SciELO - Scientific Electronic Library Online

 
vol.11 número5Assessment of genetic diversity in Venezuelan rice cultivars using simple sequence repeats markersNovel s-triazine-degrading bacteria isolated from agricultural soils of central Chile for herbicide bioremediation índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Electronic Journal of Biotechnology

versión On-line ISSN 0717-3458

Resumen

ROJAS, Gabriela et al. Identification of a minimal microsatellite marker panel for the fingerprinting of peach and nectarine cultivars. Electron. J. Biotechnol. [online]. 2008, vol.11, n.5, pp. 4-5. ISSN 0717-3458.

The genetic characterization of 117 peach and nectarine cultivars (Prunus persica (L.) Batsch) using microsatellite (SSR) markers is presented. Analyzed genotypes include the complete list of cultivars under intellectual property (IP) protection in Chile. One hundred and two out of the 117 cultivars under study could be identified using only 7 SSRs. Other 5 cultivars were differentiated using 3 additional markers, but 5 pairs of genotypes were not differentiable. The average expected heterozygosity for the set of markers was 0.55, ranging from 0.28 in BPPCT-008 to 0.81 in CPPCT-022, with an F value of 0.37. A Neighbor-Joining dendrogram showed that, with few exceptions, peaches and nectarines clustered separately. These results are the basis for the development of a fingerprinting protocol for the unequivocal identification of most of the peach and nectarine cultivars officially registered in Chile.

Palabras llave : cultivar identification; fingerprinting; Prunus persica; simple sequence repeats; SSR.

        · texto en Inglés     · pdf en Inglés