Parentesco genético en dos grupos familiares de Vicugna vicugna (Molina, 1782) del Altiplano boliviano
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J.Selva Andina Anim. Sci.
Abstract
Las vicuñas (Vicugna vicugna) habitan en los altos Andes del sur de Perú, oeste de Bolivia, noreste de Chile y noreste de Argentina, siendo explotadas por su apreciada fibra. Recientes legislaciones para su protección y uso sostenible permitieron la recuperación de sus grupos familiares. A pesar de la importancia de este camélido en la economía de las comunidades locales y en el ámbito ecológico, no existen registros o evaluaciones sobre el estado genético de sus poblaciones, del que depende su éxito reproductivo y la calidad de su fibra. El empleo de microsatélites (STR's) permite establecer las relaciones de parentesco, el grado de consanguinidad y la variabilidad genética de una población. La presente investigación ha caracterizado tres STR's: LCA19, LCA05 y YLLW08 en dos grupos familiares de vicuñas de la provincia Pacajes (La Paz, Bolivia). Los resultados sugieren baja variabilidad y diversidad genética. El índice de parentesco calculado permitió identificar una familia (99.0662%) entre los 27 especímenes. Los estadísticos F mostraron diferenciación poco significativa entre los dos grupos y elevado grado de cnguinidad (FIS). Se recomienda extender la base de datos de frecuencias alélicas.
The vicuña (Vicugna vicugna) live in the high Andes of southern Peru, western Bolivia, northeastern Chile and northeastern Argentina, being exploited for their prized fiber. Recent laws for its protection and sustainable use permitted recovery of their families. Despite the importance of the camel in the economy of local communities and the ecological environment, there are no records or evaluation on the genetic status of their populations, on which depends their reproductive success and the quality of its fiber. The use of microsatellite (STR's) allows for kinship relations, the degree of inbreeding and genetic variability of a population. The present investigation characterized three STR's: LCA19, YLLW08 LCA05 in two family groups of vicuñas Pacajes province (La Paz, Bolivia). The results suggest low variability and genetic diversity. The index calculated relationship identified a family (99.0662%) of the 27 specimens. F statistics showed little significant difference between the two groups and high degree of inbreeding (FIS). It is recommended to extend the database of allele frequencies.
The vicuña (Vicugna vicugna) live in the high Andes of southern Peru, western Bolivia, northeastern Chile and northeastern Argentina, being exploited for their prized fiber. Recent laws for its protection and sustainable use permitted recovery of their families. Despite the importance of the camel in the economy of local communities and the ecological environment, there are no records or evaluation on the genetic status of their populations, on which depends their reproductive success and the quality of its fiber. The use of microsatellite (STR's) allows for kinship relations, the degree of inbreeding and genetic variability of a population. The present investigation characterized three STR's: LCA19, YLLW08 LCA05 in two family groups of vicuñas Pacajes province (La Paz, Bolivia). The results suggest low variability and genetic diversity. The index calculated relationship identified a family (99.0662%) of the 27 specimens. F statistics showed little significant difference between the two groups and high degree of inbreeding (FIS). It is recommended to extend the database of allele frequencies.
Description
Vol. 1, No. 2