Hybrid effects in field populations of the African monarch butterfly, Danaus chrysippus (L.) (Lepidoptera: Nymphalidae)

David A S Smith, Jon J Bennie, Ian J Gordon, Simon Martin, Piera Ireri, Kennedy S Omufwoko, Richard H Ffrench-constant

Research output: Contribution to journalArticlepeer-review

Abstract

Heterosis, Haldane and Bateson-Dobzhansky-Muller effects have been widely documented amongst a range of plants and animals. However, typically these effects are shown by taking parents of known genotype into the laboratory and measuring components of the F1 progeny under laboratory conditions. This leaves in doubt the real significance of such effects in the field. Here we use the well-known colour pattern genotypes of the African monarch or queen (Danaus chrysippus), which also control wing length, to test these effects both in the laboratory and in a contact zone in the field. By measuring the wing lengths in animals of known colour pattern genotype we show clear evidence for all three hybrid effects at the A and BC colour patterning loci, and importantly, that these same effects persist in the same presumptive F1s when measured in hybrid populations in the field. This demonstrates the power of a system in which genotypes can be directly inferred in the field and highlights that all three hybrid effects can be seen in the East African contact zone of this fascinating butterfly.
Original languageEnglish
Pages (from-to)671-684
Number of pages13
JournalBiological journal of the linnean society
Volume133
Issue number3
DOIs
Publication statusPublished - 28 Jun 2021

Keywords

  • aymmetric crossing
  • Bateson-Dobzhansky-Muller effect
  • body size
  • climate change
  • Haldne rule effect
  • heterosis
  • migration
  • non random mating
  • reticulate evolution
  • speciation
  • wing length

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