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A test of the chromosomal rearrangement model of speciation in Drosophila pseudoobscura.

Publication ,  Journal Article
Brown, KM; Burk, LM; Henagan, LM; Noor, MAF
Published in: Evolution; international journal of organic evolution
August 2004

Recent studies suggest that chromosomal rearrangements play a significant role in speciation by preventing recombination and maintaining species persistence despite interspecies gene flow. Factors conferring adaptation or reproductive isolation are maintained in rearranged regions in the face of hybridization, while such factors are eliminated from collinear regions. As a direct test of this rearrangement model, we evaluated the genetic basis of hybrid male sterility in a sympatric species pair, Drosophila pseudoobscura pseudoobscura and D. persimilis, and an allopatric species pair, D. pseudoobscura bogotana and D. persimilis. Our results are consistent with the proposed model: virtually all of the sterility factors in the former pair are associated with three inverted regions, whereas sterility factors are present in the collinear regions in the latter pair. These findings indicate recombination and selection may have eliminated sterility factors outside the inverted regions between D. p. pseudoobscura and D. persimilis, suggesting chromosomal rearrangements may facilitate species persistence despite hybridization.

Duke Scholars

Published In

Evolution; international journal of organic evolution

DOI

EISSN

1558-5646

ISSN

0014-3820

Publication Date

August 2004

Volume

58

Issue

8

Start / End Page

1856 / 1860

Related Subject Headings

  • Species Specificity
  • Selection, Genetic
  • Reproduction
  • Models, Genetic
  • Genotype
  • Evolutionary Biology
  • Drosophila
  • Crosses, Genetic
  • Chromosome Aberrations
  • California
 

Citation

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ICMJE
MLA
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Brown, K. M., Burk, L. M., Henagan, L. M., & Noor, M. A. F. (2004). A test of the chromosomal rearrangement model of speciation in Drosophila pseudoobscura. Evolution; International Journal of Organic Evolution, 58(8), 1856–1860. https://doi.org/10.1111/j.0014-3820.2004.tb00469.x
Brown, Kirsten M., Lisa M. Burk, Loren M. Henagan, and Mohamed A. F. Noor. “A test of the chromosomal rearrangement model of speciation in Drosophila pseudoobscura.Evolution; International Journal of Organic Evolution 58, no. 8 (August 2004): 1856–60. https://doi.org/10.1111/j.0014-3820.2004.tb00469.x.
Brown KM, Burk LM, Henagan LM, Noor MAF. A test of the chromosomal rearrangement model of speciation in Drosophila pseudoobscura. Evolution; international journal of organic evolution. 2004 Aug;58(8):1856–60.
Brown, Kirsten M., et al. “A test of the chromosomal rearrangement model of speciation in Drosophila pseudoobscura.Evolution; International Journal of Organic Evolution, vol. 58, no. 8, Aug. 2004, pp. 1856–60. Epmc, doi:10.1111/j.0014-3820.2004.tb00469.x.
Brown KM, Burk LM, Henagan LM, Noor MAF. A test of the chromosomal rearrangement model of speciation in Drosophila pseudoobscura. Evolution; international journal of organic evolution. 2004 Aug;58(8):1856–1860.
Journal cover image

Published In

Evolution; international journal of organic evolution

DOI

EISSN

1558-5646

ISSN

0014-3820

Publication Date

August 2004

Volume

58

Issue

8

Start / End Page

1856 / 1860

Related Subject Headings

  • Species Specificity
  • Selection, Genetic
  • Reproduction
  • Models, Genetic
  • Genotype
  • Evolutionary Biology
  • Drosophila
  • Crosses, Genetic
  • Chromosome Aberrations
  • California