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秘鲁南部瓦卡亚羊驼基于微卫星的遗传多样性和种群结构

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

作者信息

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

机构信息

Dirección de Desarrollo Tecnológico Agrario, Instituto Nacional de Innovación Agraria (INIA), Av. La Molina 1981, Lima 15024, Peru.

Dirección de Desarrollo Tecnológico Agrario, Instituto Nacional de Innovación Agraria (INIA), Estación Experimental Agraria Illpa, Puno 21002, Peru.

出版信息

Animals (Basel). 2023 May 5;13(9):1552. doi: 10.3390/ani13091552.

DOI:10.3390/ani13091552
PMID:37174589
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10177232/
Abstract

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.

摘要

羊驼群体主要由瓦卡亚表型组成，广泛分布于秘鲁南部。本研究旨在分别使用14个和12个微卫星标记来估计两个瓦卡亚羊驼群体（阿乔亚尼和金萨查塔）的遗传多样性和群体结构。总共168份羊驼生物样本外包给秘鲁实验室进行DNA提取和基因分型。对于遗传多样性，估计了观察杂合度（H）、期望杂合度（H）、多态信息含量（PIC）和固定指数值。进行了混合分析以进行群体结构分析。使用不同的程序进行这些估计。总共发现了133个（阿乔亚尼）和129个（金萨查塔）等位基因，每个位点的范围为4至17个。阿乔亚尼每个标记的平均H、H和PIC分别为0.764±0.112、0.771±0.1和0.736；对于金萨查塔，它们分别为0.783±0.087、0.773±0.095和0.738。群体结构在K = 2时未显示出结构。本研究为制定合适的羊驼保护计划提供了有用的指标。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/060824163a4b/animals-13-01552-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/3c76a80dad09/animals-13-01552-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/4ee69e57a42e/animals-13-01552-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/060824163a4b/animals-13-01552-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/3c76a80dad09/animals-13-01552-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/4ee69e57a42e/animals-13-01552-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f8f8/10177232/060824163a4b/animals-13-01552-g003.jpg

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