ArticleMolecular biology and evolution2021
Genetic Barriers to Historical Gene Flow between Cryptic Species of Alpine Bumblebees Revealed by Comparative Population Genomics.
Article in Molecular biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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19 citing papers in PubMed, 53 citations in OpenAlex.
- Repeated cases of allopatric divergence and secondary contact in cattail (Typha) speciation.Heredity · 2026Article
- Evolution of genome-wide barriers to gene flow during complex speciation in rattlesnakes.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- The Explosive Radiation of the Neotropical Tillandsia Subgenus Tillandsia (Bromeliaceae) Has Been Accompanied by Pervasive Hybridization.Systematic biology · 2026Article
- Article
- Genetic mapping in the red mason bee implicates ANTSR as an ancient sex-determining locus in bees and ants.PLoS biology · 2025Article
- Mitonuclear Coevolution in Bumblebees (Bombus): Genomic Signatures and Its Role in Climatic Niche Adaptation.Genome biology and evolution · 2025Article
- Genomic introgression underlies environmental adaptation in three species of Chinese wingnuts,Plant diversity · 2025Article
- Genetic Differentiation is Constrained to Chromosomal Inversions and Putative Centromeres in Locally Adapted Populations With Higher Gene Flow.Molecular biology and evolution · 2025Article
- A Segregating Structural Variant Defines Novel Venom Phenotypes in the Eastern Diamondback Rattlesnake.Molecular biology and evolution · 2025Article
- Exploring the genetics of social behaviour in C. calcarata.Scientific reports · 2025Article
- Does coevolution in refugia drive mimicry in bumble bees? Insights from a South Asian mimicry group.Science advances · 2024Article
- Cryptic diversity and rampant hybridization in annual gentians on the Qinghai-Tibet Plateau revealed by population genomic analysis.Plant diversity · 2024Article
- Defining honeybee subspecies in an evolutionary context warrants strategized conservation.Zoological research · 2023Article
- Recombination Variation Shapes Phylogeny and Introgression in Wild Diploid Strawberries.Molecular biology and evolution · 2023Article
- Whole genome demographic models indicate divergent effective population size histories shape contemporary genetic diversity gradients in a montane bumble bee.Ecology and evolution · 2023Article
- Sympatric or micro-allopatric speciation in a glacial lake? Genomic islands support neither.National science review · 2022Article
- Utilizing museomics to trace the complex history and species boundaries in an avian-study system of conservation concern.Heredity · 2022Article
- Phylogenetic Analysis of Small Hive Beetles From Native to Introduced Populations.Frontiers in genetics · 2022Article
- Genomic, Habitat, and Leaf Shape Analyses Reveal a Possible Cryptic Species and Vulnerability to Climate Change in a Threatened Daisy.Life (Basel, Switzerland) · 2021Article
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Authors and funding
13 authors at 6 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Evidence is accumulating that gene flow commonly occurs between recently diverged species, despite the existence of barriers to gene flow in their genomes. However, we still know little about what regions of the genome become barriers to gene flow and how such barriers form. Here, we compare genetic differentiation across the genomes of bumblebee species living in sympatry and allopatry to reveal the potential impact of gene flow during species divergence and uncover genetic barrier loci. We first compared the genomes of the alpine bumblebee Bombus sylvicola and a previously unidentified sister species living in sympatry in the Rocky Mountains, revealing prominent islands of elevated genetic divergence in the genome that colocalize with centromeres and regions of low recombination. This same pattern is observed between the genomes of another pair of closely related species living in allopatry (B. bifarius and B. vancouverensis). Strikingly however, the genomic islands exhibit significantly elevated absolute divergence (dXY) in the sympatric, but not the allopatric, comparison indicating that they contain loci that have acted as barriers to historical gene flow in sympatry. Our results suggest that intrinsic barriers to gene flow between species may often accumulate in regions of low recombination and near centromeres through processes such as genetic hitchhiking, and that divergence in these regions is accentuated in the presence of gene flow.
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