3 Works

Data from: Hologenomic speciation: synergy between a male-killing bacterium and sex-linkage creates a ‘magic trait’ in a butterfly hybrid zone

Ian J. Gordon, Piera Ireri & David A. S. Smith
Danaus chrysippus (L.) in Africa comprises four substantially isolated semispecies that are migratory and hybridize on a seasonal basis throughout the eastern and central part of the continent. In the hybrid zone (but not elsewhere), the butterfly is commonly host to a male killing endosymbiotic bacterium, Spiroplasma sp., which principally infects one semispecies, Danaus chrysippus chrysippus in Kenya. A W-autosome mutation, inherited strictly matrilinearly, links B and C colour gene loci, which have thus gained...

Data from: Whole-chromosome hitchhiking driven by a male-killing endosymbiont

Simon Martin, Kumar Singh, Ian Gordon, Kennedy Omufwoko, Steve Collins, Ian Warren, Hannah Munby, Oskar Brattström, Walther Traut, Dino Martins, David Smith, Chris Jiggins, Chris Bass & Richard French-Constant
Neo-sex chromosomes are found in many taxa, but the forces driving their emergence and spread are poorly understood. The female-specific neo-W chromosome of the African monarch (or queen) butterfly Danaus chrysippus presents an intriguing case study because it is restricted to a single ‘contact zone’ population, involves a putative colour patterning supergene, and co-occurs with infection by the the male-killing endosymbiont Spiroplasma. We investigated the origin and evolution of this system using whole genome sequencing....

Global biogeography of warning colouration in the butterfly Danaus chrysippus

Wanzhen Liu, David A. S. Smith, Gayatri Raina, Rowan Stanforth, Ivy Ng’Iru, Piera Ireri, Dino J. Martins, Ian J. Gordon & Simon H. Martin
Warning colouration provides a textbook example of natural selection, but the frequent observation of polymorphism in aposematic species presents an evolutionary puzzle. We investigated biogeography and polymorphism of warning patterns in the widespread butterfly Danaus chrysippus using records from citizen science (n=5467), museums (n=8864), and fieldwork (n=2586). We find that polymorphism in three traits controlled by known mendelian loci is extensive. Broad allele frequency clines, hundreds of km wide, suggest a balance between long-range dispersal...

Registration Year

  • 2022
    1
  • 2020
    1
  • 2013
    1

Resource Types

  • Dataset
    3

Affiliations

  • Eton College
    3
  • University of Edinburgh
    2
  • Mpala Research Center and Wildlife Foundation
    2
  • University of Rwanda
    1
  • National Museum
    1
  • Princeton University
    1
  • University of Cambridge
    1
  • Indian Institute of Science Education and Research Mohali
    1
  • BirdLife International
    1
  • International Centre of Insect Physiology and Ecology
    1