Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient

Trimerotropis pallidipennis is an American grasshopper whose South American populations are polymorphic for pericentric inversions. The frequencies of some of these rearrangements are correlated with geographical and climatic variables, following similar patterns among different ecological gradients...

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Autores principales:	Matrajt, M., Confalonieri, V., Vilardi, J.
Formato:	JOUR
Materias:	Gradients Inversions Isozymes Linkage disequilibrium Natural selection Orthoptera Trimerotropis pallidipennis
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0018067X_v76_n4_p346_Matrajt
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0018067X_v76_n4_p346_Matrajt
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spelling	todo:paper_0018067X_v76_n4_p346_Matrajt2023-10-03T14:15:24Z Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient Matrajt, M. Confalonieri, V. Vilardi, J. Gradients Inversions Isozymes Linkage disequilibrium Natural selection Orthoptera Trimerotropis pallidipennis Trimerotropis pallidipennis is an American grasshopper whose South American populations are polymorphic for pericentric inversions. The frequencies of some of these rearrangements are correlated with geographical and climatic variables, following similar patterns among different ecological gradients. Hence, this species constitutes a promising model in which the evolutionary significance of inversion systems can be analysed as possible sources of coadapted groups of linked genes. Six samples collected along an altitudinal gradient were assayed jointly for genetic and chromosomal variation. Interestingly, the phenograms constructed with Nei's genetic distances obtained from allozyme and chromosome data were almost identical. This result is produced mainly by esterase loci variation, probably as a consequence of linkage disequilibrium. The evolutionary significance of this association is briefly discussed. ©1996 The Genetical Society of Great Britain. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0018067X_v76_n4_p346_Matrajt
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Gradients Inversions Isozymes Linkage disequilibrium Natural selection Orthoptera Trimerotropis pallidipennis
spellingShingle	Gradients Inversions Isozymes Linkage disequilibrium Natural selection Orthoptera Trimerotropis pallidipennis Matrajt, M. Confalonieri, V. Vilardi, J. Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
topic_facet	Gradients Inversions Isozymes Linkage disequilibrium Natural selection Orthoptera Trimerotropis pallidipennis
description	Trimerotropis pallidipennis is an American grasshopper whose South American populations are polymorphic for pericentric inversions. The frequencies of some of these rearrangements are correlated with geographical and climatic variables, following similar patterns among different ecological gradients. Hence, this species constitutes a promising model in which the evolutionary significance of inversion systems can be analysed as possible sources of coadapted groups of linked genes. Six samples collected along an altitudinal gradient were assayed jointly for genetic and chromosomal variation. Interestingly, the phenograms constructed with Nei's genetic distances obtained from allozyme and chromosome data were almost identical. This result is produced mainly by esterase loci variation, probably as a consequence of linkage disequilibrium. The evolutionary significance of this association is briefly discussed. ©1996 The Genetical Society of Great Britain.
format	JOUR
author	Matrajt, M. Confalonieri, V. Vilardi, J.
author_facet	Matrajt, M. Confalonieri, V. Vilardi, J.
author_sort	Matrajt, M.
title	Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
title_short	Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
title_full	Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
title_fullStr	Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
title_full_unstemmed	Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
title_sort	parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
url	http://hdl.handle.net/20.500.12110/paper_0018067X_v76_n4_p346_Matrajt
work_keys_str_mv	AT matrajtm paralleladaptivepatternsofallozymeandinversionpolymorphismsonanecologicalgradient AT confalonieriv paralleladaptivepatternsofallozymeandinversionpolymorphismsonanecologicalgradient AT vilardij paralleladaptivepatternsofallozymeandinversionpolymorphismsonanecologicalgradient
_version_	1807317963727962112

Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient

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