A comprehensive analysis of the genetic diversity and environmental adaptability in worldwide Merino and Merino-derived sheep breeds

Springer Science and Business Media LLC - Tập 55 - Trang 1-18 - 2023
Simone Ceccobelli1, Vincenzo Landi2, Gabriele Senczuk3, Salvatore Mastrangelo4, Maria Teresa Sardina4, Slim Ben-Jemaa5, Christian Persichilli3, Taki Karsli6, Valentin-Adrian Bâlteanu7, María Agustina Raschia8, Mario Andrés Poli8, Gabriel Ciappesoni9, Farai Catherine Muchadeyi10, Edgar Farai Dzomba11, Nokuthula Winfred Kunene12, Gesine Lühken13, Tatiana Evgenievna Deniskova14, Arsen Vladimirovich Dotsev14, Natalia Anatolievna Zinovieva14, Attila Zsolnai15, István Anton15, Szilvia Kusza16, Nuno Carolino17, Fátima Santos-Silva17, Aldona Kawęcka18, Marcin Świątek19, Roman Niżnikowski19, Marija Špehar20, Gabriel Anaya21, Antonio Granero22, Tiago Perloiro23, Pedro Cardoso24, Silverio Grande25, Beatriz López de los Santos26, Coralie Danchin-Burge27, Marina Pasquini1, Amparo Martínez Martínez28, Juan Vicente Delgado Bermejo28, Emiliano Lasagna29, Elena Ciani30, Francesca Maria Sarti29, Fabio Pilla3
1Department of Agricultural, Food and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
2Department of Veterinary Medicine, University of Bari “Aldo Moro”, Valenzano, Italy
3Department of Agricultural, Environmental and Food Sciences, University of Molise, Campobasso, Italy
4Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy
5Laboratoire des Productions Animales et Fourragères, Institut National de la Recherche Agronomique de Tunisie, Université de Carthage, Ariana, Tunisia
6Department of Animal Science, Faculty of Agriculture, Eskisehir Osmangazi University, Eskisehir, Turkey
7Laboratory of Genomics, Biodiversity, Animal Breeding and Molecular Pathology, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca, Romania
8Instituto de Genética “Ewald A. Favret”, Instituto Nacional de Tecnología Agropecuaria, CICVyA-CNIA, Hurlingham, Buenos Aires, Argentina
9Instituto Nacional de Investigación Agropecuaria, Canelones, Uruguay
10Agricultural Research Council - Biotechnology Platform, Pretoria, South Africa
11Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
12Department of Agriculture, University of Zululand, Kwadlangezwa, South Africa
13Institute of Animal Breeding and Genetics, Justus Liebig University, Giessen, Germany
14L.K. Ernst Federal Research Center for Animal Husbandry, Podolsk, Russian Federation
15Department of Animal Breeding, Institute of Animal Science, Hungarian University of Agriculture and Life Sciences, Herceghalom, Hungary
16Centre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Debrecen, Hungary
17Instituto Nacional de Investigação Agrária e Veterinária, Vale de Santarém, Portugal
18Department of Sheep and Goat Breeding, National Research Institute of Animal Production, Kraków, Poland
19Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences-SGGW, Warsaw, Poland
20Croatian Agency for Agriculture and Food, Zagreb, Croatia
21MERAGEM Group, Department of Genetics, University of Córdoba, Córdoba, Spain
22Asociación Nacional de Criadores de Ganado Merino (ACME), Madrid, Spain
23Associação Nacional de Criadores de Ovinos da Raça Merina (ANCORME), Évora, Portugal
24Associação de Produtores Agropecuários (OVIBEIRA), Castelo Branco, Portugal
25Associazione Nazionale della Pastorizia (ASSONAPA), Rome, Italy
26Departamento de Investigación y Desarrollo, EA GROUP SC, Villanueva de la Serena, Spain
27Institut de l’Elevage, Paris Cedex 12, France
28Departamento de Genética, Universidad de Córdoba, Córdoba, Spain
29Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
30Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari “Aldo Moro”, Bari, Italy

Tóm tắt

To enhance and extend the knowledge about the global historical and phylogenetic relationships between Merino and Merino-derived breeds, 19 populations were genotyped with the OvineSNP50 BeadChip specifically for this study, while an additional 23 populations from the publicly available genotypes were retrieved. Three complementary statistical tests, Rsb (extended haplotype homozygosity between-populations), XP-EHH (cross-population extended haplotype homozygosity), and runs of homozygosity (ROH) islands were applied to identify genomic variants with potential impact on the adaptability of Merino genetic type in two contrasting climate zones. The results indicate that a large part of the Merino’s genetic relatedness and admixture patterns are explained by their genetic background and/or geographic origin, followed by local admixture. Multi-dimensional scaling, Neighbor-Net, Admixture, and TREEMIX analyses consistently provided evidence of the role of Australian, Rambouillet and German strains in the extensive gene introgression into the other Merino and Merino-derived breeds. The close relationship between Iberian Merinos and other South-western European breeds is consistent with the Iberian origin of the Merino genetic type, with traces from previous contributions of other Mediterranean stocks. Using Rsb and XP-EHH approaches, signatures of selection were detected spanning four genomic regions located on Ovis aries chromosomes (OAR) 1, 6 and 16, whereas two genomic regions on OAR6, that partially overlapped with the previous ones, were highlighted by ROH islands. Overall, the three approaches identified 106 candidate genes putatively under selection. Among them, genes related to immune response were identified via the gene interaction network. In addition, several candidate genes were found, such as LEKR1, LCORL, GHR, RBPJ, BMPR1B, PPARGC1A, and PRKAA1, related to morphological, growth and reproductive traits, adaptive thermogenesis, and hypoxia responses. To the best of our knowledge, this is the first comprehensive dataset that includes most of the Merino and Merino-derived sheep breeds raised in different regions of the world. The results provide an in-depth picture of the genetic makeup of the current Merino and Merino-derived breeds, highlighting the possible selection pressures associated with the combined effect of anthropic and environmental factors. The study underlines the importance of Merino genetic types as invaluable resources of possible adaptive diversity in the context of the occurring climate changes.

Tài liệu tham khảo

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