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Abstract:

Starvation resistance (SR) is an important trait for survival of insects in the wild. We used recombinant inbred lines (RIL) to search for quantitative trait loci (QTL) in crosses between intercontinental inbred lines that were originally selected for heat-knockdown resistance. SR was measured as the time of survival under repeated events of starvation. SR was consistently higher in females than in males. Composite interval mapping identified one QTL region (cytological range 64D-66E2) on the left arm of chromosome 3 in males, and no QTL was found in females. Many candidate genes that were identified in previous studies of QTL for stress resistance are included within this QTL region. The QTL-allele that decreased SR was found in the line originating from the colder population (Denmark). We discuss our results with regard to multiple candidate genes, noncolocalization with thermotolerance QTL, and possible geographical variation. © 2009 Landes Bioscience.

Registro:

Documento: Artículo
Título:Quantitative trait locus for starvation resistance in an intercontinental set of mapping populations of Drosophila melanogaster
Autor:Gómez, F.H.; Defays, R.; Sambucetti, P.; Scannapieco, A.C.; Loeschcke, V.; Norry, F.M.
Filiación:Departamento de Ecología; Genética, Evolución; Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Department of Biological Sciences, Ecology and Genetics, Aarhus University, Aarhus C, Denmark
Palabras clave:Environmental stress; Life span; Nutritional stress; QTL; Thermotolerance; Drosophila melanogaster; Hexapoda
Año:2009
Volumen:3
Número:4
DOI: http://dx.doi.org/10.4161/fly.10384
Título revista:Fly
Título revista abreviado:Fly
ISSN:19336934
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19336934_v3_n4_p_Gomez

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Citas:

---------- APA ----------
Gómez, F.H., Defays, R., Sambucetti, P., Scannapieco, A.C., Loeschcke, V. & Norry, F.M. (2009) . Quantitative trait locus for starvation resistance in an intercontinental set of mapping populations of Drosophila melanogaster. Fly, 3(4).
http://dx.doi.org/10.4161/fly.10384
---------- CHICAGO ----------
Gómez, F.H., Defays, R., Sambucetti, P., Scannapieco, A.C., Loeschcke, V., Norry, F.M. "Quantitative trait locus for starvation resistance in an intercontinental set of mapping populations of Drosophila melanogaster" . Fly 3, no. 4 (2009).
http://dx.doi.org/10.4161/fly.10384
---------- MLA ----------
Gómez, F.H., Defays, R., Sambucetti, P., Scannapieco, A.C., Loeschcke, V., Norry, F.M. "Quantitative trait locus for starvation resistance in an intercontinental set of mapping populations of Drosophila melanogaster" . Fly, vol. 3, no. 4, 2009.
http://dx.doi.org/10.4161/fly.10384
---------- VANCOUVER ----------
Gómez, F.H., Defays, R., Sambucetti, P., Scannapieco, A.C., Loeschcke, V., Norry, F.M. Quantitative trait locus for starvation resistance in an intercontinental set of mapping populations of Drosophila melanogaster. Fly. 2009;3(4).
http://dx.doi.org/10.4161/fly.10384