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Nat Commun. 2017 Nov 16;8(1):1550. doi: 10.1038/s41467-017-01800-0.

A soft selective sweep during rapid evolution of gentle behaviour in an Africanized honeybee.

Author information

1
Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
2
State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223, Kunming, China.
3
China National Genebank, BGI-Shenzhen, 518083, Shenzhen, Guangdong, China.
4
Centre for Social Evolution, Department of Biology, Universitetsparken 15, University of Copenhagen, DK-2100, Copenhagen, Denmark.
5
Departamento de Biología, Universidad de Puerto Rico, Río Piedras, PR, 00931, USA.
6
High-Performance Computing for Biology (HPCBio), Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
7
Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
8
Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. generobi@illinois.edu.
9
Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. generobi@illinois.edu.
10
Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. generobi@illinois.edu.
11
Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. mhudson@illinois.edu.
12
High-Performance Computing for Biology (HPCBio), Carver Biotechnology Center, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. mhudson@illinois.edu.
13
Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. mhudson@illinois.edu.
14
State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, 650223, Kunming, China. zhanggj@genomics.cn.
15
China National Genebank, BGI-Shenzhen, 518083, Shenzhen, Guangdong, China. zhanggj@genomics.cn.
16
Centre for Social Evolution, Department of Biology, Universitetsparken 15, University of Copenhagen, DK-2100, Copenhagen, Denmark. zhanggj@genomics.cn.

Abstract

Highly aggressive Africanized honeybees (AHB) invaded Puerto Rico (PR) in 1994, displacing gentle European honeybees (EHB) in many locations. Gentle AHB (gAHB), unknown anywhere else in the world, subsequently evolved on the island within a few generations. Here we sequence whole genomes from gAHB and EHB populations, as well as a North American AHB population, a likely source of the founder AHB on PR. We show that gAHB retains high levels of genetic diversity after evolution of gentle behaviour, despite selection on standing variation. We observe multiple genomic loci with significant signatures of selection. Rapid evolution during colonization of novel habitats can generate major changes to characteristics such as morphological or colouration traits, usually controlled by one or more major genetic loci. Here we describe a soft selective sweep, acting at multiple loci across the genome, that occurred during, and may have mediated, the rapid evolution of a behavioural trait.

PMID:
29142254
PMCID:
PMC5688081
DOI:
10.1038/s41467-017-01800-0
[Indexed for MEDLINE]
Free PMC Article

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