Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator-Reference-Cited by-同舟云学术

Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator

Published:2023-05-05 Issue:18 Volume:9 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

Lopes Fernando¹²³^ORCID,Oliveira Larissa R.³⁴^ORCID,Beux Yago¹,Kessler Amanda¹^ORCID,Cárdenas-Alayza Susana⁵⁶,Majluf Patricia⁵,Páez-Rosas Diego⁷⁸^ORCID,Chaves Jaime⁷⁹¹⁰,Crespo Enrique¹¹^ORCID,Brownell Robert L.¹²^ORCID,Baylis Alastair M. M.¹³^ORCID,Sepúlveda Maritza¹⁴^ORCID,Franco-Trecu Valentina¹⁵^ORCID,Loch Carolina¹⁶^ORCID,Robertson Bruce C.¹⁷^ORCID,Peart Claire R.¹⁸^ORCID,Wolf Jochen B. W.¹⁸^ORCID,Bonatto Sandro L.¹^ORCID

Affiliation:

1. Escola de Ciências da Saúde e da Vida, Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Porto Alegre, Brazil.

2. Laboratório de Ecologia de Mamíferos, Universidade do Vale do Rio dos Sinos, São Leopoldo, Brazil.

3. Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland.

4. Grupo de Estudos de Mamíferos Aquáticos do Rio Grande do Sul (GEMARS), Torres, Brazil.

5. Centro para la Sostenibilidad Ambiental, Universidad Peruana Cayetano Heredia, Lima, Peru.

6. Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima, Peru.

7. Colegio de Ciencias Biológicas y Ambientales, COCIBA, Universidad San Francisco de Quito, Quito, Ecuador.

8. Dirección del Parque Nacional Galápagos, Oficina Técnica San Cristobal, Islas Galápagos, Ecuador.

9. Galapagos Science Center, Puerto Baquerizo Moreno, Ecuador.

10. Department of Biology, San Francisco State University, 1800 Holloway Ave, San Francisco, CA, USA.

11. Laboratório de Mamíferos Marinos, CESIMAR - CCT CENPAT, CONICET, Puerto Madryn, Argentina.

12. Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA, USA.

13. South Atlantic Environmental Research Institute, Stanley, Falkland Islands.

14. Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile.

15. Departamento de Ecología y Evolución, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.

16. Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand.

17. Department of Zoology, University of Otago, Dunedin, New Zealand.

18. Division of Evolutionary Biology, LMU Munich, München, Germany.

Abstract

Hybridization is widespread and constitutes an important source of genetic variability and evolution. In animals, its role in generating novel and independent lineages (hybrid speciation) has been strongly debated, with only a few cases supported by genomic data. The South American fur seal (SAfs) Arctocephalus australis is a marine apex predator of Pacific and Atlantic waters, with a disjunct set of populations in Peru and Northern Chile [Peruvian fur seal (Pfs)] with controversial taxonomic status. We demonstrate, using complete genome and reduced representation sequencing, that the Pfs is a genetically distinct species with an admixed genome that originated from hybridization between the SAfs and the Galapagos fur seal ( Arctocephalus galapagoensis ) ~400,000 years ago. Our results strongly support the origin of Pfs by homoploid hybrid speciation over alternative introgression scenarios. This study highlights the role of hybridization in promoting species-level biodiversity in large vertebrates.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Link

https://www.science.org/doi/pdf/10.1126/sciadv.adf6601

Reference97 articles.

1. Hybrid speciation

2. Hybridization as an invasion of the genome

3. Hybridization and speciation

4. Variation and constraints in hybrid genome formation

5. Eukaryote hybrid genomes

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