Assessing the putative roles of X-autosome and X-Y interactions in hybrid male sterility of the Drosophila bipectinata species complex

Paras Kumar Mishra, Bashisth Narayan Singh

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Interspecific F1 hybrid males of the Drosophila bipectinata species complex are sterile, while females are fertile, following Haldane's rule. A backcross scheme involving a single recessive visible marker on the X chromosome has been used to assess the putative roles of X-autosome and X-Y interactions in hybrid male sterility in the D. bipectinata species complex. The results suggest that X-Y interactions are playing the major role in hybrid male sterility in the crosses D. bipectinata x D. parabipectinata and D. bipectinata x D. pseudoananassae, while X-autosome interactions are largely involved in hybrid male sterility in the crosses D. malerkotliana x D. bipectinata and D. malerkotliana x D. parabipectinata. However, by using this single marker it is not possible to rule out the involvement of autosome-autosome interactions in hybrid male sterility. These findings also lend further support to the phylogenetic relationships among 4 species of the D. bipectinata complex.

Original languageEnglish (US)
Pages (from-to)653-659
Number of pages7
JournalGenome
Volume50
Issue number7
DOIs
StatePublished - Jul 2007

Keywords

  • Chromosome interactions
  • D. bipectinata species complex
  • Hybrid male sterility

ASJC Scopus subject areas

  • Biotechnology
  • Molecular Biology
  • Genetics

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