Diversidad genética en poblaciones humanas de Sincelejo, Sucre-Colombia, determinada mediante polimorfismos de inserciones Alu.

Abstract

The objective of this research was to determine the genetic diversity of the human population of Sincelejo, Sucre-Colombia through polymorphism of Alu insertions. Materials and Methods. The samples were obtained from 49 unrelated people in five localities of this population (Bogotá, Caribe, 20 de enero, Villa country, Cortijo), to which the DNA extraction protocol described in the Promega Wizard® Genomic DNA Purification Kit Technical Manual is applied, and were amplified by a series of polymerase chain reactions (PCR) using a series of Alu markers (ACE, A25, APO, D1, PV92, TRA25). Results. All the Alu markers evaluated in this research were polymorphic, the allelic frequencies presented an average of 0.305 with a maximum value of 0.551 for the TRA25 locus and a minimum value of 0.064 for the APO locus, a moderate heterozygosity observed in the population was detected, where the values presented a fluctuation of a minimum value of 0.125 for the APO locus and a maximum value of 0.471 for the PV92 locus. Marker D1 presents an absence of Hardy-Weinberg equilibrium for two subpopulations of Sincelejo (Villa Country and Caribe). Conclusion. The results obtained in this research allow us to conclude that the population of Sincelejo, Sucre-Colombia has low genetic diversity due to the fact that inbreeding processes have occurred throughout the history of this population.