Gene flow despite complex Robertsonian fusions among rock-wallaby (Petrogale) species

Sally Potter*, Craig Moritz, Mark D B Eldridge

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Complex Robertsonian rearrangements, with shared arms in different fusions, are expected to prevent gene flow between hybrids through missegregation during meiosis. Here, we estimate gene flow between recently diverged and chromosomally diverse rock-wallabies (Petrogale) to test for this form of chromosomal speciation. Contrary to expectations, we observe relatively high admixture among species with complex fusions. Our results reinforce the need to consider alternative roles of chromosome change, together with genic divergence, in driving speciation.

Original languageEnglish
Article number20150731
Pages (from-to)1-5
Number of pages5
JournalBiology Letters
Issue number10
Publication statusPublished - 1 Oct 2015
Externally publishedYes


  • Chromosome
  • Gene flow
  • Monobrachial homology
  • Speciation


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