Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World
Multiple stress resistance traits were investigated in the cactophilic fly Drosophila buzzatii. Adults from seven populations derived from North-Western Argentina were compared with respect to traits relevant for thermal stress resistance and for resistance to other forms of environmental stress. Th...
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todo:paper_1010061X_v18_n4_p829_Sorensen2023-10-03T15:55:51Z Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World Sørensen, J.G. Norry, F.M. Scannapieco, A.C. Loeschcke, V. Altitudinal gradient Desiccation resistance Heat-shock protein Knock-down resistance Starvation resistance heat shock protein 70 adaptation altitude environmental stress heat shock stress resistance adaptation altitude analysis of variance animal Argentina climate comparative study conference paper dehydration Drosophila metabolism pathophysiology physiology stress temperature Adaptation, Physiological Altitude Analysis of Variance Animals Argentina Climate Dehydration Drosophila HSP70 Heat-Shock Proteins Stress Temperature Argentina South America Western Hemisphere World Drosophila buzzatii Multiple stress resistance traits were investigated in the cactophilic fly Drosophila buzzatii. Adults from seven populations derived from North-Western Argentina were compared with respect to traits relevant for thermal stress resistance and for resistance to other forms of environmental stress. The populations were collected along an altitudinal gradient spanning more than 2000 m in height, showing large climatic differences. The results suggest that knock-down resistance to heat stress, desiccation resistance and Hsp70 expression at a relatively severe stressful temperature best reflect thermal adaptation in this species. Furthermore, cold resistance seemed to be of less importance than heat resistance, at least for the adult life stage, in these populations. Clinal variation in thermal resistance traits over short geographical distances suggests relatively strong adaptive differentiation of the populations. This study provides the first evidence for altitudinal differentiation in stress-related traits, and suggests that Hsp70 expression level can be related to altitudinal clines of heat-stress resistance. © 2005 European Society for Evolutionary Biology. Fil:Norry, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Scannapieco, A.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1010061X_v18_n4_p829_Sorensen |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Altitudinal gradient Desiccation resistance Heat-shock protein Knock-down resistance Starvation resistance heat shock protein 70 adaptation altitude environmental stress heat shock stress resistance adaptation altitude analysis of variance animal Argentina climate comparative study conference paper dehydration Drosophila metabolism pathophysiology physiology stress temperature Adaptation, Physiological Altitude Analysis of Variance Animals Argentina Climate Dehydration Drosophila HSP70 Heat-Shock Proteins Stress Temperature Argentina South America Western Hemisphere World Drosophila buzzatii |
| spellingShingle |
Altitudinal gradient Desiccation resistance Heat-shock protein Knock-down resistance Starvation resistance heat shock protein 70 adaptation altitude environmental stress heat shock stress resistance adaptation altitude analysis of variance animal Argentina climate comparative study conference paper dehydration Drosophila metabolism pathophysiology physiology stress temperature Adaptation, Physiological Altitude Analysis of Variance Animals Argentina Climate Dehydration Drosophila HSP70 Heat-Shock Proteins Stress Temperature Argentina South America Western Hemisphere World Drosophila buzzatii Sørensen, J.G. Norry, F.M. Scannapieco, A.C. Loeschcke, V. Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World |
| topic_facet |
Altitudinal gradient Desiccation resistance Heat-shock protein Knock-down resistance Starvation resistance heat shock protein 70 adaptation altitude environmental stress heat shock stress resistance adaptation altitude analysis of variance animal Argentina climate comparative study conference paper dehydration Drosophila metabolism pathophysiology physiology stress temperature Adaptation, Physiological Altitude Analysis of Variance Animals Argentina Climate Dehydration Drosophila HSP70 Heat-Shock Proteins Stress Temperature Argentina South America Western Hemisphere World Drosophila buzzatii |
| description |
Multiple stress resistance traits were investigated in the cactophilic fly Drosophila buzzatii. Adults from seven populations derived from North-Western Argentina were compared with respect to traits relevant for thermal stress resistance and for resistance to other forms of environmental stress. The populations were collected along an altitudinal gradient spanning more than 2000 m in height, showing large climatic differences. The results suggest that knock-down resistance to heat stress, desiccation resistance and Hsp70 expression at a relatively severe stressful temperature best reflect thermal adaptation in this species. Furthermore, cold resistance seemed to be of less importance than heat resistance, at least for the adult life stage, in these populations. Clinal variation in thermal resistance traits over short geographical distances suggests relatively strong adaptive differentiation of the populations. This study provides the first evidence for altitudinal differentiation in stress-related traits, and suggests that Hsp70 expression level can be related to altitudinal clines of heat-stress resistance. © 2005 European Society for Evolutionary Biology. |
| format |
JOUR |
| author |
Sørensen, J.G. Norry, F.M. Scannapieco, A.C. Loeschcke, V. |
| author_facet |
Sørensen, J.G. Norry, F.M. Scannapieco, A.C. Loeschcke, V. |
| author_sort |
Sørensen, J.G. |
| title |
Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World |
| title_short |
Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World |
| title_full |
Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World |
| title_fullStr |
Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World |
| title_full_unstemmed |
Altitudinal variation for stress resistance traits and thermal adaptation in adult Drosophila buzzatii from the New World |
| title_sort |
altitudinal variation for stress resistance traits and thermal adaptation in adult drosophila buzzatii from the new world |
| url |
http://hdl.handle.net/20.500.12110/paper_1010061X_v18_n4_p829_Sorensen |
| work_keys_str_mv |
AT sørensenjg altitudinalvariationforstressresistancetraitsandthermaladaptationinadultdrosophilabuzzatiifromthenewworld AT norryfm altitudinalvariationforstressresistancetraitsandthermaladaptationinadultdrosophilabuzzatiifromthenewworld AT scannapiecoac altitudinalvariationforstressresistancetraitsandthermaladaptationinadultdrosophilabuzzatiifromthenewworld AT loeschckev altitudinalvariationforstressresistancetraitsandthermaladaptationinadultdrosophilabuzzatiifromthenewworld |
| _version_ |
1782031087091843072 |