Genetics of postzygotic isolation and Haldane's rule in haplodiploids

T. Koevoets, L. W. Beukeboom*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

41 Citations (Scopus)
61 Downloads (Pure)

Abstract

The process of speciation has puzzled scientists for decades, but only recently they have they been able to reveal the genetic basis of reproductive isolation. Much emphasis has been on Haldane's rule, the observation that the heterogametic sex often suffers more from hybridization than the homogametic sex. Most research on Haldane's rule has focused on diploid organisms with chromosomal sex determination. We argue that species lacking chromosomal sex determination, such as haplodiploids, also follow Haldane's rule and thus should be included in the definition of this rule. We provide evidence for Haldane's rule in Nasonia wasps and describe how haplodiploids can be used to test the different theories that have been proposed to explain Haldane's rule. We discuss how the faster-male and faster-X theories can shape speciation differently in haplodiploids compared to diploids.

Original languageEnglish
Pages (from-to)16-23
Number of pages8
JournalHeredity
Volume102
Issue number1
DOIs
Publication statusPublished - Jan-2009

Keywords

  • postzygotic isolation
  • Haldane's rule
  • Dobzhansky-Muller interactions
  • haplodiploidy
  • Nasonia
  • INDUCED CYTOPLASMIC INCOMPATIBILITY
  • POSTMATING REPRODUCTIVE ISOLATION
  • HYBRID INCOMPATIBILITIES
  • DROSOPHILA-SIMULANS
  • NASONIA HYMENOPTERA
  • TETRANYCHUS-URTICAE
  • DOMINANCE THEORY
  • MATING-BEHAVIOR
  • SEX-RATIO
  • SPECIATION

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