Intercontinental genetic divergence of Castanea species in eastern Asia and eastern North America

doi:10.1038/sj.hdy.6800300

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	Intercontinental genetic divergence of Castanea species in eastern Asia and eastern North America
	Dane, F ; Lang, P ; Huang, H ; Fu, Y
刊名	HEREDITY
	2003-09-01
卷号	91 期号:3 页码:314-321
关键词	Castanea genetic divergence allozyme genetic variability disjunct species divergence time
ISSN号	0018-067X
DOI	10.1038/sj.hdy.6800300
英文摘要	Castanea is one of the many plant genera with a disjunct distribution pattern between eastern Asia and eastern North America. Five species from three sections of the genus were investigated to examine genetic divergence between eastern Asian and eastern North American species. A total of 62 native populations were sampled for allelic variation at isozyme loci. The Chinese chestnut C. mollissima had the highest genetic variability, while the American C. dentata had the lowest genetic variability. The highest intracontinental genetic identities were observed between the Allegheny and Ozark chinkapins (0.931) and between C. mollissima and C. seguinii (0.870), while lower identities were detected between the American C. pumila and C. dentata (0.720 - 0.729). In intercontinental comparisons, genetic identities of 0.505, 0.495 and 0.507 were observed between the American chestnut and the Chinese C. mollissima, C. seguinii and C. henryi, respectively, whereas the Ozark chinkapin C. pumila var. ozarkensis had lower identities of 0.469, and 0.435 with C. mollissima and C. seguinii, respectively, but a slightly higher identity of 0.520 with C. henryi, the Chinese chinkapin. Divergence times were estimated at 10 - 13 million years before present between C. dentata and C. mollissima, and C. pumila var. ozarkensis and C. henryi.
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000185076200017
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1224]
专题	中国科学院武汉植物园
通讯作者	Dane, F
作者单位	1.Auburn Univ, Dept Hort, Auburn, AL 36849 USA 2.Chinese Acad Sci, Wuhan Inst Bot, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Dane, F,Lang, P,Huang, H,et al. Intercontinental genetic divergence of Castanea species in eastern Asia and eastern North America[J]. HEREDITY,2003,91(3):314-321.
APA	Dane, F,Lang, P,Huang, H,&Fu, Y.(2003).Intercontinental genetic divergence of Castanea species in eastern Asia and eastern North America.HEREDITY,91(3),314-321.
MLA	Dane, F,et al."Intercontinental genetic divergence of Castanea species in eastern Asia and eastern North America".HEREDITY 91.3(2003):314-321.