Genetic diversity and geographical dispersal in grapevine clones revealed by microsatellite markers

Moncada, Ximena; Pelsy, Frédérique; Merdinoglu, Didier; Hinrichsen, Patricio

doi:10.1139/g06-102

Cited by 64 publications

(42 citation statements)

References 35 publications

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“…According to the results obtained from the dendrogram, all the genotypes were divided into nine separate groups at a similarity index 0.508. The first group contained 24 genotypes, includ- In some studies intraspecies genetic diversification of V. vinifera corresponded to geographical dispersal (Moncada et al 2006). However, in the present study, the dendrogram generated using Jaccard's similarity index showed that the observed genetic diversity of cultivated and wild grape material sampled in Azerbaijan is not geographically structured, like the researches of Maia et al (2009) performed on Italian grape cultivars.…”

Section: Resultscontrasting

confidence: 57%

Evaluation of DNA polymorphism among cultivated and wild grapevine accessions from Azerbaijan

Salayeva¹,

Akhundova²,

Mammadov³

2010

CZECH J GENET PLANT

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Abstract:To estimate genetic relationships among 31 cultivated and 34 wild grape accessions originating from regions near the Caspian Sea in the Azerbaijan Republic, RAPD analysis was performed with 27 decamer primers selected from a total of 55 primers. The most discriminating primers were OPC-16, OPF-18 and OPA-17, which showed the highest values of genetic diversity (0.927, 0.914 and 0.909, respectively). The lowest values of diversity pertained to the markers OPA-1 (0.615) and V-20 (0.624). The cluster analysis representing genetic similarity among all selected samples divided the genotypes into nine separate groups at similarity index 0.508. Within the studied Azerbaijan grape populations the highest genetic diversity belonged to the population of cultivated samples originating from the Absheron peninsula, with a diversity index 0.852 and the next ranks were assigned to the wild populations originating from Nabran and Guba regions, with a diversity index 0.824 and 0.793, respectively. The lowest diversity was observed within Davachi individuals, with a diversity index 0.765. The wild population from Azerbaijan was molecularly similar to the cultivated gene pool from this area. This result supported the hypothesis that the southwest of the Caspian Sea is a region where grape was brought into culture. During the analysis a special band was observed which could be used in identifying wild and cultivated grape accessions with high or low resveratrol content. The results of this work clearly indicated that the RAPD analysis can be used to estimate genotypic similarities, genetic diversity and for clustering cultivated and wild grape accessions.Keywords: Azerbaijan wild and cultivated grape; genetic diversity; RAPD markers; resveratrol; similarity indexThe grape is unique: not only it is a major global horticultural crop but also it has ancient historical connections with the development of human culture. In the family Vitaceae it is the genus Vitis that is of major agronomic importance. It consists of ~ 60 mutually crossable species that exist almost exclusively in the northern hemisphere . Currently, Vitis vinifera is among the most important plant species cultivated on an area of about 7.9 million ha and there exist more than 10 000 grape cultivars worldwide, with annual production of approximately 58 million tons (FAO 2004).Modern crops are relatively recent descendents of their wild ancestors, and although the genetic distance between the cultivated and wild varieties is increased by the effects of human selection and the population bottleneck accompanying domestication, it is still necessary to type as many variable loci as possible to conduct meaningful studies of agricultural origins.Although wild grapes were probably present in many places in Europe during the Neolithic period, archaeological and historical evidences suggest that primo-domestication occurred in the Near East.

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Section: Resultscontrasting

confidence: 57%

Evaluation of DNA polymorphism among cultivated and wild grapevine accessions from Azerbaijan

Salayeva¹,

Akhundova²,

Mammadov³

2010

CZECH J GENET PLANT

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“…using the UMC1446, UMC1590 and UMC2343 primers (Rupp et al, 2009). The triallelic pattern in SSR loci has been considered evidence of chimeras, a mechanism of genetic diversification well characterized by Hocquigny et al (2004) occurring in grapevine clones (Crespan, 2004;Moncada et al, 2006). The detection of 3 alleles at the same locus could be the result of a chimeric structure in which genotypes of different cell layers displayed different alleles.…”

Section: Resultsmentioning

confidence: 99%

Selection of high heterozygosity popcorn varieties in Brazil based on SSR markers

Eloi

Mangolin²,

Scapim

et al. 2012

Genet. Mol. Res.

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ABSTRACT. We analyzed genetic structure and diversity among eight populations of popcorn, using SSR loci as genetic markers. Our objectives were to select SSR loci that could be used to estimate genetic diversity within popcorn populations, and to analyze the genetic structure of promising populations with high levels of heterozygosity that could be used in breeding programs. Fifty-seven alleles (3.7 alleles per locus) were detected; the highest effective number of alleles (4.21) and the highest gene diversity (0.763) were found for the Umc2226 locus. A very high level of population differentiation was found (F st = 0.3664), with F st for each locus ranging from 0.1029 (Umc1664) to 0.6010 (Umc2350). This analysis allowed us to identify SSR loci with high levels of heterozygosity and heterozygous varieties, which could be selected for production of inbred lines and for developing new cultivars.

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“…Somatic mutation could have also contributed to shaping diversity (Antolin and Strobeck, 1985;Moncada et al, 2006). An illustration of this phenomenon is the large clonal diversity of grape varieties, relative to their age and diffusion (43 distinct clones of Pinot Noir and 26 of Cabernet-franc certified in France; ENTAV-ITV, 2007).…”

Section: Molecular Evolution Of Grape Colourmentioning

confidence: 99%

Evolution of the VvMybA gene family, the major determinant of berry colour in cultivated grapevine (Vitis vinifera L.)

et al. 2009

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Polymorphisms in the grape transcription factor family VvMybA are responsible for variation in anthocyanin content in the berries of cultivated grapevine (Vitis vinifera L. subsp. sativa). Previous study has shown that white grapes arose through the mutation of two adjacent genes: a retroelement insertion in VvMybA1 and a single-nucleotide polymorphism mutation in VvMybA2. The purpose of this study was to understand how these mutations emerged and affected genetic diversity at neighbouring sites and how they structured the genetic diversity of cultivated grapevines. We sequenced a total of 3225 bp of these genes in a core collection of genetic resources, and carried out empirical selection tests, phylogenetic-and coalescence-based demographic analyses. The insertion in the VvMybA1 promoter was shown to have occurred recently, after the mutation of VvMybA2, both mutations followed by a selective sweep. The mutational pattern for these colour genes is consistent with progressively relaxed selection from constrained ancestral coloured haplotypes to light coloured and finally white haplotypes. Dynamics of population size in the VvMybA genes showed an initial exponential growth, followed by population size stabilization. Most ancestral haplotypes are found in cultivars from western region, whereas recent haplotypes are essentially present in table cultivars from eastern regions where intense breeding practices may have replaced the original diversity. Finally, the emergence of the white allele was followed by a recent strong exponential growth, showing a very fast diffusion of the initial white allele.

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Genetic diversity and geographical dispersal in grapevine clones revealed by microsatellite markers

Cited by 64 publications

References 35 publications

Evaluation of DNA polymorphism among cultivated and wild grapevine accessions from Azerbaijan

Evaluation of DNA polymorphism among cultivated and wild grapevine accessions from Azerbaijan

Selection of high heterozygosity popcorn varieties in Brazil based on SSR markers

Evolution of the VvMybA gene family, the major determinant of berry colour in cultivated grapevine (Vitis vinifera L.)

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