in their overlapping distributions in the Qinghai-Tibet Plateau[J]. scientific reports,2016,6.
APA	Hu, Quanjun.,Peng, Huichao.,Bi, Hao.,Lu, Zhiqiang.,Wan, Dongshi.,...&Mao, Kangshan.(2016).Genetic homogenization of the nuclear ITS loci across two morphologically distinct gentians in their overlapping distributions in the Qinghai-Tibet Plateau.scientific reports,6.
MLA	Hu, Quanjun,et al."Genetic homogenization of the nuclear ITS loci across two morphologically distinct gentians in their overlapping distributions in the Qinghai-Tibet Plateau".scientific reports 6(2016).