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Agronomía Colombiana

versão impressa ISSN 0120-9965

Resumo

ARIAS, Diana; MONTOYA, Carmenza; REY, Leonardo  e  ROMERO, Hernán. Genetic similarity among commercial oil palm materials based on microsatellite markers. Agron. colomb. [online]. 2012, vol.30, n.2, pp.188-195. ISSN 0120-9965.

Microsatellite markers are used to determine genetic similarities among individuals and might be used in various applications in breeding programs. For example, knowing the genetic similarity relationships of commercial planting materials helps to better understand their responses to environmental, agronomic and plant health factors. This study assessed 17 microsatellite markers in 9 crosses (D x P) of Elaeis guineensis Jacq. from various commercial companies in Malaysia, France, Costa Rica and Colombia, in order to find possible genetic differences and/or similarities. Seventy-seven alleles were obtained, with an average of 4.5 alleles per primer and a range of 2-8 amplified alleles. The results show a significant reduction of alleles, compared to the number of alleles reported for wild oil palm populations. The obtained dendrogram shows the formation of two groups based on their genetic similarity. Group A, with ~76% similarity, contains the commercial material of 3 codes of Deli x La Mé crosses produced in France and Colombia, and group B, with ~66% genetic similarity, includes all the materials produced by commercial companies in Malaysia, France, Costa Rica and Colombia

Palavras-chave : Elaeis guineensis Jacq; breeding programs; alleles; genetic differences.

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