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Differences in crossover frequency and distribution among three sibling species of Drosophila.

Publication ,  Journal Article
True, JR; Mercer, JM; Laurie, CC
Published in: Genetics
February 1996

Comparisons of the genetic and cytogenetic maps of three sibling species of Drosophila reveal marked differences in the frequency and cumulative distribution of crossovers during meiosis. The maps for two of these species, Drosophila melanogaster and D. simulans, have previously been described, while this report presents new map data for D. mauritiana, obtained using a set of P element markers. A genetic map covering nearly the entire genome was constructed by estimating the recombination fraction for each pair of adjacent inserts. The P-based genetic map of mauritiana is approximately 1.8 times longer than the standard melanogaster map. It appears that mauritiana has higher recombination along the entire length of each chromosome, but the difference is greates in centromere-proximal regions of the autosomes. The mauritiana autosomes show little or no centromeric recombinational suppression, a characteristic that is prominent in melanogaster. D. simulans appears to be intermediate both in terms of total map length and intensity of the autosomal centromeric effect. These interspecific differences in recombination have important evolutionary implications for DNA sequence organization and variability. In particular, mauritiana is expected to differ from melanogaster in patterns and amounts of sequence variation and transposon insertions.

Duke Scholars

Published In

Genetics

DOI

EISSN

1943-2631

ISSN

0016-6731

Publication Date

February 1996

Volume

142

Issue

2

Start / End Page

507 / 523

Related Subject Headings

  • Recombination, Genetic
  • Male
  • Gene Frequency
  • Female
  • Eye Color
  • Drosophila melanogaster
  • Drosophila
  • Developmental Biology
  • Crossing Over, Genetic
  • Chromosome Mapping
 

Citation

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ICMJE
MLA
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True, J. R., Mercer, J. M., & Laurie, C. C. (1996). Differences in crossover frequency and distribution among three sibling species of Drosophila. Genetics, 142(2), 507–523. https://doi.org/10.1093/genetics/142.2.507
True, J. R., J. M. Mercer, and C. C. Laurie. “Differences in crossover frequency and distribution among three sibling species of Drosophila.Genetics 142, no. 2 (February 1996): 507–23. https://doi.org/10.1093/genetics/142.2.507.
True JR, Mercer JM, Laurie CC. Differences in crossover frequency and distribution among three sibling species of Drosophila. Genetics. 1996 Feb;142(2):507–23.
True, J. R., et al. “Differences in crossover frequency and distribution among three sibling species of Drosophila.Genetics, vol. 142, no. 2, Feb. 1996, pp. 507–23. Epmc, doi:10.1093/genetics/142.2.507.
True JR, Mercer JM, Laurie CC. Differences in crossover frequency and distribution among three sibling species of Drosophila. Genetics. 1996 Feb;142(2):507–523.

Published In

Genetics

DOI

EISSN

1943-2631

ISSN

0016-6731

Publication Date

February 1996

Volume

142

Issue

2

Start / End Page

507 / 523

Related Subject Headings

  • Recombination, Genetic
  • Male
  • Gene Frequency
  • Female
  • Eye Color
  • Drosophila melanogaster
  • Drosophila
  • Developmental Biology
  • Crossing Over, Genetic
  • Chromosome Mapping