Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)

Sinipta dalmani is an Argentine grasshopper whose chromosome polymorphisms have been widely studied through cytogenetic, morphometric, and fitness component analyses. The present work analysed molecular and morphometric variation in seven chromosomally differentiated populations from Entre Rios and...

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Detalles Bibliográficos
Autores principales:	Sesarini, Carla Vanina, Remis, Maria Isabel
Publicado:	2008
Materias:	Morphometric traits Orthoptera Population structure RAPD mitochondrial DNA animal article chromosome classification climate gene flow genetic variability genetics grasshopper histology male metabolism phenotype random amplified polymorphic DNA Animals Chromosomes Climate DNA, Mitochondrial Gene Flow Grasshoppers Male Phenotype Random Amplified Polymorphic DNA Technique Variation (Genetics) Acrididae Sinipta dalmani
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00166707_v133_n3_p295_Sesarini http://hdl.handle.net/20.500.12110/paper_00166707_v133_n3_p295_Sesarini
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00166707_v133_n3_p295_Sesarini
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spelling	paper:paper_00166707_v133_n3_p295_Sesarini2023-06-08T14:38:29Z Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae) Sesarini, Carla Vanina Remis, Maria Isabel Morphometric traits Orthoptera Population structure RAPD mitochondrial DNA animal article chromosome classification climate gene flow genetic variability genetics grasshopper histology male metabolism phenotype random amplified polymorphic DNA Animals Chromosomes Climate DNA, Mitochondrial Gene Flow Grasshoppers Male Phenotype Random Amplified Polymorphic DNA Technique Variation (Genetics) Acrididae Orthoptera Sinipta dalmani Sinipta dalmani is an Argentine grasshopper whose chromosome polymorphisms have been widely studied through cytogenetic, morphometric, and fitness component analyses. The present work analysed molecular and morphometric variation in seven chromosomally differentiated populations from Entre Rios and Buenos Aires provinces to analyse population structure. Molecular studies were performed studying RAPD loci and morphometric analyses were carried out measuring five morphometric traits. Genetic variability was high in all studied populations and was characterized by a decrease in H as a function of latitude and temperature. Both conventional FST analysis and Bayesian approach for dominant marker showed that there were significant genetic differences among all populations, between provinces, and among populations within provinces. Entre Rios populations showed higher mean numbers of migrants per generation as well as low genetic differentiation and high gene flow with almost all populations whereas Buenos Aires populations may be considered as a result of a more recently colonization. There is considerable morphometric variation between populations and this variation correlates with latitude and temperature. Our results suggest that selection contributes to phenotypic differentiation among populations by moulding the differences in trait means whereas genetic drift is responsible for differences in the matrix of variance-covariance. The gene flow detected is insufficient to prevent phenotypic and chromosome divergences. © 2007 Springer Science+Business Media B.V. Fil:Sesarini, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Remis, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00166707_v133_n3_p295_Sesarini http://hdl.handle.net/20.500.12110/paper_00166707_v133_n3_p295_Sesarini
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Morphometric traits Orthoptera Population structure RAPD mitochondrial DNA animal article chromosome classification climate gene flow genetic variability genetics grasshopper histology male metabolism phenotype random amplified polymorphic DNA Animals Chromosomes Climate DNA, Mitochondrial Gene Flow Grasshoppers Male Phenotype Random Amplified Polymorphic DNA Technique Variation (Genetics) Acrididae Orthoptera Sinipta dalmani
spellingShingle	Morphometric traits Orthoptera Population structure RAPD mitochondrial DNA animal article chromosome classification climate gene flow genetic variability genetics grasshopper histology male metabolism phenotype random amplified polymorphic DNA Animals Chromosomes Climate DNA, Mitochondrial Gene Flow Grasshoppers Male Phenotype Random Amplified Polymorphic DNA Technique Variation (Genetics) Acrididae Orthoptera Sinipta dalmani Sesarini, Carla Vanina Remis, Maria Isabel Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)
topic_facet	Morphometric traits Orthoptera Population structure RAPD mitochondrial DNA animal article chromosome classification climate gene flow genetic variability genetics grasshopper histology male metabolism phenotype random amplified polymorphic DNA Animals Chromosomes Climate DNA, Mitochondrial Gene Flow Grasshoppers Male Phenotype Random Amplified Polymorphic DNA Technique Variation (Genetics) Acrididae Orthoptera Sinipta dalmani
description	Sinipta dalmani is an Argentine grasshopper whose chromosome polymorphisms have been widely studied through cytogenetic, morphometric, and fitness component analyses. The present work analysed molecular and morphometric variation in seven chromosomally differentiated populations from Entre Rios and Buenos Aires provinces to analyse population structure. Molecular studies were performed studying RAPD loci and morphometric analyses were carried out measuring five morphometric traits. Genetic variability was high in all studied populations and was characterized by a decrease in H as a function of latitude and temperature. Both conventional FST analysis and Bayesian approach for dominant marker showed that there were significant genetic differences among all populations, between provinces, and among populations within provinces. Entre Rios populations showed higher mean numbers of migrants per generation as well as low genetic differentiation and high gene flow with almost all populations whereas Buenos Aires populations may be considered as a result of a more recently colonization. There is considerable morphometric variation between populations and this variation correlates with latitude and temperature. Our results suggest that selection contributes to phenotypic differentiation among populations by moulding the differences in trait means whereas genetic drift is responsible for differences in the matrix of variance-covariance. The gene flow detected is insufficient to prevent phenotypic and chromosome divergences. © 2007 Springer Science+Business Media B.V.
author	Sesarini, Carla Vanina Remis, Maria Isabel
author_facet	Sesarini, Carla Vanina Remis, Maria Isabel
author_sort	Sesarini, Carla Vanina
title	Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)
title_short	Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)
title_full	Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)
title_fullStr	Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)
title_full_unstemmed	Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)
title_sort	molecular and morphometric variation in chromosomally differentiated populations of the grasshopper sinipta dalmani (orthopthera: acrididae)
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00166707_v133_n3_p295_Sesarini http://hdl.handle.net/20.500.12110/paper_00166707_v133_n3_p295_Sesarini
work_keys_str_mv	AT sesarinicarlavanina molecularandmorphometricvariationinchromosomallydifferentiatedpopulationsofthegrasshoppersiniptadalmaniorthoptheraacrididae AT remismariaisabel molecularandmorphometricvariationinchromosomallydifferentiatedpopulationsofthegrasshoppersiniptadalmaniorthoptheraacrididae
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Molecular and morphometric variation in chromosomally differentiated populations of the grasshopper Sinipta dalmani (Orthopthera: Acrididae)

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