NDLI: Characterization of single nucleotide polymorphism in Tunisian grapevine genome and their potential for population genetics and evolutionary studies

Content Provider	Springer Nature Link
Author	Riahi, Leila Zoghlami, Nejia Fournier Level, Alexandre Dereeper, Alexis Cunff, Loïc Laucou, Valérie Mliki, Ahmed This, Patrice
Copyright Year	2012
Abstract	In this study, two gene fragments corresponding to the VvMYBA1 and VvMYBA2 loci were sequenced on a sample of grapes including cultivated and wild accessions originating from Tunisia, Germany and France. A total of 42 SNPs were detected in the sequenced fragments giving an average of 1 SNP every 33 bp. High level of polymorphism was observed in the samples either in cultivated or wild accessions. Pattern of nucleotide diversity indicates a non departure from neutrality expectations for wild grapevine sample for gene VvMYBA1 and VvMYBA2 and for cultivated sample for gene VvMYBA1. However, a linkage to a selective sweep was revealed for cultivated grapevine gene pool in gene VvMYBA2. A genetic structure of the studied sample according to accession taxonomic status was revealed by the UPGMA clustering with a considerable overlap. This result was confirmed by significant but low genetic differentiation values between cultivated and wild sample. The number of migrants Nm based on sequence data information between Tunisian cultivars and Tunisian wild accessions showed a low level of gene flow between those germplasms. This finding indicates that Tunisian cultivars do not derive directly from local wild populations but could mostly correspond to imported materials introduced during historical times. However, the possibility that some cultivars derived from ancestral events of local domestication or cross hybridization with native wild plants was not completely excluded for Tunisian grapevine accessions.
Starting Page	1139
Ending Page	1151
Page Count	13
File Format	PDF
ISSN	09259864
Journal	Genetic Resources and Crop Evolution
Volume Number	60
Issue Number	3
e-ISSN	15735109
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-10-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Genetic relationships Haplotype diversity Single nucleotide polymorphism Tunisia Vitis vinifera L. Plant Sciences Plant Systematics/Taxonomy/Biogeography Plant Genetics & Genomics Plant Physiology Agriculture
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Ecology, Evolution, Behavior and Systematics Agronomy and Crop Science

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