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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Characterization of single nucleotide polymorphism in Tunisian grapevine genome and their potential for population genetics and evolutionary studies
Genetic Resources and Crop Evolution, Volume 60, No. 3, Year 2013
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Description
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. © 2012 Springer Science+Business Media Dordrecht.
Authors & Co-Authors
Riahi, Leila
Tunisia, Hamam Lif
Centre de Biotechnologie de Borj Cédria
Zoghlami, Néjia
Tunisia, Hamam Lif
Centre de Biotechnologie de Borj Cédria
Fournier-Level, Alexandre
United States, Providence
Brown University
Dereeper, Alexis
France, Montpellier
Ird Centre de Montpellier
Le Cunff, Loïc
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Laucou, V.
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Mliki, A.
Tunisia, Hamam Lif
Centre de Biotechnologie de Borj Cédria
This, P.
France, Montpellier
Amélioration Génétique et Adaptation Des Plantes Méditerranéennes et Tropicales Agap
Statistics
Citations: 8
Authors: 8
Affiliations: 4
Identifiers
Doi:
10.1007/s10722-012-9910-y
ISSN:
09259864
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study
Study Locations
Tunisia