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Título

Genetic variability of introduced and local Spanish peach cultivars determined by SSR markers

AutorBouhadida, Mariem CSIC ORCID; Moreno Sánchez, María Ángeles CSIC ORCID ; Gonzalo Pascual, María José CSIC ORCID; Alonso, José Manuel; Gogorcena Aoiz, Yolanda CSIC ORCID
Palabras claveSpanish native peach
Genetic diversity
SSR markers
Fecha de publicaciónabr-2011
EditorSpringer Nature
CitaciónBouhadida M, Moreno MA, Gonzalo MJ, Alonso JM, Gogorcena Y. Genetic variability of introduced and local Spanish peach cultivars determined by SSR markers. Tree Genetics and Genomes 7 (2):257-70 (2011)
ResumenA set of 94 peach cultivars including Spanish native peach and foreign commercial cultivars were analyzed using 15 SSR markers, selected for their high level of polymorphism. The number of alleles obtained varied from two to 11 with an average of 6.73 giving 185 different genotypes. All the cultivars showed a unique genetic profile, each one using different genotypic combination of all loci. BPPCT001 was the most informative locus showing also the highest discrimination power. Only six loci allowed the unambiguous separation of all the Spanish native cultivars studied, and the genotypic combination of only eight loci permitted the total differentiation of the 94 peach cultivars analyzed. The six selected loci (BPPCT001, BPPCT006, BPPCT008, PS9f8, UDP98-022, and UDP98-412) seem to be very useful for future Spanish peach identification works, and they will help to establish a molecular data base for native peach cultivars. UPGMA analysis was performed from the genetic distance matrix, and allowed the arrangement of all genotypes according to their genetic diversity. The genetic diversity among cultivars, observed in this work, led to their separation according to their regional origin, their morphological characteristics, and especially according to their fruit traits. Analysis of molecular variance was performed for seven populations from different regions of Spain and USA to examine the distribution of genetic variation of the studied accessions, showing that the major variation occurred within populations in each geographic site. The results reveal the existence of two diversity regions in Spain for peach germplasm.
Descripción38 Pag., 5 Tabl., 4 Fig. The definitive version is available at: at www.springerlink.com
Versión del editorhttp://dx.doi.org/10.1007/s11295-010-0329-3
URIhttp://hdl.handle.net/10261/37427
DOI10.1007/s11295-010-0329-3
ISSN1614-2942
E-ISSN1614-2950
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