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Ecological Speciali...
Ecological Specialization and Evolutionary Reticulation in Extant Hyaenidae
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- Westbury, Michael V (författare)
- Department of Mathematics and Natural Sciences, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany;Section for Evolutionary Genomics, The GLOBE Institute, University of Copenhagen, Copenhagen, Denmark
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- Le Duc, Diana (författare)
- Institute of Human Genetics, University Medical Center Leipzig, Leipzig, Germany;Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
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- Duchêne, David A (författare)
- Section for Evolutionary Genomics, The GLOBE Institute, University of Copenhagen, Copenhagen, Denmark;Research School of Biology, Australian National University, Canberra, ACT, Australia
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- Krishnan, Arunkumar (författare)
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA;Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Berhampur, Odisha, India
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- Prost, Stefan (författare)
- LOEWE-Center for Translational Biodiversity Genomics, Senckenberg, Frankfurt, Germany;South African National Biodiversity Institute, National Zoological Garden, Pretoria, South Africa
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- Rutschmann, Sereina (författare)
- Department of Mathematics and Natural Sciences, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
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- Grau, Jose H (författare)
- Department of Mathematics and Natural Sciences, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany;Amedes Genetics, amedes Medizinische Dienstleistungen, Berlin, Germany
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- Dalén, Love (författare)
- Naturhistoriska riksmuseet,Enheten för bioinformatik och genetik,Centre for Palaeogenetics, Stockholm, Sweden;Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
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- Weyrich, Alexandra (författare)
- Department of Evolutionary Genetics, Leibniz Institute for Zoo and Wildlife Research (IZW), Berlin, Germany
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- Norén, Karin (författare)
- Stockholms universitet,Zoologiska institutionen,Department of Zoology, Stockholm University, Stockholm, Sweden
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- Werdelin, Lars (författare)
- Naturhistoriska riksmuseet,Enheten för paleobiologi
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- Dalerum, Fredrik (författare)
- Stockholms universitet,Zoologiska institutionen,Department of Zoology, Stockholm University, Stockholm, Sweden;Research Unit of Biodiversity (UO-CSIC-PA), Mieres Campus, University of Oviedo, Mieres, Asturias, Spain;Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, South Africa
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- Schöneberg, Torsten (författare)
- Rudolf Schönheimer Institute of Biochemistry, Molecular Biochemistry, Medical Faculty, Leipzig, Germany
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- Hofreiter, Michael (författare)
- Department of Mathematics and Natural Sciences, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
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(creator_code:org_t)
- 2021-02-24
- 2021
- Engelska.
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Ingår i: Molecular biology and evolution. - : Oxford University Press (OUP). - 0737-4038 .- 1537-1719. ; 38:9, s. 3884-3897
- Relaterad länk:
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- During the Miocene, Hyaenidae was a highly diverse family of Carnivora that has since been severely reduced to four species: the bone-cracking spotted, striped, and brown hyenas, and the specialized insectivorous aardwolf. Previous studies investigated the evolutionary histories of the spotted and brown hyenas, but little is known about the remaining two species. Moreover, the genomic underpinnings of scavenging and insectivory, defining traits of the extant species, remain elusive. Here, we generated an aardwolf genome and analyzed it together with the remaining three species to reveal their evolutionary relationships, genomic underpinnings of their scavenging and insectivorous lifestyles, and their respective genetic diversities and demographic histories. High levels of phylogenetic discordance suggest gene flow between the aardwolf lineage and the ancestral brown/striped hyena lineage. Genes related to immunity and digestion in the bone-cracking hyenas and craniofacial development in the aardwolf showed the strongest signals of selection, suggesting putative key adaptations to carrion and termite feeding, respectively. A family-wide expansion in olfactory receptor genes suggests that an acute sense of smell was a key early adaptation. Finally, we report very low levels of genetic diversity within the brown and striped hyenas despite no signs of inbreeding, putatively linked to their similarly slow decline in effective population size over the last ∼2 million years. High levels of genetic diversity and more stable population sizes through time are seen in the spotted hyena and aardwolf. Taken together, our findings highlight how ecological specialization can impact the evolutionary history, demographics, and adaptive genetic changes of an evolutionary lineage.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- Genetics
- Molecular Biology
- Ecology
- Evolution
- Behavior and Systematics
- adaptation
- comparative genomics
- genetic diversity
- genome
- hyena
- phylogenomics
- Ecosystems and species history
- Ekosystem och arthistoria
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Av författaren/redakt...
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Westbury, Michae ...
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Le Duc, Diana
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Duchêne, David A
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Krishnan, Arunku ...
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Prost, Stefan
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Rutschmann, Sere ...
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Grau, Jose H
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Dalén, Love
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Weyrich, Alexand ...
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Norén, Karin
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Werdelin, Lars
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Dalerum, Fredrik
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Schöneberg, Tors ...
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Hofreiter, Micha ...
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NATURVETENSKAP
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Molecular biolog ...
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Naturhistoriska riksmuseet
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Stockholms universitet