Genetic variation in the endangered Anisodus tanguticus (Solanaceae), an alpine perennial endemic to the Qinghai-Tibetan Plateau

	Genetic variation in the endangered Anisodus tanguticus (Solanaceae), an alpine perennial endemic to the Qinghai-Tibetan Plateau
	Zheng, Wei ; Wang, Liuyang ; Meng, Lihua ; Liu, Jianquan
刊名	genetica
	2008-02-01
卷号	132 期号:2 页码:123-129
关键词	anisodus tanguticus RAPDs genetic diversity conservation the Qiughai-Tibetan Plateau
合作状况	其它
中文摘要	we used random amplified polymorphic dna markers (rapds) to assess genetic variation between- and within-populations of anisodus tanguticus (solanaceae), an endangered perennial endemic to the qinghai-tibetan plateau with important medicinal value. we recorded a total of 92 amplified bands, using 12 rapd primers, 76 of which (p = 82.61%) were polymorphic, and calculated values of h-t and h-sp of 0.3015 and 0.4459, respectively, suggesting a remarkably high rate of genetic variation at the species level. the average within-population diversity also appeared to be high, with p, h-e and h-pop values of 55.11%, 0.1948 and 0.2918, respectively. analyses of molecular variance (amova) showed that among- and between-population genetic variation accounted for 67.02% and 32.98% of the total genetic variation, respectively. in addition, nei's coefficient of differentiation (g(st)) was found to be high (0.35), confirming the relatively high level of genetic differentiation among the populations. these differentiation coefficients are higher than mean corresponding coefficients for outbreeding species, but lower than reported coefficients for some rare species from this region. the genetic structure of a. tanguticus has probably been shaped by its breeding attributes, biogeographic history and human impact due to collection for medicinal purposes. the observed genetic variations suggest that as many populations as possible should be considered in any planned in situ or ex situ conservation programs for this species.
英文摘要	we used random amplified polymorphic dna markers (rapds) to assess genetic variation between- and within-populations of anisodus tanguticus (solanaceae), an endangered perennial endemic to the qinghai-tibetan plateau with important medicinal value. we recorded a total of 92 amplified bands, using 12 rapd primers, 76 of which (p = 82.61%) were polymorphic, and calculated values of h-t and h-sp of 0.3015 and 0.4459, respectively, suggesting a remarkably high rate of genetic variation at the species level. the average within-population diversity also appeared to be high, with p, h-e and h-pop values of 55.11%, 0.1948 and 0.2918, respectively. analyses of molecular variance (amova) showed that among- and between-population genetic variation accounted for 67.02% and 32.98% of the total genetic variation, respectively. in addition, nei's coefficient of differentiation (g(st)) was found to be high (0.35), confirming the relatively high level of genetic differentiation among the populations. these differentiation coefficients are higher than mean corresponding coefficients for outbreeding species, but lower than reported coefficients for some rare species from this region. the genetic structure of a. tanguticus has probably been shaped by its breeding attributes, biogeographic history and human impact due to collection for medicinal purposes. the observed genetic variations suggest that as many populations as possible should be considered in any planned in situ or ex situ conservation programs for this species.
学科主题	遗传学
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	genetics & heredity
研究领域[WOS]	genetics & heredity
关键词[WOS]	buffalograss buchloe-dactyloides ; amplified polymorphic dna ; molecular phylogeny ; rapd variation ; populations ; diversity ; markers ; conservation ; phylogeography ; asteraceae
收录类别	SCI
语种	英语
WOS记录号	WOS:000251308200002
公开日期	2009-12-07
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/1247]
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.Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Qinghai Tibetan Plateau Ecosyst & Biol Ev, Xining 810001, Qinghai, Peoples R China 2.Lanzhou Univ, Key Lab Arid & Grassland Ecol, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Wei,Wang, Liuyang,Meng, Lihua,et al. Genetic variation in the endangered Anisodus tanguticus (Solanaceae), an alpine perennial endemic to the Qinghai-Tibetan Plateau[J]. genetica,2008,132(2):123-129.
APA	Zheng, Wei,Wang, Liuyang,Meng, Lihua,&Liu, Jianquan.(2008).Genetic variation in the endangered Anisodus tanguticus (Solanaceae), an alpine perennial endemic to the Qinghai-Tibetan Plateau.genetica,132(2),123-129.
MLA	Zheng, Wei,et al."Genetic variation in the endangered Anisodus tanguticus (Solanaceae), an alpine perennial endemic to the Qinghai-Tibetan Plateau".genetica 132.2(2008):123-129.