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Genomic divergence ...
Genomic divergence and a lack of recent introgression between commercial and wild bumblebees (Bombus terrestris)
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- Kardum Hjort, Cecilia (author)
- Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Biodiversitet och bevarandevetenskap,Forskargrupper vid Lunds universitet,Biodiversity,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC),Biodiversity and Conservation Science,Lund University Research Groups,Macquarie University, Sydney
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- Paris, Josephine R. (author)
- University of Exeter
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- Olsson, Peter (author)
- Lund University,Lunds universitet,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Centre for Environmental and Climate Science (CEC),Faculty of Science
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- Herbertsson, Lina (author)
- Lund University,Lunds universitet,Funktionell zoologi,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Functional zoology,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC)
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- Rodrigues De Miranda, Joachim (author)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Institutionen för ekologi,Department of Ecology
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- Dudaniec, Rachael Y. (author)
- Macquarie University, Sydney
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- Smith, Henrik G. (author)
- Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science
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(creator_code:org_t)
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- 2022-03-14
- 2022
- English 18 s.
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In: Evolutionary Applications. - : Wiley. - 1752-4571. ; 15:3, s. 365-382
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Abstract
Subject headings
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- The global movement of bees for agricultural pollination services can affect local pollinator populations via hybridization. When commercial bumblebees are of the same species but of different geographic origin, intraspecific hybridization may result in beneficial integration of new genetic variation, or alternatively may disrupt locally adapted gene complexes. However, neither the existence nor the extent of genomic introgression and evolutionary divergence between wild and commercial bumblebees is fully understood. We obtained whole-genome sequencing data from wild and commercial Bombus terrestris collected from sites in Southern Sweden with and without long-term use of commercially imported B. terrestris. We search for evidence of introgression, dispersal and genome-wide differentiation in a comparative genomic analysis of wild and commercial bumblebees. Commercial B. terrestris were found in natural environments near sites where commercial bumblebees were used, as well as drifting wild B. terrestris in commercial bumblebee colonies. However, we found no evidence for widespread, recent genomic introgression of commercial B. terrestris into local wild conspecific populations. We found that wild B. terrestris had significantly higher nucleotide diversity (Nei's pi, π), while the number of segregating sites (Watterson's theta, θw) was higher in commercial B. terrestris. A highly divergent region on chromosome 11 was identified in commercial B. terrestris and found to be enriched with structural variants. The genes present in this region are involved in flight muscle contraction and structure and pathogen immune response, providing evidence for differing evolutionary processes operating in wild and commercial B. terrestris. We did not find evidence for recent introgression, suggesting that co-occurring commercial B. terrestris have not disrupted evolutionary processes in wild B. terrestris populations.
Subject headings
- NATURVETENSKAP -- Biologi -- Biokemi och molekylärbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biochemistry and Molecular Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
Keyword
- Bombus terrestris
- bumblebees
- introgression
- pollination
- selection
- single nucleotide polymorphisms
- structural variants
- whole-genome sequencing
Publication and Content Type
- art (subject category)
- ref (subject category)
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