Phylogenomics and the Genetic Architecture of the Placental Mammal Radiation

Annual Review of Animal Biosciences, Journal Year: 2020, Volume and Issue: 9(1), P. 29 - 53

Published: Nov. 24, 2020

The genomes of placental mammals are being sequenced at an unprecedented rate. Alignments hundreds, and one day thousands, spanning the rich living extinct diversity species offer unparalleled power to resolve phylogenetic controversies, identify genomic innovations adaptation, dissect genetic architecture reproductive isolation. We highlight outstanding questions about earliest phases mammal diversification promise newer methods, as well remaining challenges, toward using whole genome data phylogeny. next phase mammalian comparative genomics will see completion application finished-quality, gapless assemblies from many ordinal lineages closely related species. Interspecific comparisons between most hypervariable loci likely reveal large, but heretofore mostly underappreciated, effects on population divergence, morphological innovation, origin new

Language: Английский

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The myth of wild dogs in Australia: are there any out there?

Australian Mammalogy, Journal Year: 2021, Volume and Issue: 44(1), P. 67 - 75

Published: March 25, 2021

Hybridisation between wild and domestic canids is a global conservation management issue. In Australia, dingoes are distinct lineage of wild-living canid with controversial domestication status. They mainland Australia’s apex terrestrial predator. There ongoing concern that the identity has been threatened from breeding dogs, feral dogs have established populations in rural Australia. We collate results microsatellite DNA testing 5039 to explore patterns dog ancestry observations across continent. Only 31 were detected, challenging perception widespread First generation dingo × hybrids similarly rare, only 27 individuals identified. Spatial genetic Australia identified northern, western central largely free introgression. Our findings challenge virtually extinct common. A shift terminology would better reflect these allow more nuanced debate about balance

Language: Английский

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Tracing Eastern Wolf Origins From Whole-Genome Data in Context of Extensive Hybridization

Molecular Biology and Evolution, Journal Year: 2023, Volume and Issue: 40(4)

Published: April 1, 2023

Southeastern Canada is inhabited by an amalgam of hybridizing wolf-like canids, raising fundamental questions regarding their taxonomy, origins, and timing hybridization events. Eastern wolves (Canis lycaon), specifically, have been the subject significant controversy, being viewed as either a distinct taxonomic entity conservation concern or recent hybrid coyotes (C. latrans) grey lupus). Mitochondrial DNA analyses show some evidence eastern North American evolved canids. In contrast, nuclear genome studies indicate are best described entity, but with unclear To test hypotheses related to these competing findings we sequenced whole genomes 25 individuals, representative extant Canadian canid types known origin levels contemporary hybridization. Here present data describing that separately from for past ∼67,000 years admixture event ∼37,000 ago. We Great Lakes originated product between after last glaciation (∼8,000 ago) while "western" during century. wolf appear shaped historical gene flow coyotes, yet evolutionary uniqueness remains among currently inhabiting restricted range in southeastern Canada.

Language: Английский

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Genome‐wide variant analyses reveal new patterns of admixture and population structure in Australian dingoes

Molecular Ecology, Journal Year: 2023, Volume and Issue: 32(15), P. 4133 - 4150

Published: May 29, 2023

Abstract Admixture between species is a cause for concern in wildlife management. Canids are particularly vulnerable to interspecific hybridisation, and genetic admixture has shaped their evolutionary history. Microsatellite DNA testing, relying on small number of markers geographically restricted reference populations, identified extensive domestic dog Australian dingoes driven conservation management policy. But there exists that geographic variation dingo genotypes could confound ancestry analyses use markers. Here, we apply genome‐wide single‐nucleotide polymorphism (SNP) genotyping set 402 wild captive collected from across Australia then carry out comparisons dogs. We perform modelling biogeographic characterise population structure investigate the extent dogs different regions continent. show at least five distinct populations Australia. observed limited evidence dingoes. Our work challenges previous reports regarding occurrence dingoes, as our assessments severely overestimate degree south‐eastern These findings strongly support SNP refined method managers policymakers assess inform policy legislation moving forwards.

Language: Английский

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Potential Adaptive Introgression From Dogs in Iberian Grey Wolves (Canis lupus)

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

ABSTRACT Invading species along with increased anthropogenization may lead to hybridization events between wild and closely related domesticates. As a consequence, carry introgressed alleles from domestic species, which is generally assumed yield adverse effects in populations. The opposite evolutionary adaptive introgression, where genes are positively selected the possible but has rarely been documented. Grey wolves ( Canis lupus ) widely distributed across Holarctic frequently coexist their close relative, dog C. familiaris ). Despite ample opportunity, occurs most Here we studied geographically isolated grey of Iberian Peninsula, who have coexisted large population loosely controlled dogs for thousands years human‐modified landscape. We assessed extent impact introgression on current wolf by analysing 150 whole genomes other Eurasian as well originating Europe western Siberia. identified almost no recent small (< 5%) overall ancient ancestry. Using combination single scan statistics ancestry enrichment estimates, positive selection six DAPP1 , NSMCE4A MPPED2 PCDH9 MBTPS1 CDH13 dogs. include functions immune response brain functions, explain some unique behavioural phenotypes such reduced dispersal compared

Language: Английский

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Morphometric evidence for the differentiation of the Himalayan wolf Canis lupus chanco (Canidae; Carnivora)

Mammal Research, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Language: Английский

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Species assignment in forensics and the challenge of hybrids

Forensic Science International Genetics, Journal Year: 2020, Volume and Issue: 48, P. 102333 - 102333

Published: June 17, 2020

Language: Английский

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The value of hybrid genomes: Building two highly contiguous reference genome assemblies to advance Canis genomic studies

Journal of Heredity, Journal Year: 2024, Volume and Issue: 115(4), P. 480 - 486

Published: Feb. 28, 2024

Abstract Previous studies of canid population and evolutionary genetics have relied on high-quality domestic dog reference genomes that been produced primarily for biomedical trait mapping in breeds. However, the absence highly contiguous from other Canis species like gray wolf coyote, represent additional distinct demographic histories, may bias inferences regarding interspecific genetic diversity phylogenetic relationships. Here, we present single haplotype de novo genome assemblies generated by applying trio-binning approach to long sequence reads a female first-generation hybrid coyote mating. The were contiguous, with contig N50 sizes 44.6 42.0 Mb respectively. Genome scaffolding alignments between two published showed near complete collinearity, one exception: coyote-specific chromosome fission 13 fusion proximal portion 8, retaining Canis-typical haploid number 2n = 78. We evaluated quality previous RADseq data 334 canids found nearly identical patterns among regional populations regardless used alignment (dog, or wolf). These novel will be important resources proper accurate inference demography, taxonomic evaluation, conservation genetics.

Language: Английский

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North American Wolves

Published: Jan. 1, 2023

The postcranial skeleton of the wolf is strongly linked to locomotor behaviors and, therefore, their hunting strategies.Wolves are coursing predators that obtain food by chasing prey.It can sometimes take days or even weeks locate suitable prey (Mech et al. 2015, Johnson 2017).Their maximum running speed 55-70 km/hr (35-44 mi/hr; Mech 1974a), but typical travel speeds 4-9 (3-6 1994, Musiani 1998). Vander Vennen (2016) demonstrated much variation in killing rates moose (Alces alces) wolves was explained movement wolves.Wolves have excellent senses smell, vision, and hearing, use any all these prey, depending on circumstances (Asa 1995, Harrington Asa 2003, 2007a, 2015).Use observation an important stage behavior, especially when pursuing large such as bison (Bison bison;MacNulty 2007).

Language: Английский

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Population genetics of the African wolf (Canis lupaster) across its range: first evidence of hybridization with domestic dogs in Africa

Mammalian Biology, Journal Year: 2020, Volume and Issue: 100(6), P. 645 - 658

Published: Sept. 3, 2020

Language: Английский

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