Distant but related: genetic structure in the circum-boreal bumblebee Bombus jonellus (Kirby, 1802)

Martinet, Baptiste; Ghisbain, Guillaume; Przybyla, Kimberly; Zambra, Ella; Brasero, Nicolas; Kondakov, Alexander V.; Tomilova, Alena A.; Kolosova, Yu. S.; Bolotov, Ivan N.; Rasmont, Pierre; Potapov, Grigory S.

doi:10.1007/s00300-021-02937-x

Cited by 2 publications

(2 citation statements)

References 39 publications

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“…Despite these increased genetic vulnerabilities, studies of bumblebee population structure and genetic diversity have largely been performed using limited numbers of molecular markers (24,25,(27)(28)(29)(30)(31)(32)(33)(34)(35). The results of these studies vary between species, with both declining and common species exhibiting either significant (25,27,29,35) or minimal (29,33) genetic structure across a range of spatial scales.…”

Section: Introductionmentioning

confidence: 99%

Distinct genome architecture underlies fine-scale population differentiation in two common European bumblebees (Bombus pascuorumandBombus lapidarius)

Cobb,

Sydenham,

Nielsen

et al. 2024

Preprint

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Bumblebees are keystone pollinators which facilitate the reproduction of a wide range of wild and agricultural plants. Their abundance and diversity have been severely reduced by anthropogenic stressors such as land-use change and widespread habitat fragmentation. However, we lack a comprehensive understanding of bumblebee population structure and local adaptation in response to human-altered landscapes. We here discover surprisingly fine-scaled population structure (e.g. ~300km) within two widely occurring bumblebee species, Bombus lapidarius and Bombus pascuorum, by analysing whole genome data of 106 specimens from 7 sites in Northern Europe. Our sample range encompasses a mosaic of land-use types with varying levels of habitat fragmentation and natural oceanic barriers. While the observed population structure is largely associated with reduced gene flow across natural barriers, we also detect significant divergence between populations sampled from more fragmented, agricultural landscapes. Furthermore, we identify species-specific patterns of population structure which are underpinned by distinct genomic architecture. Whereas genetic divergence in B. lapidarius is spread relatively evenly across the genome, divergence in B. pascuorum is concentrated within several megabase-sized genomic regions with significantly elevated differentiation, including a putative chromosomal inversion, which may underlie well-known colour polymorphisms across its range. Our observations reveal unexpectedly high levels of inter- and intraspecific genomic diversity within the bumblebee genus, and highlight the necessity of increasing our understanding of bumblebee population structure and connectivity to design optimal bumblebee conservation strategies.

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Section: Introductionmentioning

confidence: 99%

Distinct genome architecture underlies fine-scale population differentiation in two common European bumblebees (Bombus pascuorumandBombus lapidarius)

Cobb,

Sydenham,

Nielsen

et al. 2024

Preprint

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“…Bumblebees are some of the most intensively studied and well-known insects globally and yet new species continue to be discovered (patterns reviewed by Williams 1998;2022b). Some of the most widespread bumblebee species within Europe and Asia have in the last decade been examined for genetic variation across their ranges (Dellicour et al , 2017Lecocq et al 2016;Martinet et al 2021). Part of the interest for this kind of work comes from the intriguing case of obscure cryptic species that are now well established from multiple lines of evidence to exist among the relatives of Bombus lucorum (Linnaeus, 1761) within Europe, but which remain difficult to distinguish from morphology (reviewed by Rasmont 1984;Williams et al 2012Williams et al , 2021.…”

Section: Introductionmentioning

confidence: 99%

Bumblebees of the hypnorum-complex world-wide including two new near-cryptic species (Hymenoptera: Apidae)

Williams

Dorji²,

Z³

et al. 2022

EJT

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The hypnorum-complex of bumblebees (in the genus Bombus Latreille, 1802) has been interpreted as consisting of a single widespread Old-World species, Bombus hypnorum (Linnaeus, 1758) s. lat., and its closely similar sister species in the New World, B. perplexus Cresson, 1863. We examined barcodes for evidence of species’ gene coalescents within this species complex, using the closely related vagans-group to help calibrate Poisson-tree-process models to a level of branching appropriate for discovering species. The results support seven candidate species within the hypnorum-complex (Bombus taiwanensis Williams, Sung, Lin & Lu, 2022, B. wolongensis Williams, Ren & Xie sp. nov., B. bryorum Richards, 1930, B. hypnorum, B. koropokkrus Sakagami & Ishikawa, 1972, and B. hengduanensis Williams, Ren & Xie sp. nov., plus B. perplexus), which are comparable in status to the currently accepted species of the vagans-group. Morphological corroboration of the coalescent candidate species is subtle but supports the gene coalescents if these candidates are considered near-cryptic species.

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Distant but related: genetic structure in the circum-boreal bumblebee Bombus jonellus (Kirby, 1802)

Cited by 2 publications

References 39 publications

Distinct genome architecture underlies fine-scale population differentiation in two common European bumblebees (Bombus pascuorumandBombus lapidarius)

Distinct genome architecture underlies fine-scale population differentiation in two common European bumblebees (Bombus pascuorumandBombus lapidarius)

Bumblebees of the hypnorum-complex world-wide including two new near-cryptic species (Hymenoptera: Apidae)

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