Microsatellite-Based Genetic Diversity and Population Structure of Huacaya Alpacas ( Vicugna pacos ) in Southern Peru

The alpaca population mostly consists of the Huacaya phenotype and is widely distributed in Southern Peru. This study aimed to estimate the genetic diversity and population structure of two Huacaya alpaca populations (Ajoyani and Quimsachata) using fourteen and twelve microsatellite markers for each...

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Bibliographic Details
Published in:Animals (Basel) 2023-05, Vol.13 (9), p.1552
Main Authors: Figueroa, Deyanira, Corredor, Flor-Anita, Mamani-Cato, Ruben H, Gallegos-Acero, Roberto F, Condori-Rojas, Nicoll, Estrada, Richard, Heredia, Lizeth, Salazar, Wilian, Quilcate, Carlos, Arbizu, Carlos I
Format: Article
Language:English
Subjects:
Alpaca
Alpacas
Andean region
Animals
Biological diversity
Biological properties
Biological samples
camelids
Capillary electrophoresis
Conservation
Deoxyribonucleic acid
DNA
Genetic diversity
Genetic markers
Genetic testing
genetics
Genotyping
Germplasm
Heterozygosity
Indicators
Livestock
Microsatellites
Phenotypes
Polymorphism
Population
Population genetics
Population structure
Populations
SSR
Structural analysis
Sustainable development
Sustainable use
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Summary:The alpaca population mostly consists of the Huacaya phenotype and is widely distributed in Southern Peru. This study aimed to estimate the genetic diversity and population structure of two Huacaya alpaca populations (Ajoyani and Quimsachata) using fourteen and twelve microsatellite markers for each population, respectively. A total of 168 alpaca biological samples were outsourced to Peruvian laboratories for DNA extraction and genotyping. For genetic diversity, observed heterozygosity (H ), expected heterozygosity (H ), polymorphism information content (PIC), and fixation indices values were estimated. An admixture analysis was performed for the population structure analysis. Different programs were used for these estimations. In total, 133 (Ajoyani) and 129 (Quimsachata) alleles were found, with a range of 4 to 17 by locus. The mean H , H , and PIC per marker for Ajoyani were 0.764 ± 0.112, 0.771 ± 0.1, and 0.736; for Quimsachata, they were 0.783 ± 0.087, 0.773 ± 0.095, and 0.738, respectively. The population structure showed no structure with K = 2. This study provides useful indicators for the creation of appropriate alpaca conservation programs.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani13091552