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

Fernando Lopes; R. Larissa Oliveira; Yago Beux; Amanda Kessler; Susana Cárdenas-Alayza; Patricia Majluf; Diego Páez-Rosas; Jaime Chaves; Enrique Crespo; Robert L. Brownell; Alastair M.M. Baylis; Maritza Sepúlveda; Valentina Franco-Trecu; Carolina Loch; Bruce C. Robertson; Claire R. Peart; Jochen B.W. Wolf; Sandro L. Bonatto

doi:10.1126/sciadv.adf6601

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

Fernando Lopes^*
, R. Larissa Oliveira
, Yago Beux
, Amanda Kessler
, Susana Cárdenas-Alayza
, Patricia Majluf
, Diego Páez-Rosas
, Jaime Chaves
, Enrique Crespo
, Robert L. Brownell
, Alastair M.M. Baylis
, Maritza Sepúlveda
, Valentina Franco-Trecu
, Carolina Loch
, Bruce C. Robertson
, Claire R. Peart
, Jochen B.W. Wolf
, Sandro L. Bonatto^*

^*Corresponding author for this work

Pontifícia Universidade Católica do Rio Grande do Sul
Universidade do Vale do Rio dos Sinos
University of Helsinki
Grupo de Estudos de Mamiferos Aquaticos Do Rio Grande Do sul (GEMARS)
Universidad Peruana Cayetano Heredia
Direccion Parque Nacional Galapagos
Galápagos Science Center
San Francisco State University
Consejo Nacional de Investigaciones Científicas y Técnicas
National Oceanic and Atmospheric Administration
South Atlantic Environmental Research Institute
Universidad de Valparaíso
Universidad de la República
Faculty of Dentistry
University of Otago
Ludwig Maximilian University of Munich

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

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.

Original language	English
Article number	eadf6601
Journal	Science Advances
Volume	9
Issue number	18
DOIs	https://doi.org/10.1126/sciadv.adf6601
State	Published - 3 May 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Keywords

Animals
Fur Seals/genetics
Hybridization, Genetic
Genomics
Squalene
Chile
Genetic Speciation

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10.1126/sciadv.adf6601

Cite this

Lopes, F., Oliveira, R. L., Beux, Y., Kessler, A., Cárdenas-Alayza, S., Majluf, P., Páez-Rosas, D., Chaves, J., Crespo, E., Brownell, R. L., Baylis, A. M. M., Sepúlveda, M., Franco-Trecu, V., Loch, C., Robertson, B. C., Peart, C. R., Wolf, J. B. W., & Bonatto, S. L. (2023). Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator. Science Advances, 9(18), Article eadf6601. https://doi.org/10.1126/sciadv.adf6601

@article{facab6b6441546b68e74c38600ab8beb,

title = "Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator",

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.",

keywords = "Animals, Fur Seals/genetics, Hybridization, Genetic, Genomics, Squalene, Chile, Genetic Speciation",

author = "Fernando Lopes and Oliveira, \{R. Larissa\} and Yago Beux and Amanda Kessler and Susana C{\'a}rdenas-Alayza and Patricia Majluf and Diego P{\'a}ez-Rosas and Jaime Chaves and Enrique Crespo and Brownell, \{Robert L.\} and Baylis, \{Alastair M.M.\} and Maritza Sep{\'u}lveda and Valentina Franco-Trecu and Carolina Loch and Robertson, \{Bruce C.\} and Peart, \{Claire R.\} and Wolf, \{Jochen B.W.\} and Bonatto, \{Sandro L.\}",

note = "Publisher Copyright: {\textcopyright} c 2023 The Authors.",

year = "2023",

month = may,

day = "3",

doi = "10.1126/sciadv.adf6601",

language = "Ingl{\'e}s",

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Lopes, F, Oliveira, RL, Beux, Y, Kessler, A, Cárdenas-Alayza, S, Majluf, P, Páez-Rosas, D , Chaves, J, Crespo, E, Brownell, RL, Baylis, AMM, Sepúlveda, M, Franco-Trecu, V, Loch, C, Robertson, BC, Peart, CR, Wolf, JBW & Bonatto, SL 2023, 'Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator', Science Advances, vol. 9, no. 18, eadf6601. https://doi.org/10.1126/sciadv.adf6601

TY - JOUR

T1 - Genomic evidence for homoploid hybrid speciation in a marine mammal apex predator

AU - Lopes, Fernando

AU - Oliveira, R. Larissa

AU - Beux, Yago

AU - Kessler, Amanda

AU - Cárdenas-Alayza, Susana

AU - Majluf, Patricia

AU - Páez-Rosas, Diego

AU - Chaves, Jaime

AU - Crespo, Enrique

AU - Brownell, Robert L.

AU - Baylis, Alastair M.M.

AU - Sepúlveda, Maritza

AU - Franco-Trecu, Valentina

AU - Loch, Carolina

AU - Robertson, Bruce C.

AU - Peart, Claire R.

AU - Wolf, Jochen B.W.

AU - Bonatto, Sandro L.

PY - 2023/5/3

Y1 - 2023/5/3

N2 - 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.

AB - 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.

KW - Animals

KW - Fur Seals/genetics

KW - Hybridization, Genetic

KW - Genomics

KW - Squalene

KW - Chile

KW - Genetic Speciation

UR - https://www.scopus.com/pages/publications/85159546682

U2 - 10.1126/sciadv.adf6601

DO - 10.1126/sciadv.adf6601

M3 - Artículo

C2 - 37134171

AN - SCOPUS:85159546682

SN - 2375-2548

VL - 9

JO - Science Advances

JF - Science Advances

IS - 18

M1 - eadf6601

ER -

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

Abstract

UN SDGs

Keywords

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