129342 20231215094308.0 doi 10.1371/journal.pone.0251879 sideral 127142 ART-2021-127142 eng Revidatti, M.A. On the origins of American Criollo pigs: A common genetic background with a lasting Iberian signature 2021 American Criollo pigs are thought to descend mainly from those imported from the Iberian Peninsula starting in the late 15th century. Criollo pigs subsequently expanded throughout the Americas, adapting to very diverse environments, and possibly receiving influences from other origins. With the intensification of agriculture in the mid-20th century, cosmopolitan breeds largely replaced Criollo pigs, and the few remaining are mostly maintained by rural communities in marginal areas where they still play an important socio-economic and cultural role. In this study, we used 24 microsatellite markers in samples from 1715 pigs representing 46 breeds with worldwide distribution, including 17 American Criollo breeds, with the major focus of investigating their genetic diversity, structure and breed relationships. We also included representatives of the Iberian, Local British, Hungarian, Chinese and Commercial breeds, as well as Wild Boar, in order to investigate their possible influence in the genetic composition of Criollos. Our results show that, when compared with the other breeds, Criollo pigs present higher levels of genetic diversity, both in terms of allelic diversity and expected heterozygosity. The various analyses indicate that breed differentiation overall explains nearly 21% of the total genetic diversity. Criollo breeds showed their own identity and shared a common genetic background, tending to cluster together in various analyses, even though they differ from each other. A close relationship of Criollos with Iberian breeds was revealed by all the different analyses, and the contribution of Iberian breeds, particularly of the Celtic breeds, is still present in various Criollo breeds. No influence of Chinese breeds was detected on Criollos, but a few were influenced by Commercial breeds or by wild pigs. Our results confirm the uniqueness of American Criollo pigs and the role that Iberian breeds have played in their development. © 2021 Revidatti et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.752 2021 MULTIDISCIPLINARY SCIENCES 29 / 74 = 0.392 2021 Q2 T2 0.852 2021 Multidisciplinary 2021 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Gama, L.T. Martín Burriel I. Universidad de Zaragoza (orcid)0000-0001-6016-4726 Cortés Gardyn, O. Cappello Villada, J.S. Carolino, M.I. Cañón, F.J. Ginja, C. Sponenberg, P. Vicente, A.P. Zaragoza, P. Universidad de Zaragoza (orcid)0000-0001-5740-0185 Delgado, J.V. Martínez, A. Alvarez, L.A. Barba Capote, C. Carolino, N. Dunner, S. Sevane, N. Forero Vizcaíno, F.J. Galíndez, R. Gómez, M. Llambí, S. Montenegro, M. Montes-Sánchez, J.J. Pérez Pineda, E. Ponce Alvarado, A.P. Pons, Á. Peinado Ramón, B. Rodellar, C. Universidad de Zaragoza (orcid)0000-0003-3289-2675 Sierra Vasquez, A. Sousa, C.O. Silva, F.S. Martínez Martínez, A. 1001 420 Universidad de Zaragoza Dpto. Anatom.,Embri.Genét.Ani. Área Genética 16, 5 (2021), e0251879[20 pp] PLoS One PLoS ONE 1932-6203 1561823 http://zaguan.unizar.es/record/129342/files/texto_completo.pdf Versión publicada 2668908 http://zaguan.unizar.es/record/129342/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:129342 articulos driver 2023-12-14-13:18:51 ARTICLE