Conservation priorities of Iberoamerican pig breeds and their ancestors based on microsatellite information

Abstract

for the BioPig Consortium 10Criollo pig breeds are descendants from pigs brought to the American continent starting with Columbus second trip in 1493. Pigs currently play a key role in social economy and community cultural identity in Latin America. The aim of this study was to establish conservation priorities among a comprehensive group of Criollo pig breeds based on a set of 24 microsatellite markers and using different criteria. Spain and Portugal pig breeds, wild boar populations of different European geographic origins and commercial pig breeds were included in the analysis as potential genetic influences in the development of Criollo pig breeds. Different methods, differing in the weight given to within-and between-breed genetic variability, were used in order to estimate the contribution of each breed to global genetic diversity. As expected, the partial contribution to total heterozygosity gave high priority to Criollo pig breeds, whereas Weitzman procedures prioritized Iberian Peninsula breeds. With the combined within-and between-breed approaches, different conservation priorities were achieved. The Core Set methodologies highly prioritized Criollo pig breeds (Cr. Boliviano, Cr. Pacifico, Cr. Cubano and Cr. Guadalupe). However, weighing the between-and within-breed components with F ST and 1-F ST , respectively, resulted in higher contributions of Iberian breeds. In spite of the different conservation priorities according to the methodology used, other factors in addition to genetic information also need to be considered in conservation programmes, such as the economic, cultural or historical value of the breeds involved.

Research Article Genetic diversity of three indigenous pig breeds in Colombia

“…The mean He and Ho values obtained for CM (0.69±0.03 and 0.70±0.04), SP (0.76±0.02 and 0.74±0.03) and ZU pigs (0.71±0.04 and 0.68±0.05) were higher than the values found in Ecuadorian creole pigs (0.66 and 0.60, respectively) (Vargas et al, 2016), and Uruguayan Pampa Rocha pigs (0.60 and 0.58, respectively) (Montenegro et al, 2015). This shows the high degree of genetic variability of these Colombian pig breeds, which can also be corroborated by comparing heterozygosity values with the comprehensive list of genetic diversity indicators made by Cortés et al (2016) for 45 Ibero-American pig breeds. In SP and ZU pigs, Ho was slightly higher than He, indicating some degree of inbreeding within these populations.…”

“…Genetic diversity studies using microsatellites have been made of Brazilian (Silva et al, 2011), Uruguayan (Montenegro et al, 2015), Chinese (Jiang et al, 2015), Indian (Sahoo et al, 2016) and Croatian (Margeta et al, 2018) indigenous pig breeds. Moreover, a very comprehensive study on the conservation priorities of Ibero-American pig breeds based on microsatellite information was carried out by Cortés et al (2016).Along the same line, we characterized the genetic diversity and genetic structure of three Colombian indigenous pig breeds using a set of 10 microsatellites.…”

Semen quality of Colombian Creole as compared to commercial pig breeds

“…However, there is still a lack of research concerning their genetic characterization, conservation and use. It is known that Creole breeds show an acceptable reproductive performance but slow growth (4,19) which partly can be explained because they are usually produced in family or traditional farms, where feeding and management practices are far from optimal. Moreover, owing to their limited herd size, these farms do not often have at their disposal a boar available (2) or adaptable to their resource-driven production systems (20).…”

A Portfolio Framework for Prioritizing Conservation Efforts for Yellowstone Cutthroat Trout Populations

“…; Cortes et al. ). Biological criteria constitute a key component of the prioritization process, but concomitantly, the criteria can vary substantially across target taxa (e.g., Taylor et al.…”