Article (Scientific journals)
Molecular genetic diversity of Punica granatum L. (pomegranate) as revealed by microsatellite DNA markers (SSR)
Hasnaoui, Nejib; Buonamici, Anna; Sebastiani, Federico et al.
2012In Gene
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Keywords :
Punica granatum; Microsatellite; Genotype; Allele; SSR development; Synonymous group
Abstract :
[en] Pomegranate (Punica granatum L.) is one of the oldest known edible fruits and more and more it arouse interest of scientific community given its numerous biological activities. However, information about its genetic resources and characterization using reliable molecular markers are still scarce. In the present study, we report the development of 4 new polymorphic SSR markers. They have been used in addition to 11 SSRs previously published to investigate molecular diversity of 33 Punica granatum ecotypes. Based on the multi-locus profiles, twenty-two distinctive genotypes were identified. Globally, quite low genetic diversity has been revealed, as measured by allele richness (2.83 per locus) and heterozygosity (He = 0.245; Ho = 0.243), reflecting the narrow genetic background of the plant material. Four synonymous groups could be detected involving 15 accessions. Results of ordination and cluster analysis suggested that almost all the Tunisian cultivars share similar genetic background, and are likely derived from a small number of introductions in ancient times. Results issued from this study provide essential information to project a previous termpomegranatenext term core-collection without plant material duplication and for sustainable management of previous termpomegranatenext term landraces at national and international level. Furthermore, these SSR markers are powerful tool for marker assisted selection (MAS) program and for QTL studies.
Disciplines :
Agriculture & agronomy
Author, co-author :
Hasnaoui, Nejib ;  Institut Supérieur Agronomique, Chott Meriam 4042, Sousse, Tunisie > U.R. Agrobiodiversité
Buonamici, Anna;  Instituto di Genetica Vegetale (CNR-IGV), 50019 Sesto Fiorentino, Florence, Italy
Sebastiani, Federico;  Genexpress, Università di Firenze, 50019 Sesto Fiorentino, Florence, Italy > Dpt. Biotechnologie Agrarie
Mars, Messaoud;  Institut Supérieur Agronomique, Chott Meriam 4042, Sousse, Tunisia > U.R. Agrobiodiversité
Zhand, Dapeng;  Plant Sciences Institute, Beltsville Agricultural Research Center, USDA/ARS, MD 20705, USA > Sustainable Perennial Crops Laboratory
Vendramin, Giovanni;  Instituto di Genetica Vegetale (CNR-IGV), 50019 Sesto Fiorentino, Florence, Italy
Language :
English
Title :
Molecular genetic diversity of Punica granatum L. (pomegranate) as revealed by microsatellite DNA markers (SSR)
Publication date :
2012
Journal title :
Gene
ISSN :
0378-1119
eISSN :
1879-0038
Publisher :
Elsevier Science, Amsterdam, Netherlands
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 November 2011

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