Assessment of genetic diversity of Latvian and Swedish sweet cherry (Prunus avium

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• 作者：Gunars Lacis ; Isaak Rashal ; Silvija Ruisa ; Viktor Trajkovski ; Amy F. Iezzoni
• 关键词：Prunus avium L. ; Microsatellites ; SSR ; Germplasm ; Genetic diversity
• 刊名：Scientia Horticulturae
• 出版年：2009
• 出版时间：4 August 2009
• 年：2009
• 卷：121
• 期：4
• 页码：451-457
• 全文大小：295 K

文摘

Three previously described highly polymorphic SSR (microsatellite) primer pairs were tested on 126 sweet cherry (Prunus avium L.) accessions to adapt a fast, reliable method for preliminary screening of sweet cherry germplasm collections and to compare two sweet cherry germplasm collections: at the Latvia State Institute of Fruit-Growing, Dobele (LIFG-Dobele) and at the Division of Horticultural Genetics and Plant Breeding at Balsgård, Department of Crop Sciences, Swedish University of Agricultural Sciences (SLU-Balsgård). The SSR loci were highly polymorphic with 4–10 different alleles and 5–18 genotypes. Heterozygosity values ranged from 0.431 to 0.809, gene diversity (PIC) values ranged from 0.400 to 0.753, and the discriminating power of each locus varied from 0.631 to 0.894. The combined discriminating power of all loci was highly effective (0.996). Sixteen identical accession groups with the same allele profile were discovered in both collections. This study demonstrated that SSR fingerprinting with the three primer pairs tested, can be used for preliminary characterization of sweet cherry germplasm collections.