Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns

Leptysma argentina Bruner, Trimerotropis pallidennis (Burmeister), and Cornops aquaticum Bruner are South-American grasshoppers (Orthoptera: Acrididae) whose chromosome polymorphisms were intensively studied. Leptysma argentina lives in central-east Argentina and in Uruguay and was polymorphic for a...

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Autores principales: Colombo, Pablo Cesar, Remis, Maria Isabel
Publicado: 2015
Materias:
Bergmann rule
chromosome polymorphisms
Cornops aquaticum
Leptysma argentina
morphometrical studies
Trimerotropis pallidipennis
body size
chromosome
genetic variation
grasshopper
intrapopulation variation
morphometry
polymorphism
sexual selection
South America
Uruguay
Acrididae
Orthoptera
Schistocerca americana
Trimerotropis
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v98_n2_p570_Colombo
http://hdl.handle.net/20.500.12110/paper_00154040_v98_n2_p570_Colombo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00154040_v98_n2_p570_Colombo
record_format dspace
spelling paper:paper_00154040_v98_n2_p570_Colombo2023-06-08T14:38:02Z Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns Colombo, Pablo Cesar Remis, Maria Isabel Bergmann rule chromosome polymorphisms Cornops aquaticum Leptysma argentina morphometrical studies Trimerotropis pallidipennis body size chromosome genetic variation grasshopper intrapopulation variation morphometry polymorphism sexual selection South America Uruguay Acrididae Cornops aquaticum Leptysma argentina Orthoptera Schistocerca americana Trimerotropis Trimerotropis pallidipennis Leptysma argentina Bruner, Trimerotropis pallidennis (Burmeister), and Cornops aquaticum Bruner are South-American grasshoppers (Orthoptera: Acrididae) whose chromosome polymorphisms were intensively studied. Leptysma argentina lives in central-east Argentina and in Uruguay and was polymorphic for a centric fusion whose presence is significantly correlated with a larger body size; this parameter was shown to be associated with sexual selection and longevity selection; this species exhibited a marked latitudinal Bergmann pattern. In contrast, Trimerotropis pallidipennis followed a converse altitudinal Bergmann cline; males from higher altitudes were significantly smaller. This species supported an extended polymorphism for several inversions, which are correlated intrapopulationally with larger body size. Finally, C. aquaticum showed an evident example of Bergmann's rule for tegmen length; this species was polymorphic for 3 centric fusions, whose frequency increased southward, as in L. argentina. One of the fusions was associated with increased body size. We noticed that in all cases the rearrangement that was related to body size increased in the direction in which this variable was adaptive, thus suggesting a possible involvement of chromosome polymorphism in body size selection. Fil:Colombo, P.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. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v98_n2_p570_Colombo http://hdl.handle.net/20.500.12110/paper_00154040_v98_n2_p570_Colombo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bergmann rule
chromosome polymorphisms
Cornops aquaticum
Leptysma argentina
morphometrical studies
Trimerotropis pallidipennis
body size
chromosome
genetic variation
grasshopper
intrapopulation variation
morphometry
polymorphism
sexual selection
South America
Uruguay
Acrididae
Cornops aquaticum
Leptysma argentina
Orthoptera
Schistocerca americana
Trimerotropis
Trimerotropis pallidipennis
spellingShingle Bergmann rule
chromosome polymorphisms
Cornops aquaticum
Leptysma argentina
morphometrical studies
Trimerotropis pallidipennis
body size
chromosome
genetic variation
grasshopper
intrapopulation variation
morphometry
polymorphism
sexual selection
South America
Uruguay
Acrididae
Cornops aquaticum
Leptysma argentina
Orthoptera
Schistocerca americana
Trimerotropis
Trimerotropis pallidipennis
Colombo, Pablo Cesar
Remis, Maria Isabel
Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns
topic_facet Bergmann rule
chromosome polymorphisms
Cornops aquaticum
Leptysma argentina
morphometrical studies
Trimerotropis pallidipennis
body size
chromosome
genetic variation
grasshopper
intrapopulation variation
morphometry
polymorphism
sexual selection
South America
Uruguay
Acrididae
Cornops aquaticum
Leptysma argentina
Orthoptera
Schistocerca americana
Trimerotropis
Trimerotropis pallidipennis
description Leptysma argentina Bruner, Trimerotropis pallidennis (Burmeister), and Cornops aquaticum Bruner are South-American grasshoppers (Orthoptera: Acrididae) whose chromosome polymorphisms were intensively studied. Leptysma argentina lives in central-east Argentina and in Uruguay and was polymorphic for a centric fusion whose presence is significantly correlated with a larger body size; this parameter was shown to be associated with sexual selection and longevity selection; this species exhibited a marked latitudinal Bergmann pattern. In contrast, Trimerotropis pallidipennis followed a converse altitudinal Bergmann cline; males from higher altitudes were significantly smaller. This species supported an extended polymorphism for several inversions, which are correlated intrapopulationally with larger body size. Finally, C. aquaticum showed an evident example of Bergmann's rule for tegmen length; this species was polymorphic for 3 centric fusions, whose frequency increased southward, as in L. argentina. One of the fusions was associated with increased body size. We noticed that in all cases the rearrangement that was related to body size increased in the direction in which this variable was adaptive, thus suggesting a possible involvement of chromosome polymorphism in body size selection.
author Colombo, Pablo Cesar
Remis, Maria Isabel
author_facet Colombo, Pablo Cesar
Remis, Maria Isabel
author_sort Colombo, Pablo Cesar
title Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns
title_short Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns
title_full Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns
title_fullStr Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns
title_full_unstemmed Morphometric Variation in Chromosomally Polymorphic Grasshoppers (Orthoptera: Acrididae) from South America: Bergmann and Converse Bergmann Patterns
title_sort morphometric variation in chromosomally polymorphic grasshoppers (orthoptera: acrididae) from south america: bergmann and converse bergmann patterns
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00154040_v98_n2_p570_Colombo
http://hdl.handle.net/20.500.12110/paper_00154040_v98_n2_p570_Colombo
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AT remismariaisabel morphometricvariationinchromosomallypolymorphicgrasshoppersorthopteraacrididaefromsouthamericabergmannandconversebergmannpatterns
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