Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster
The possible genetic correlation between longevity and knockdown resistance to high temperature (KRHT) was tested in reciprocal backcrosses between nearly-homozygous lines of D. melanogaster. These baselines differ dramatically for KRHT. Because nearly-homozygous lines were used, reciprocal backcros...
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2009
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18746098_v2_n2_p103_Defays http://hdl.handle.net/20.500.12110/paper_18746098_v2_n2_p103_Defays |
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paper:paper_18746098_v2_n2_p103_Defays2023-06-08T16:30:07Z Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster Defays, Raquel Norry, Fabian Marcelo Dominance Heat knockdown resistance Heat sensitivity Senescence article correlation analysis Drosophila melanogaster genetic correlation genetic trait genetic variability heat sensitivity heat stress heat tolerance homozygosity nonhuman priority journal senescence adaptation animal cross breeding dominant gene female genetics heat shock response homozygote inheritance longevity male phenotype population density time Adaptation, Physiological Animals Crosses, Genetic Drosophila melanogaster Female Genes, Dominant Heat-Shock Response Homozygote Inheritance Patterns Longevity Male Phenotype Population Density Time Factors The possible genetic correlation between longevity and knockdown resistance to high temperature (KRHT) was tested in reciprocal backcrosses between nearly-homozygous lines of D. melanogaster. These baselines differ dramatically for KRHT. Because nearly-homozygous lines were used, reciprocal backcrosses were informative to test for dominant versus additive genetic associations between the traits. The line of high KRHT was longer lived than the low KRHT line. The correlation between longevity and KRHT was dependent on the backcross (BC). When a BC was set up with males from the low KRHT line, the most KRHT resistant individuals were in turn the longest-lived flies. However, this was not found in the reciprocal backcross, indicating dominance. Alleles that confer increased KRHT are dominant in the correlation between longevity and KRHT. The between-line variation in the traits studied is consistent with the hypothesis that stress-resistant genotypes correspond to long-lived individuals. © 2009 Bentham Science Publishers Ltd. Fil:Defays, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Norry, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18746098_v2_n2_p103_Defays http://hdl.handle.net/20.500.12110/paper_18746098_v2_n2_p103_Defays |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Dominance Heat knockdown resistance Heat sensitivity Senescence article correlation analysis Drosophila melanogaster genetic correlation genetic trait genetic variability heat sensitivity heat stress heat tolerance homozygosity nonhuman priority journal senescence adaptation animal cross breeding dominant gene female genetics heat shock response homozygote inheritance longevity male phenotype population density time Adaptation, Physiological Animals Crosses, Genetic Drosophila melanogaster Female Genes, Dominant Heat-Shock Response Homozygote Inheritance Patterns Longevity Male Phenotype Population Density Time Factors |
| spellingShingle |
Dominance Heat knockdown resistance Heat sensitivity Senescence article correlation analysis Drosophila melanogaster genetic correlation genetic trait genetic variability heat sensitivity heat stress heat tolerance homozygosity nonhuman priority journal senescence adaptation animal cross breeding dominant gene female genetics heat shock response homozygote inheritance longevity male phenotype population density time Adaptation, Physiological Animals Crosses, Genetic Drosophila melanogaster Female Genes, Dominant Heat-Shock Response Homozygote Inheritance Patterns Longevity Male Phenotype Population Density Time Factors Defays, Raquel Norry, Fabian Marcelo Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| topic_facet |
Dominance Heat knockdown resistance Heat sensitivity Senescence article correlation analysis Drosophila melanogaster genetic correlation genetic trait genetic variability heat sensitivity heat stress heat tolerance homozygosity nonhuman priority journal senescence adaptation animal cross breeding dominant gene female genetics heat shock response homozygote inheritance longevity male phenotype population density time Adaptation, Physiological Animals Crosses, Genetic Drosophila melanogaster Female Genes, Dominant Heat-Shock Response Homozygote Inheritance Patterns Longevity Male Phenotype Population Density Time Factors |
| description |
The possible genetic correlation between longevity and knockdown resistance to high temperature (KRHT) was tested in reciprocal backcrosses between nearly-homozygous lines of D. melanogaster. These baselines differ dramatically for KRHT. Because nearly-homozygous lines were used, reciprocal backcrosses were informative to test for dominant versus additive genetic associations between the traits. The line of high KRHT was longer lived than the low KRHT line. The correlation between longevity and KRHT was dependent on the backcross (BC). When a BC was set up with males from the low KRHT line, the most KRHT resistant individuals were in turn the longest-lived flies. However, this was not found in the reciprocal backcross, indicating dominance. Alleles that confer increased KRHT are dominant in the correlation between longevity and KRHT. The between-line variation in the traits studied is consistent with the hypothesis that stress-resistant genotypes correspond to long-lived individuals. © 2009 Bentham Science Publishers Ltd. |
| author |
Defays, Raquel Norry, Fabian Marcelo |
| author_facet |
Defays, Raquel Norry, Fabian Marcelo |
| author_sort |
Defays, Raquel |
| title |
Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| title_short |
Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| title_full |
Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| title_fullStr |
Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| title_full_unstemmed |
Dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| title_sort |
dominance variation in the correlation between longevity and heatstress resistance in drosophila melanogaster |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18746098_v2_n2_p103_Defays http://hdl.handle.net/20.500.12110/paper_18746098_v2_n2_p103_Defays |
| work_keys_str_mv |
AT defaysraquel dominancevariationinthecorrelationbetweenlongevityandheatstressresistanceindrosophilamelanogaster AT norryfabianmarcelo dominancevariationinthecorrelationbetweenlongevityandheatstressresistanceindrosophilamelanogaster |
| _version_ |
1768542477167362048 |