Genetic diversity and relationship of clonal tea (Camellia sinensis) cultivars in China as revealed by SSR markers

Fang, Wanping; Cheng, Hsiang-Yun; Duan, Yifan; Jiang, Xingwen; Li, X.

doi:10.1007/s00606-011-0559-3

Cited by 53 publications

(42 citation statements)

References 14 publications

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“…This result is consistent with other molecular marker studies of C. sinensis (Chen et al, 2005;Fang et al, 2012;Yao et al, 2012), and this result is probably because genetic exchanges occurred frequently among Fujian, Zhejiang, and Hunan because of human activities.…”

Section: Discussionsupporting

confidence: 92%

“…More than 1000 SSR markers have been developed for C. sinensis (Freeman et al, 2004;Zhao et al, 2008;Sharma et al, 2009Sharma et al, , 2011Fang et al, 2012;Ma et al, 2010Ma et al, , 2012Taniguchi et al, 2012a;Yao et al, 2012), and a few SSR-based maps have been reported (Taniguchi et al, 2012b;Tan et al, 2013). In these studies, the average observed heterozygosity (H O ) of SSR markers varied greatly depending on the marker-developing strategies and plant materials assayed.…”

Section: Introductionmentioning

confidence: 99%

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Heterozygosities and genetic relationship of tea cultivars revealed by simple sequence repeat markers and implications for breeding and genetic mapping programs

Tan¹,

Zhang²,

Qi³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Genetic maps are essential tools for quantitative trait locus analysis and marker-assisted selection breeding. In order to select parents that are highly heterozygous for genetic mapping, the heterozygosity (H S ) of 24 tea cultivars (Camellia sinensis) was analyzed with 72 simple sequence repeat markers. In total, 359 alleles were obtained with an average of 4.99 per marker. The H S varied greatly from 37.5 to 71.0% with an average of 51.3%. On average, tea cultivars from Fujian Province showed a higher level of heterozygosity (59.8%) than those from Zhejiang (48.5%) and Yunnan (44.5%), and the 12 national tea cultivars were generally more heterozygous than the 12 provincial cultivars. Unweighted pair-group analysis using the arithmetic average grouping divided the 24 cultivars into 2 groups that are consistent with the morphological classification. All dual combinations of the 24 cultivars were studied to calculate the percentage of mappable markers when using pseudo-testcross mapping strategy, and results showed that this value also varied greatly from 51.4 to 90.3%. The genetic relationships and H S differences among different cultivars were discussed, and tea cultivars with high H S were recommended as cross parents for genetic mapping programs.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Heterozygosities and genetic relationship of tea cultivars revealed by simple sequence repeat markers and implications for breeding and genetic mapping programs

Tan¹,

Zhang²,

Qi³

et al. 2015

Genet. Mol. Res.

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“…The status of chemical and genetic diversity knowledge in tea ( Camelia sinensis ), the main species used in the preparation of non‐alcoholic beverages is advanced. Recently it was demonstrated the genetic diversity and relationships between clonal tea cultivars in China, and the main breeding programs strategies to this species were also reviewed . Chemical methods for the selection of the tea superior individuals, based on their catechin content have been successfully used .…”

Section: Resultsmentioning

confidence: 99%

Genetic and Phytochemical Analysis to Evaluate the Diversity and Relationships of Mate (Ilex paraguariensis A.St.‐Hil.) Elite Genetic Resources in a Germplasm Collection

Friedrich

Gonela

Gonçalves‐Vidigal

et al. 2017

Chemistry & Biodiversity

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The aim of this study was to evaluate the phytochemical and genetic diversity, relationships and identification of mate (Ilex paraguariensis A.St.-Hil.) elite genetic resources belonging to the Brazilian germplasm collection and mate breeding program. Mate has been studied due to the presence of phytochemical compounds, especially methylxanthines and phenolic compounds. The samples were collected from the leaves of 76 mate elite genetic resources (16 progenies × 5 localities). Total DNA was extracted from mate leaves and 20 random primers were used for DNA amplification. Methylxanthines (caffeine and theobromine) and phenolic compounds (chlorogenic, neochlorogenic, and criptochlorogenic acids) were quantified by HPLC. The genetic divergence estimated was higher within (92%) than among (8%) the different populations. Analysis of genetic distance between origins provided the formation of two groups by UPGMA cluster analysis, with higher polymorphism (94.9%). The average content of caffeine ranged from 0.01 to 1.38% and theobromine of 0.10 - 0.85% (w/w). The caffeoylquinic acids concentrations (1.43 - 5.38%) showed a gradient 3-CQA > 5-CQA > 4-CQA. The coefficient of genetic variation (CVg) was of low magnitude for all mono-caffeoylquinics acids. Significant correlations (positive and negative) were observed between the phytochemical compounds. Genetic diversity analysis performed by RAPD markers showed a greater intra-populational diversity; genetic resources with low caffeine and higher theobromine content were identified and can be used in breeding programs; the correlation between methylxanthines and phenolic compounds can be used as a good predictor in future studies.

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“…assamica from multiple countries have revealed that collections from China and India have high levels of genetic diversity, but these studies analyzed only a few dozen accessions (Wachira et al 2001;Matsumoto 2002, 2003;Yao et al 2008). More recently, some studies analyzed several hundred germplasms using simple sequence repeat (SSR) or amplified fragment-length polymorphism (AFLP) markers (Ohsako et al 2008;Yao et al 2012;Raina et al 2012;Fang et al 2012), but only domestic germplasms in Japan, China, or India.…”

Section: Introductionmentioning

confidence: 99%

Worldwide core collections of tea (Camellia sinensis) based on SSR markers

Taniguchi

Kimura

Saba

et al. 2014

Tree Genetics & Genomes

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Tea (Camellia sinensis (L.) O. Kuntze) is the world's most popular beverage crop. However, to date, no core collection has been selected from worldwide germplasm resources on the basis of genotype data. In this study, we analyzed 788 tea germplasm accessions using 23 simple sequence repeat (SSR) markers. Our population structure analysis divided the germplasms into a Japanese group and an exotic group. The latter could be divided into var. sinensis and var. assamica. The genetic diversity was higher in germplasms from China, Taiwan, India, and Sri Lanka than in those from other countries, and low in germplasms from Japan. Using the number of SSR alleles as a measure of genetic diversity, we developed a core collection consisting of 192 accessions and three subcore collections with 96, 48, and 24 accessions. Although the results might be affected by marker-selection bias, the core 192 collection adequately covered the range of variation of the 788 accessions in floral morphology, and the chemical composition of first-flush leaves. These collections will be powerful tools for breeding and genetic research in tea.

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Genetic diversity and relationship of clonal tea (Camellia sinensis) cultivars in China as revealed by SSR markers

Cited by 53 publications

References 14 publications

Heterozygosities and genetic relationship of tea cultivars revealed by simple sequence repeat markers and implications for breeding and genetic mapping programs

Heterozygosities and genetic relationship of tea cultivars revealed by simple sequence repeat markers and implications for breeding and genetic mapping programs

Genetic and Phytochemical Analysis to Evaluate the Diversity and Relationships of Mate (Ilex paraguariensis A.St.‐Hil.) Elite Genetic Resources in a Germplasm Collection

Worldwide core collections of tea (Camellia sinensis) based on SSR markers

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