Characterisation of Chinese elite cultivars and genetic resources of chestnut by AFLP

Ovesná, Jaroslava; Kučera, L.; Jiang, Lin; Vagnerová, D.

doi:10.1007/s10535-005-5127-7

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…On the other hand, it is possible that more chloroplast haplotypes would be found if we detected a larger number of polymorphisms by sequencing the whole chloroplast genome of several cultivars. The finding that cultivars showed less genetic diversity than wild populations corresponds to the suggestions of Mattioni et al [45] and Ovesná et al [20], i.e., that because traits and genes useful for chestnut cultivation were artificially selected, the domestication process would typically reduce genetic diversity.…”

Section: Plos Onesupporting

confidence: 82%

“…While a large number of chloroplast haplotypes were identified within wild chestnut populations, only two haplotypes were identified in a collection of cultivars [ 19 ]. Ovesná et al [ 20 ] also suggested that the genetic variability of Chinese chestnut cultivars was less than that of wild populations. Thus, several studies have examined the genetic diversity of wild chestnut and the genetic relationship between wild populations and cultivar collections.…”

Section: Introductionmentioning

confidence: 99%

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Genetic evidence that Chinese chestnut cultivars in Japan are derived from two divergent genetic structures that originated in China

et al. 2020

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The Chinese chestnut (Castanea mollissima Bl.) was introduced into Japan about 100 years ago. Since then, a number of Chinese chestnut cultivars and Japanese-Chinese hybrid cultivars have been selected by farmers and plant breeders, but little information has been available about their origins and genetic relationships. A classification based on simple sequence repeat markers was conducted using 230 cultivars including Japanese chestnut (Castanea crenata Sieb. et Zucc.) cultivars originated in Japan, Japanese-Chinese hybrid cultivars, and Chinese chestnut cultivars originated in both Japan and China. First, a search for synonyms (cultivars with identical genotypes) revealed 23 synonym groups among the Chinese chestnut cultivars, and all but one cultivar from each synonym group was omitted from further analyses. Second, genetic structure analysis showed a clear division between Japanese and Chinese chestnut, and most of the Japanese and Chinese cultivars had a simple genetic structure corresponding to the expected species. On the other hand, most Japanese-Chinese hybrid cultivars had admixed genetic structure. Through a combination of parentage and chloroplast haplotype analyses, 16 of the 18 hybrid cultivars in this study were inferred to have parent-offspring relationships with other cultivars originated in Japan. Finally, Bayesian clustering and chloroplast haplotype analysis showed that the 116 Chinese chestnut cultivars could be divided into two groups: one originated in the Hebei region of China and the other originated in the Jiangsu and Anhui regions of China. The Chinese chestnut cultivars selected in Japan showed various patterns of genetic structure including Hebei origin, Jiangsu or Anhui origin, and admixed. The chestnut cultivar genetic classifications obtained in this study will be useful for both Japanese and Chinese chestnut breeding programs.

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Section: Plos Onesupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Genetic evidence that Chinese chestnut cultivars in Japan are derived from two divergent genetic structures that originated in China

et al. 2020

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“…Four DNA markers [amplified fragment length polymorphism (AFLP), random amplification of polymorphic DNA (RAPD), restriction fragment length polymorphism (RFLP) and simple sequence repeats (SSR)] have been widely used for detecting DNA polymorphisms in plants (Philips and Vasil 2001, Varshney et al 2004, Ovesná et al 2005, Joshi et al 2007, Mo et al 2008, Yao et al 2008, Akriditis et al 2009), including rice (Virk et al 2000, Garris et al 2005. For example, a 13.2 % leaf RAPD polymorphism was detected in the first-generation of sweet pepper from seeds endured a 5-d flight with a Chinese satellite (Liu et al 1999).…”

Section: ⎯⎯⎯⎯mentioning

confidence: 99%

Changes in AFLP and SSR DNA polymorphisms induced by short-term space flight of rice seeds

Lü¹,

Zhang²,

Hou³

et al. 2010

Biologia plant.

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Differences of both amplified fragment length polymorphism (AFLP) and simple sequence repeat (SSR) polymorphisms were compared between the 60-d-old rice (Oryza sativa L. cv. DH7) and F3 rice plants (SP3) derived from seed, which endured a 7-d-space flight in March 2002. Total leaf AFLP DNA bands amplified from 22 primer pairs were 537 in DH7, whereas 562 in SP3. From the total 267 SSR DNA bands generated by 267 primer pairs, 39 were polymorphic with 22 larger (56 %) or 17 smaller (44 %) fragment size bands. The greatest numbers of AFLP DNA bands were amplified by primer E1M1 in DH7 (33) and E3M1 in SP3 (35), whilst the least by E4M3 in DH7 (14) and E5M2 in SP3 (16).

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“…Given its wide distribution, the census population size of Chinese chestnut is probably similar to the estimated 3-4 billion American chestnuts ( Castanea dentata ) that grew in eastern North America prior to the introduction of chestnut blight disease (Hebard, 2012 ); given its outcrossing habit, this likely corresponds to a very high effective population size in wild Chinese chestnut. While genetic diversity is higher in wild trees, it appears that a high level of genetic diversity has been maintained in orchard (domesticated) Chinese chestnuts (Pereira-Lorenzo et al, 2016 ), although the genetic diversity of new cultivars may be lower than traditional orchard trees (Ovesna et al, 2004 ).…”

Section: Introductionmentioning

confidence: 99%

Signatures of Selection in the Genomes of Chinese Chestnut (Castanea mollissima Blume): The Roots of Nut Tree Domestication

2018

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Chestnuts (Castanea) are major nut crops in East Asia and southern Europe, and are unique among temperate nut crops in that the harvested seeds are starchy rather than oily. Chestnut species have been cultivated for three millennia or more in China, so it is likely that artificial selection has affected the genome of orchard-grown chestnuts. The genetics of Chinese chestnut (Castanea mollissima Blume) domestication are also of interest to breeders of hybrid American chestnut, especially if the low-growing, branching habit of Chinese chestnut, an impediment to American chestnut restoration, is partly the result of artificial selection. We resequenced genomes of wild and orchard-derived Chinese chestnuts and identified selective sweeps based on pooled whole-genome SNP datasets. We present candidate gene loci for chestnut domestication and discuss the potential phenotypic effects of candidate loci, some of which may be useful genes for chestnut improvement in Asia and North America. Selective sweeps included predicted genes potentially related to flower phenology and development, fruit maturation, and secondary metabolism, and included some genes homologous to domestication candidates in other woody plants.

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Characterisation of Chinese elite cultivars and genetic resources of chestnut by AFLP

Cited by 5 publications

References 16 publications

Genetic evidence that Chinese chestnut cultivars in Japan are derived from two divergent genetic structures that originated in China

Genetic evidence that Chinese chestnut cultivars in Japan are derived from two divergent genetic structures that originated in China

Changes in AFLP and SSR DNA polymorphisms induced by short-term space flight of rice seeds

Signatures of Selection in the Genomes of Chinese Chestnut (Castanea mollissima Blume): The Roots of Nut Tree Domestication

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