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.
N1 - Publisher Copyright:
© c 2023 The Authors.
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.
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 -