Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina

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Clinal analysis for fitness-related traits provides a well-known approach to investigate adaptive evolution. Several fitness-related traits (developmental time, thorax length, wing length and wing loading) were measured at two laboratory generations (G7 and G33) of D. buzzatii from an altitudinal gr...

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Detalles Bibliográficos
Autores principales: Sambucetti, P., Loeschcke, V., Norry, F.M.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2006
Materias:
altitude
Argentina
article
body size
development
Drosophila
drosophila buzzatii
evolution
forelimb
genetic trait
nonhuman
thorax
time
Altitude
Animals
Body Size
Female
Male
Temperature
Time Factors
Variation (Genetics)
Wing
Drosophila buzzatii
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00180661_v143_n2006_p77_Sambucetti
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paperaa:paper_00180661_v143_n2006_p77_Sambucetti
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spelling paperaa:paper_00180661_v143_n2006_p77_Sambucetti2023-06-12T16:42:04Z Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina Hereditas 2006;143(2006):77-83 Sambucetti, P. Loeschcke, V. Norry, F.M. altitude Argentina article body size development Drosophila drosophila buzzatii evolution forelimb genetic trait nonhuman thorax time Altitude Animals Argentina Body Size Drosophila Female Male Temperature Time Factors Variation (Genetics) Wing Drosophila buzzatii Clinal analysis for fitness-related traits provides a well-known approach to investigate adaptive evolution. Several fitness-related traits (developmental time, thorax length, wing length and wing loading) were measured at two laboratory generations (G7 and G33) of D. buzzatii from an altitudinal gradient from northwestern Argentina, where significant thermal differences persist. Developmental time (DT) was positively correlated with altitude of origin of population. Further, DT was negatively correlated with maximal mean temperature at the site of origin of population, and this thermal variable decreases with altitude. Wing loading tended to be larger in highland than in lowland populations, suggesting that flight performance is subject to stronger selection pressure in highland populations. Developmental time showed a significant increase with laboratory generation number. There was no significant correlation between developmental time and body size across populations along the altitudinal cline of DT. This result illustrates that developmental time and body size do not always evolve in the same direction, even though both traits are often positively and genetically correlated in a well-known tradeoff in Drosophila. Fil:Sambucetti, P. 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. 2006 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00180661_v143_n2006_p77_Sambucetti
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
topic altitude
Argentina
article
body size
development
Drosophila
drosophila buzzatii
evolution
forelimb
genetic trait
nonhuman
thorax
time
Altitude
Animals
Argentina
Body Size
Drosophila
Female
Male
Temperature
Time Factors
Variation (Genetics)
Wing
Drosophila buzzatii
spellingShingle altitude
Argentina
article
body size
development
Drosophila
drosophila buzzatii
evolution
forelimb
genetic trait
nonhuman
thorax
time
Altitude
Animals
Argentina
Body Size
Drosophila
Female
Male
Temperature
Time Factors
Variation (Genetics)
Wing
Drosophila buzzatii
Sambucetti, P.
Loeschcke, V.
Norry, F.M.
Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina
topic_facet altitude
Argentina
article
body size
development
Drosophila
drosophila buzzatii
evolution
forelimb
genetic trait
nonhuman
thorax
time
Altitude
Animals
Argentina
Body Size
Drosophila
Female
Male
Temperature
Time Factors
Variation (Genetics)
Wing
Drosophila buzzatii
description Clinal analysis for fitness-related traits provides a well-known approach to investigate adaptive evolution. Several fitness-related traits (developmental time, thorax length, wing length and wing loading) were measured at two laboratory generations (G7 and G33) of D. buzzatii from an altitudinal gradient from northwestern Argentina, where significant thermal differences persist. Developmental time (DT) was positively correlated with altitude of origin of population. Further, DT was negatively correlated with maximal mean temperature at the site of origin of population, and this thermal variable decreases with altitude. Wing loading tended to be larger in highland than in lowland populations, suggesting that flight performance is subject to stronger selection pressure in highland populations. Developmental time showed a significant increase with laboratory generation number. There was no significant correlation between developmental time and body size across populations along the altitudinal cline of DT. This result illustrates that developmental time and body size do not always evolve in the same direction, even though both traits are often positively and genetically correlated in a well-known tradeoff in Drosophila.
format Artículo
Artículo
publishedVersion
author Sambucetti, P.
Loeschcke, V.
Norry, F.M.
author_facet Sambucetti, P.
Loeschcke, V.
Norry, F.M.
author_sort Sambucetti, P.
title Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina
title_short Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina
title_full Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina
title_fullStr Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina
title_full_unstemmed Developmental time and size-related traits in Drosophila buzzatii along an altitudinal gradient from Argentina
title_sort developmental time and size-related traits in drosophila buzzatii along an altitudinal gradient from argentina
publishDate 2006
url http://hdl.handle.net/20.500.12110/paper_00180661_v143_n2006_p77_Sambucetti
work_keys_str_mv AT sambucettip developmentaltimeandsizerelatedtraitsindrosophilabuzzatiialonganaltitudinalgradientfromargentina
AT loeschckev developmentaltimeandsizerelatedtraitsindrosophilabuzzatiialonganaltitudinalgradientfromargentina
AT norryfm developmentaltimeandsizerelatedtraitsindrosophilabuzzatiialonganaltitudinalgradientfromargentina
_version_ 1769810314176495616

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