Third chromosome candidate genes for conspecific sperm precedence between D. simulans and D. mauritiana.

ABSTRACT:

Background

Male - female incompatibilities can be critical in keeping species as separate and discrete units. Premating incompatibilities and postzygotic hybrid sterility/inviability have been widely studied as isolating barriers between species. In recent years, a number of studies have brought attention to postmating prezygotic barriers arising from male - male competition and male - female interactions. Yet little is known about the genetic basis of postmating prezygotic isolation barriers between species.

Results

Using D. simulans lines with mapped introgressions of D. mauritiana into their third chromosome, we find at least two D. mauritiana introgressions causing male breakdown in competitive paternity success. Eighty one genes within the mapped introgressed regions we

SUBMITTER: Levesque L 

PROVIDER: S-EPMC2864193 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature