Journal article
The genetic basis of prezygotic reproductive isolation between Drosophila santomea and D. yakuba due to mating preference
Genetics (Austin), Vol.173(1), pp.215-223
05/2006
DOI: 10.1534/genetics.105.052993
PMCID: PMC1461457
PMID: 16510787
Abstract
Sexual isolating mechanisms that act before fertilization are often considered the most important genetic barriers leading to speciation in animals. While progress has been made toward understanding the genetic basis of the postzygotic isolating mechanisms of hybrid sterility and inviability, little is known about the genetic basis of prezygotic sexual isolation. Here, we map quantitative trait loci (QTL) contributing to prezygotic reproductive isolation between the sibling species Drosophila santomea and D. yakuba. We mapped at least three QTL affecting discrimination of D. santomea females against D. yakuba males: one X-linked and one autosomal QTL affected the likelihood of copulation, and a second X chromosome QTL affected copulation latency. Three autosomal QTL also affected mating success of D. yakuba males with D. santomea. No epistasis was detected between QTL affecting sexual isolation. The QTL do not overlap between males and females and are not disproportionately concentrated on the X chromosome. There was some overlap in map locations of QTL affecting sexual isolation between D. santomea and D. yakuba with QTL affecting sexual isolation between D. simulans and D. mauritiana and with QTL affecting differences in pigmentation between D. santomea and D. yakuba. Future high-resolution mapping and, ultimately, positional cloning, will reveal whether these traits do indeed have a common genetic basis.
Details
- Title: Subtitle
- The genetic basis of prezygotic reproductive isolation between Drosophila santomea and D. yakuba due to mating preference
- Creators
- Amanda J Moehring - Department of Genetics, North Carolina State University, Raleigh 27695, USA. ajmoehring@gmail.comAna LlopartSusannah ElwynJerry A CoyneTrudy F C Mackay
- Resource Type
- Journal article
- Publication Details
- Genetics (Austin), Vol.173(1), pp.215-223
- Publisher
- United States
- DOI
- 10.1534/genetics.105.052993
- PMID
- 16510787
- PMCID
- PMC1461457
- ISSN
- 0016-6731
- eISSN
- 1943-2631
- Grant note
- P01 GM045344 / NIGMS NIH HHS GM45344 / NIGMS NIH HHS GM 58260 / NIGMS NIH HHS R01 GM058260 / NIGMS NIH HHS
- Language
- English
- Date published
- 05/2006
- Academic Unit
- Biology
- Record Identifier
- 9983991954802771
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