INVESTIGADORES
SAMBUCETTI Pablo Daniel
artículos
Título:
Quantitative trait locus for starvation resistance in an intercontinental set of mapping populations of Drosophila melanogaster
Autor/es:
F.H. GOMEZ; DEFAYS R; SAMBUCETTI PD,; A.C. SCANNAPIECO; VOLKER LOESCHCKE; F.M. NORRY
Revista:
Fly
Editorial:
LANDES BIOSCIENCE
Referencias:
Lugar: USA; Año: 2009 vol. 3 p. 247 - 252
ISSN:
1933-6934
Resumen:
Starvation resistance (SR) is an important trait for survival of insects in thewild. We used recombinant inbred lines (RIL) to search for quantitative trait loci(QTL) in crosses between intercontinental inbred lines that were originally selectedfor heat-knockdown resistance. SR was measured as the time of survival underrepeated events of starvation. SR was consistently higher in females than in males.Composite interval mapping identified one QTL region (cytological range 64D-66E2) onthe left arm of chromosome 3 in males, and no QTL was found in females. Manycandidate genes that were identified in previous studies of QTL for stressresistance are included within this QTL region. The QTL-allele that decreased SR wasfound in the line originating from the colder population (Denmark). We discuss ourresults with regard to multiple candidate genes, non-colocalization withthermotolerance QTL, and possible geographical variation.
