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dc.contributorJouve, Nicolasen_US
dc.contributorSoler, Consueloen_US
dc.contributorFrieiro, Evaen_US
dc.contributorGonzález, Juanen_US
dc.creatorHammami, Rifkaen_US
dc.identifier.citationRifka Hammami, Nicolas Jouve, Consuelo Soler, Eva Frieiro, Juan González. (1/11/2014). Genetic diversity of SSR and ISSR markers in wild populations of Brachypodium distachyon and its close relatives B. stacei and B. hybridum (Poaceae). Plant Systematics and Evolution, 300 (9), pp. 2029-2040.en_US
dc.description.abstractThe genetic diversity of seven wild populations of the grass Brachypodium distachyon (2n = 10), 4 of B. stacei (2n = 20) and 13 of B. hybridum (2n = 30) from the Mediterranean and southern areas of the Iberian Peninsula was studied via the analysis of microsatellite (SSR) and inter-microsatellite (ISSR) markers. The 11 SSR markers analysed provided a total of 156 polymorphic fragments. The B. hybridum populations returned more fragments (98) than the B. stacei populations (87), and more than twice the number recorded for the B. distachyon populations (44). Some fragments were specific to the B. distachyon (3.85 %), B. stacei (27.56 %) or B. hybridum populations (18.58 %). The analysis of 16 ISSR markers returned similar results: the B. hybridum populations returned more polymorphic fragments than the B. distachyon or B. stacei populations. The analysis of molecular variance, with distances between individuals, populations and species estimated on the basis of the presence/absence of the SSR and ISSR fragments, showed most of the variation (67 %) to occur among populations. This was followed by differences among individuals within populations (24 %), and finally among species (9 %). Grouping based on UPGMA and principal coordinate analysis showed a clear separation of three groups corresponding to the populations of the same species. Principal component analysis, involving chromosome number, low-molecular weight-glutenin subunits and the most influential climatic and geographic factors, was also performed. This revealed an obvious separation among the populations of B. distachyon and B. hybridum. The index of Mediterraneity and altitude explained 70.56 % of the total variation associated with the first axis. A trend was seen towards a greater presence of B. distachyon forms in areas of the Peninsular interior and higher altitude, with the B. hybridum forms more common in regions of greater summer rainfall and a lower index of Mediterraneity.en_US
dc.publisherSpringer Verlag (Germany)en_US
dc.sourcePlant Systematics and Evolution;300,(2014) Pagination 2029-2040en_US
dc.subjectbrachypodium staceien_US
dc.subjectbrachypodium hybridumen_US
dc.subjectgeographic dispersalen_US
dc.subjectgenetic diversityen_US
dc.titleGenetic diversity of SSR and ISSR markers in wild populations of Brachypodium distachyon and its close relatives B. stacei and B. hybridum (Poaceae)en_US
dc.typeJournal Articleen_US
cg.subject.agrovocbrachypodium distachyonen_US
cg.contributor.centerUniversity of Alcalaen_US
cg.contributor.centerThe National Institute for Agronomic Research - INIA Spainen_US
cg.contributor.crpCGIAR Research Program on Grain Legumes - GLen_US
cg.contributor.crpCGIAR Research Program on Wheat - WHEATen_US
cg.contributor.funderInternational Fund for Agricultural Development - IFADen_US
cg.contributor.projectEnhanced small-holder wheat-legume cropping systems to improve food security under changing climate in the drylands of West Asia and North Africaen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Africaen_US
cg.coverage.regionSouthern Europeen_US
cg.isijournalISI Journalen_US
dc.identifier.statusLimited accessen_US
cg.journalPlant Systematics and Evolutionen_US

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