ArticleScientific reports2017
The evolutionary history of bears is characterized by gene flow across species.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.
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78 citing papers in PubMed, 223 citations in OpenAlex.
- Whole-Genome Sequencing Revealed Local Genetic Differences and Multi-Layered Genetic Structure in Asian Brown Bear (Ursus arctos) Populations.Genome biology and evolution · 2026Article
- Pseudogenes document protracted parallel regression of oral anatomy in myrmecophagous mammals.Molecular biology and evolution · 2026Article
- Diverging transposon activity among polar bear sub-populations inhabiting different climate zones.Mobile DNA · 2025Article
- Chromosome-scale Genomes Show Rapid Diversification and Ancient Gene Flow Among Bear Species.Genome biology and evolution · 2025Article
- Effects of the Ecuadorian Andes on genetic structure of the spectacled bear with new genetic datasets.Scientific reports · 2025Article
- Linking Measures of Inbreeding and Genetic Load to Demographic Histories Across Three Species of Bears.Evolutionary applications · 2025Article
- The Genomic Signature of Demographic Decline in a Long-Distance Migrant in a Range-Extreme Population.Molecular ecology · 2025Article
- Article
- Epigenetic Clock in Bears: A Simple Cost-Effective Blood DNA Methylation-Based Age Estimation Method Applicable to Multiple Bear Species.Ecology and evolution · 2025Article
- Exon Capture Museomics Deciphers the Nine-Banded Armadillo Species Complex and Identifies a New Species Endemic to the Guiana Shield.Systematic biology · 2025Article
- Divergence in Regulatory Regions and Gene Duplications May Underlie Chronobiological Adaptation in Desert Tortoises.Molecular ecology · 2025Article
- Five-leaf Generalizations of the D-statistic Reveal the Directionality of Admixture.Molecular biology and evolution · 2024Article
- Late Pleistocene polar bear genomes reveal the timing of allele fixation in key genes associated with Arctic adaptation.BMC genomics · 2024Article
- A most aggressive bear: Safari videos document sloth bear defense against tiger predation.Ecology and evolution · 2024Article
- Whole genomes show contrasting trends of population size changes and genomic diversity for an Amazonian endemic passerine over the late quaternary.Ecology and evolution · 2024Article
- Ursids evolved dietary diversity without major alterations in metabolic rates.Scientific reports · 2024Article
- Evidence of population genetic structure in Ecuadorian Andean bears.Scientific reports · 2024Article
- Recent increase in species-wide diversity after interspecies introgression in the highly endangered Iberian lynx.Nature ecology & evolution · 2024Article
- Multiple contact zones and karyotypic evolution in a neotropical frog species complex.Scientific reports · 2024Article
- Worldwide Late Pleistocene and Early Holocene population declines in extant megafauna are associated with Homo sapiens expansion rather than climate change.Nature communications · 2023Article
18 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bears are iconic mammals with a complex evolutionary history. Natural bear hybrids and studies of few nuclear genes indicate that gene flow among bears may be more common than expected and not limited to polar and brown bears. Here we present a genome analysis of the bear family with representatives of all living species. Phylogenomic analyses of 869 mega base pairs divided into 18,621 genome fragments yielded a well-resolved coalescent species tree despite signals for extensive gene flow across species. However, genome analyses using different statistical methods show that gene flow is not limited to closely related species pairs. Strong ancestral gene flow between the Asiatic black bear and the ancestor to polar, brown and American black bear explains uncertainties in reconstructing the bear phylogeny. Gene flow across the bear clade may be mediated by intermediate species such as the geographically wide-spread brown bears leading to large amounts of phylogenetic conflict. Genome-scale analyses lead to a more complete understanding of complex evolutionary processes. Evidence for extensive inter-specific gene flow, found also in other animal species, necessitates shifting the attention from speciation processes achieving genome-wide reproductive isolation to the selective processes that maintain species divergence in the face of gene flow.
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