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Abstract:

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.

Registro:

Documento: Artículo
Título:Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient
Autor:Matrajt, M.; Confalonieri, V.; Vilardi, J.
Filiación:Laboratorio de Genética, Dto. Cs. Biológicas, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas
Palabras clave:Gradients; Inversions; Isozymes; Linkage disequilibrium; Natural selection; Orthoptera; Trimerotropis pallidipennis
Año:1996
Volumen:76
Número:4
Página de inicio:346
Página de fin:354
DOI: http://dx.doi.org/10.1038/hdy.1996.52
Título revista:Heredity
Título revista abreviado:Heredity
ISSN:0018067X
CODEN:HDTYA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0018067X_v76_n4_p346_Matrajt

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Citas:

---------- APA ----------
Matrajt, M., Confalonieri, V. & Vilardi, J. (1996) . Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient. Heredity, 76(4), 346-354.
http://dx.doi.org/10.1038/hdy.1996.52
---------- CHICAGO ----------
Matrajt, M., Confalonieri, V., Vilardi, J. "Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient" . Heredity 76, no. 4 (1996) : 346-354.
http://dx.doi.org/10.1038/hdy.1996.52
---------- MLA ----------
Matrajt, M., Confalonieri, V., Vilardi, J. "Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient" . Heredity, vol. 76, no. 4, 1996, pp. 346-354.
http://dx.doi.org/10.1038/hdy.1996.52
---------- VANCOUVER ----------
Matrajt, M., Confalonieri, V., Vilardi, J. Parallel adaptive patterns of allozyme and inversion polymorphisms on an ecological gradient. Heredity. 1996;76(4):346-354.
http://dx.doi.org/10.1038/hdy.1996.52