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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Publicado: 1996
Materias:
Gradients
Inversions
Isozymes
Linkage disequilibrium
Natural selection
Orthoptera
Trimerotropis pallidipennis
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v76_n4_p346_Matrajt
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 paper:paper_0018067X_v76_n4_p346_Matrajt
record_format dspace
spelling paper:paper_0018067X_v76_n4_p346_Matrajt2023-06-08T14:39:23Z Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient 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. 1996 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v76_n4_p346_Matrajt 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
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.
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
publishDate 1996
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v76_n4_p346_Matrajt
http://hdl.handle.net/20.500.12110/paper_0018067X_v76_n4_p346_Matrajt
_version_ 1768542441250488320

Ejemplares similares