Genetic diversity and differentiation of Camellia sinensis L. (cultivated tea) and its wild relatives in Yunnan province of China, revealed by morphology, biochemistry and allozyme studies

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	Genetic diversity and differentiation of Camellia sinensis L. (cultivated tea) and its wild relatives in Yunnan province of China, revealed by morphology, biochemistry and allozyme studies
	Jin, C ; Wang, PS ; Xia, YM ; Xu, M ; Pei, SJ
通讯作者	biotrans@bn.yn.cninfo.net
	2005-02-01
发表期刊	GENETIC RESOURCES AND CROP EVOLUTION
ISSN	0925-9864
卷号	52 期号:1 页码:41-52
摘要	We evaluated morphological, isozyme and biochemical diversity of a total of 87 accessions in the genus Camellia [Camellia sinensis var. sinensis (10), C. talinensis (7), C sinensis var. dehungensis (3), C. crassicolumna (3) and C. sinensis var. assamica (64)]. Great variation of morphological characters was apparent within each taxa. Across the five taxa, all leaf and most flower quantitative characters showed significant differences while all fruit quantitative characters measured did not differ significantly, and, seven (i.e., life form, bud color, petal texture, pubescence on ovary, style number, stamen location and locule per fruit) of the 33 qualitative characters yield significant differences. As a whole, caffeine content had the highest variation with CV of 22.7%, water extract solid showed the least variation (13.4%) and content of polyphenols (20.0%) and free amino acids (18.8%) showed intermediate variations. Camellia taliensis and C. sinensis var. assamica had significantly higher content of polyphenols and water extract solid than in the other three taxa, while no significant differences were detected for the content of caffeine and free amino acids. For allozyme study, 14 loci presented good resolution, among which, nine loci (64%) were polymorphic in each taxon (AAT-3, FUM-1, 6PDG-1, G6PDH-1, G3PDH-1, ME-1, PGM-1, PGM-2 and SKD-1). The percentage of polymorphic loci (P) for each taxon was 21.4-50.0%. Mean heterozygosity per locus (H-e) varied 0.114-0.218. F-ST value indicated that only 4.6% of the variations could be ascribable to genetic differences among taxa. Genetic relationships among the five taxa revealed by allozymes, were also exposed by the result of clustering of the morphological and biochemical characters.
关键词	Allozyme Biochemistry Camellia Differentiation Genetic Diversity Morphology
学科领域	Agronomy ; Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000227725900006
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/13537
专题	离退休
作者单位	1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan Province, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan Province, Peoples R China 3.Yunnan Acad Agr Sci, Tea Res Inst, Menghai 666201, Yunnan Province, Peoples R China
推荐引用方式 GB/T 7714	Jin, C,Wang, PS,Xia, YM,et al. Genetic diversity and differentiation of Camellia sinensis L. (cultivated tea) and its wild relatives in Yunnan province of China, revealed by morphology, biochemistry and allozyme studies[J]. GENETIC RESOURCES AND CROP EVOLUTION,2005,52(1):41-52.
APA	Jin, C,Wang, PS,Xia, YM,Xu, M,&Pei, SJ.(2005).Genetic diversity and differentiation of Camellia sinensis L. (cultivated tea) and its wild relatives in Yunnan province of China, revealed by morphology, biochemistry and allozyme studies.GENETIC RESOURCES AND CROP EVOLUTION,52(1),41-52.
MLA	Jin, C,et al."Genetic diversity and differentiation of Camellia sinensis L. (cultivated tea) and its wild relatives in Yunnan province of China, revealed by morphology, biochemistry and allozyme studies".GENETIC RESOURCES AND CROP EVOLUTION 52.1(2005):41-52.

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