300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling

Orthoptera is the most diverse order among the polyneopteran groups and includes familiar insects, such as grasshoppers, crickets, katydids, and their kin. Due to a long history of conflicting classification schemes based on different interpretations of morphological characters, the phylogenetic rel...

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Detalles Bibliográficos
Autores principales: Song, Hojun, Amédégnato, Christiane, Cigliano, María Marta, Desutter Grandcolas, Laure, Heads, Sam W., Huang, Yuan, Otte, Daniel, Whiting, Michael F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Naturales
Orthoptera
Phylogeny
Comprehensive taxon
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/108443
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-108443
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Orthoptera
Phylogeny
Comprehensive taxon
spellingShingle Ciencias Naturales
Orthoptera
Phylogeny
Comprehensive taxon
Song, Hojun
Amédégnato, Christiane
Cigliano, María Marta
Desutter Grandcolas, Laure
Heads, Sam W.
Huang, Yuan
Otte, Daniel
Whiting, Michael F.
300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
topic_facet Ciencias Naturales
Orthoptera
Phylogeny
Comprehensive taxon
description Orthoptera is the most diverse order among the polyneopteran groups and includes familiar insects, such as grasshoppers, crickets, katydids, and their kin. Due to a long history of conflicting classification schemes based on different interpretations of morphological characters, the phylogenetic relationships within Orthoptera are poorly understood and its higher classification has remained unstable. In this study, we establish a robust phylogeny of Orthoptera including 36 of 40 families representing all 15 currently recognized superfamilies and based on complete mitochondrial genomes and four nuclear loci, in order to test previous phylogenetic hypotheses and to provide a framework for a natural classification and a reference for studying the pattern of divergence and diversification. We find strong support for monophyletic suborders (Ensifera and Caelifera) as well as major superfamilies. Our results corroborate most of the higher-level relationships previously proposed for Caelifera, but suggest some novel relationships for Ensifera. Using fossil calibrations, we provide divergence time estimates for major orthopteran lineages and show that the current diversity has been shaped by dynamic shifts of diversification rates at different geological times across different lineages. We also show that mitochondrial tRNA gene orders have been relatively stable throughout the evolutionary history of Orthoptera, but a major tRNA gene rearrangement occurred in the common ancestor of Tetrigoidea and Acridomorpha, thereby representing a robust molecular synapomorphy, which has persisted for 250 Myr.
format Articulo
Articulo
author Song, Hojun
Amédégnato, Christiane
Cigliano, María Marta
Desutter Grandcolas, Laure
Heads, Sam W.
Huang, Yuan
Otte, Daniel
Whiting, Michael F.
author_facet Song, Hojun
Amédégnato, Christiane
Cigliano, María Marta
Desutter Grandcolas, Laure
Heads, Sam W.
Huang, Yuan
Otte, Daniel
Whiting, Michael F.
author_sort Song, Hojun
title 300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
title_short 300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
title_full 300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
title_fullStr 300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
title_full_unstemmed 300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
title_sort 300 million years of diversification: elucidating the patterns of orthopteran evolution based on comprehensive taxon and gene sampling
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/108443
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