Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster
Molecular genetic markers can be used to identify quantitative trait loci (QTL) for thermal resistance and this has allowed characterization of a major QTL for knockdown resistance to high temperature in Drosophila melanogaster. The QTL showed trade-off associations with cold resistance under labora...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v57_n9_p1227_Loeschcke http://hdl.handle.net/20.500.12110/paper_00221910_v57_n9_p1227_Loeschcke |
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paper:paper_00221910_v57_n9_p1227_Loeschcke2023-06-08T14:47:14Z Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster Norry, Fabian Marcelo Copulatory success Fitness in the wild Genetic variation Heat and cold resistance Semi-natural conditions Stress resistance bioassay copulation fitness fly genetic marker genetic variation genotype laboratory method life history trait quantitative analysis temperature tolerance trade-off animal article copulation Drosophila melanogaster female genetics genotype heat male quantitative trait locus Animals Copulation Drosophila melanogaster Female Genotype Hot Temperature Male Quantitative Trait Loci Drosophila melanogaster Molecular genetic markers can be used to identify quantitative trait loci (QTL) for thermal resistance and this has allowed characterization of a major QTL for knockdown resistance to high temperature in Drosophila melanogaster. The QTL showed trade-off associations with cold resistance under laboratory conditions. However, assays of thermal tolerance conducted in the laboratory may not necessarily reflect performance at varying temperatures in the field. Here we tested if lines with different genotypes in this QTL show different thermal performance under high and low temperatures in the field using a release recapture assay. We found that lines carrying the QTL genotype for high thermal tolerance were significantly better at locating resources in the field releases under hot temperatures while the QTL line carrying the contrasting genotype were superior at cold temperatures. Further, we studied copulatory success between the different QTL genotypes at different temperatures. We found higher copulatory success in males of the high tolerance QTL genotype under hot temperature conditions, while there was no difference in females at cold temperatures. The results allow relating components of field fitness at different environmental temperatures with genotypic variation in a QTL for thermal tolerance. © 2011 Elsevier Ltd. Fil:Norry, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v57_n9_p1227_Loeschcke http://hdl.handle.net/20.500.12110/paper_00221910_v57_n9_p1227_Loeschcke |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Copulatory success Fitness in the wild Genetic variation Heat and cold resistance Semi-natural conditions Stress resistance bioassay copulation fitness fly genetic marker genetic variation genotype laboratory method life history trait quantitative analysis temperature tolerance trade-off animal article copulation Drosophila melanogaster female genetics genotype heat male quantitative trait locus Animals Copulation Drosophila melanogaster Female Genotype Hot Temperature Male Quantitative Trait Loci Drosophila melanogaster |
| spellingShingle |
Copulatory success Fitness in the wild Genetic variation Heat and cold resistance Semi-natural conditions Stress resistance bioassay copulation fitness fly genetic marker genetic variation genotype laboratory method life history trait quantitative analysis temperature tolerance trade-off animal article copulation Drosophila melanogaster female genetics genotype heat male quantitative trait locus Animals Copulation Drosophila melanogaster Female Genotype Hot Temperature Male Quantitative Trait Loci Drosophila melanogaster Norry, Fabian Marcelo Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster |
| topic_facet |
Copulatory success Fitness in the wild Genetic variation Heat and cold resistance Semi-natural conditions Stress resistance bioassay copulation fitness fly genetic marker genetic variation genotype laboratory method life history trait quantitative analysis temperature tolerance trade-off animal article copulation Drosophila melanogaster female genetics genotype heat male quantitative trait locus Animals Copulation Drosophila melanogaster Female Genotype Hot Temperature Male Quantitative Trait Loci Drosophila melanogaster |
| description |
Molecular genetic markers can be used to identify quantitative trait loci (QTL) for thermal resistance and this has allowed characterization of a major QTL for knockdown resistance to high temperature in Drosophila melanogaster. The QTL showed trade-off associations with cold resistance under laboratory conditions. However, assays of thermal tolerance conducted in the laboratory may not necessarily reflect performance at varying temperatures in the field. Here we tested if lines with different genotypes in this QTL show different thermal performance under high and low temperatures in the field using a release recapture assay. We found that lines carrying the QTL genotype for high thermal tolerance were significantly better at locating resources in the field releases under hot temperatures while the QTL line carrying the contrasting genotype were superior at cold temperatures. Further, we studied copulatory success between the different QTL genotypes at different temperatures. We found higher copulatory success in males of the high tolerance QTL genotype under hot temperature conditions, while there was no difference in females at cold temperatures. The results allow relating components of field fitness at different environmental temperatures with genotypic variation in a QTL for thermal tolerance. © 2011 Elsevier Ltd. |
| author |
Norry, Fabian Marcelo |
| author_facet |
Norry, Fabian Marcelo |
| author_sort |
Norry, Fabian Marcelo |
| title |
Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster |
| title_short |
Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster |
| title_full |
Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster |
| title_fullStr |
Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster |
| title_full_unstemmed |
Consistent effects of a major QTL for thermal resistance in field-released Drosophila melanogaster |
| title_sort |
consistent effects of a major qtl for thermal resistance in field-released drosophila melanogaster |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v57_n9_p1227_Loeschcke http://hdl.handle.net/20.500.12110/paper_00221910_v57_n9_p1227_Loeschcke |
| work_keys_str_mv |
AT norryfabianmarcelo consistenteffectsofamajorqtlforthermalresistanceinfieldreleaseddrosophilamelanogaster |
| _version_ |
1768546707784597504 |