Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster

Desiccation, resulting from extremely dry environmental conditions, is a serious obstacle to the survival of organisms. Water is vital for the maintenance of intracellular structure and prevents the irreversible formation of aggregates, an occurrence leading to loss of cellular function. To characte...

Descripción completa

Detalles Bibliográficos
Autores principales: Gomez, Federico Hernan, Sambucetti, Pablo Daniel, Norry, Fabian Marcelo
Publicado: 2015
Materias:
Dehydration stress
Environmental stress
Small insects
Thermal stress
dehydration
desiccation
environmental conditions
environmental stress
fly
genetic structure
genetic variation
humidity
inbreeding
recombination
survival
temperature effect
Drosophila melanogaster
Hexapoda
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v40_n3_p205_Gomez
http://hdl.handle.net/20.500.12110/paper_03076962_v40_n3_p205_Gomez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03076962_v40_n3_p205_Gomez
record_format dspace
spelling paper:paper_03076962_v40_n3_p205_Gomez2023-06-08T15:31:33Z Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster Gomez, Federico Hernan Sambucetti, Pablo Daniel Norry, Fabian Marcelo Dehydration stress Environmental stress Small insects Thermal stress dehydration desiccation environmental conditions environmental stress fly genetic structure genetic variation humidity inbreeding recombination survival temperature effect Drosophila melanogaster Hexapoda Desiccation, resulting from extremely dry environmental conditions, is a serious obstacle to the survival of organisms. Water is vital for the maintenance of intracellular structure and prevents the irreversible formation of aggregates, an occurrence leading to loss of cellular function. To characterize genetic variation in desiccation stress resistance (DSR) in Drosophila melanogaster Meigen, an intercontinental set of recombinant inbred lines (RIL) is used. Flies are exposed to a low humidity environment (<10% relative humidity) at a constant temperature of 25°C. Desiccation stress resistance is higher in RIL derived from a backcross to the parental stock sensitive to heat stress (from Denmark) than in RIL derived from the reciprocal backcross to the heat-stress resistant stock (from Australia). Composite interval mapping reveals significant quantitative trail loci (QTL) for DSR in the set of RIL. Both major and minor effects QTL are detected, suggesting a complex genetic architecture. When compared with a previous investigation performed on the same set of RIL, the present study indicates that not all traits of resistance to environmental stressors are affected in the same direction by segregating co-localized QTL. © 2015 The Royal Entomological Society. Fil:Gomez, F.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sambucetti, P.D. 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. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v40_n3_p205_Gomez http://hdl.handle.net/20.500.12110/paper_03076962_v40_n3_p205_Gomez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Dehydration stress
Environmental stress
Small insects
Thermal stress
dehydration
desiccation
environmental conditions
environmental stress
fly
genetic structure
genetic variation
humidity
inbreeding
recombination
survival
temperature effect
Drosophila melanogaster
Hexapoda
spellingShingle Dehydration stress
Environmental stress
Small insects
Thermal stress
dehydration
desiccation
environmental conditions
environmental stress
fly
genetic structure
genetic variation
humidity
inbreeding
recombination
survival
temperature effect
Drosophila melanogaster
Hexapoda
Gomez, Federico Hernan
Sambucetti, Pablo Daniel
Norry, Fabian Marcelo
Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster
topic_facet Dehydration stress
Environmental stress
Small insects
Thermal stress
dehydration
desiccation
environmental conditions
environmental stress
fly
genetic structure
genetic variation
humidity
inbreeding
recombination
survival
temperature effect
Drosophila melanogaster
Hexapoda
description Desiccation, resulting from extremely dry environmental conditions, is a serious obstacle to the survival of organisms. Water is vital for the maintenance of intracellular structure and prevents the irreversible formation of aggregates, an occurrence leading to loss of cellular function. To characterize genetic variation in desiccation stress resistance (DSR) in Drosophila melanogaster Meigen, an intercontinental set of recombinant inbred lines (RIL) is used. Flies are exposed to a low humidity environment (<10% relative humidity) at a constant temperature of 25°C. Desiccation stress resistance is higher in RIL derived from a backcross to the parental stock sensitive to heat stress (from Denmark) than in RIL derived from the reciprocal backcross to the heat-stress resistant stock (from Australia). Composite interval mapping reveals significant quantitative trail loci (QTL) for DSR in the set of RIL. Both major and minor effects QTL are detected, suggesting a complex genetic architecture. When compared with a previous investigation performed on the same set of RIL, the present study indicates that not all traits of resistance to environmental stressors are affected in the same direction by segregating co-localized QTL. © 2015 The Royal Entomological Society.
author Gomez, Federico Hernan
Sambucetti, Pablo Daniel
Norry, Fabian Marcelo
author_facet Gomez, Federico Hernan
Sambucetti, Pablo Daniel
Norry, Fabian Marcelo
author_sort Gomez, Federico Hernan
title Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster
title_short Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster
title_full Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster
title_fullStr Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster
title_full_unstemmed Patterns of variation in desiccation resistance in a set of recombinant inbred lines in Drosophila melanogaster
title_sort patterns of variation in desiccation resistance in a set of recombinant inbred lines in drosophila melanogaster
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03076962_v40_n3_p205_Gomez
http://hdl.handle.net/20.500.12110/paper_03076962_v40_n3_p205_Gomez
work_keys_str_mv AT gomezfedericohernan patternsofvariationindesiccationresistanceinasetofrecombinantinbredlinesindrosophilamelanogaster
AT sambucettipablodaniel patternsofvariationindesiccationresistanceinasetofrecombinantinbredlinesindrosophilamelanogaster
AT norryfabianmarcelo patternsofvariationindesiccationresistanceinasetofrecombinantinbredlinesindrosophilamelanogaster
_version_ 1768545052033810432

Ejemplares similares