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Acta Agronómica
versión impresa ISSN 0120-2812
Resumen
MARMOLEJO, Diego Fernando et al. Molecular characterization of 15 isolations of Beauveria bassiana related to Cosmopolites and Metamasius in plantain and banana in three regions of Colombia. Acta Agron. [online]. 2008, vol.57, n.3, pp.199-204. ISSN 0120-2812.
Weevils Cosmopolites and Metamasius in municipalities of the Valle del Cauca, Caldas and Quindío departaments of Colombia were collected. Monosporic cultures were obtained from10-10 and 10-11 dilutions of Beauveria bassiana. Isolates were kept at -80°C with 10% glycerol and DNA stored at -20°C. RAMs molecular markers generated a total of 82 fragments of which 67% were polymorphic. A heterozygosity value of 0.24 indicated a medium - high diversity. Five groups were formed which have a similarity value of 0.84 and one big group with 11 isolates and four groups with only one isolate. In the big group was detected a duplicate and fungi genetic diversity in the sampled places. Neither relationship among isolates of Cosmopolites and Metamasius nor geographical zone related to the formation of genetic groups.
Palabras clave : Entomopathogen; Deuteromicetes; molecular markers; RAMs; genetic diversity; weevils; Coleoptera Rhinchophorinae; Musa spp.