Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)

Despite genital structures in insects being consistently important as systematic and taxonomy evidence, within assassin bugs (Heteroptera, Reduviidae) at least, the male and female genitalic structures of several subfamilies are poorly or totally unknown. The genital structure is mostly symmetric wi...

Descripción completa

Detalles Bibliográficos
Autores principales: Castro Huertas, Valentina, Melo, María Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Ciencias Naturales
ancestral character reconstruction
male and female genitalia
morphologic characters
phylogeny
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/160225
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-160225
record_format dspace
spelling I19-R120-10915-1602252023-12-28T13:13:50Z http://sedici.unlp.edu.ar/handle/10915/160225 Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae) Castro Huertas, Valentina Melo, María Cecilia 2023-07-02 2023-11-15T18:28:48Z en Ciencias Naturales ancestral character reconstruction male and female genitalia morphologic characters phylogeny Despite genital structures in insects being consistently important as systematic and taxonomy evidence, within assassin bugs (Heteroptera, Reduviidae) at least, the male and female genitalic structures of several subfamilies are poorly or totally unknown. The genital structure is mostly symmetric within Saicinae genera, but male genital asymmetry has been recorded in Gallobelgicus, Polytoxus, and recently Pseudosaica. The subfamily has been considered as closely related to Emesinae and Visayanocorinae but this hypothesis has never been tested using a comprehensive taxa sampling, being a constraint to test morphological traits changes or exploring characters' evolution hypotheses. Here, we compiled a morphological data set of 170 characters that includes external morphological characters and genitalia of both sexes of Saicinae which was analyzed cladistically including 55 terminals, comprising 16 genera (64% of the generic diversity), 43 species of Saicinae and 12 outgroups. Saicinae was recovered as polyphyletic, Saicireta correntina is recovered as sister-species of Empicoris armatus + Collartida (Emesinae), Oncerotrachelus, Carayonia (Visayanocorinae), and the Clade Saicinae sensu stricto. Carayonia orientalis is recovered as sister-species of Saicinae sensu stricto. Ancestral state reconstruction of symmetry of the male genitalia shows an ancestor with symmetric male genitalia, two independent emergences of asymmetrical male genitalia within Saicinae sensu stricto, and the asymmetrical endosomal sclerites appearing before the other asymmetric traits. Facultad de Ciencias Naturales y Museo Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
ancestral character reconstruction
male and female genitalia
morphologic characters
phylogeny
spellingShingle Ciencias Naturales
ancestral character reconstruction
male and female genitalia
morphologic characters
phylogeny
Castro Huertas, Valentina
Melo, María Cecilia
Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)
topic_facet Ciencias Naturales
ancestral character reconstruction
male and female genitalia
morphologic characters
phylogeny
description Despite genital structures in insects being consistently important as systematic and taxonomy evidence, within assassin bugs (Heteroptera, Reduviidae) at least, the male and female genitalic structures of several subfamilies are poorly or totally unknown. The genital structure is mostly symmetric within Saicinae genera, but male genital asymmetry has been recorded in Gallobelgicus, Polytoxus, and recently Pseudosaica. The subfamily has been considered as closely related to Emesinae and Visayanocorinae but this hypothesis has never been tested using a comprehensive taxa sampling, being a constraint to test morphological traits changes or exploring characters' evolution hypotheses. Here, we compiled a morphological data set of 170 characters that includes external morphological characters and genitalia of both sexes of Saicinae which was analyzed cladistically including 55 terminals, comprising 16 genera (64% of the generic diversity), 43 species of Saicinae and 12 outgroups. Saicinae was recovered as polyphyletic, Saicireta correntina is recovered as sister-species of Empicoris armatus + Collartida (Emesinae), Oncerotrachelus, Carayonia (Visayanocorinae), and the Clade Saicinae sensu stricto. Carayonia orientalis is recovered as sister-species of Saicinae sensu stricto. Ancestral state reconstruction of symmetry of the male genitalia shows an ancestor with symmetric male genitalia, two independent emergences of asymmetrical male genitalia within Saicinae sensu stricto, and the asymmetrical endosomal sclerites appearing before the other asymmetric traits.
format Articulo
Articulo
author Castro Huertas, Valentina
Melo, María Cecilia
author_facet Castro Huertas, Valentina
Melo, María Cecilia
author_sort Castro Huertas, Valentina
title Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)
title_short Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)
title_full Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)
title_fullStr Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)
title_full_unstemmed Outside the pattern: Evolution of the genital asymmetry in Saicinae (Hemiptera: Heteroptera: Reduviidae)
title_sort outside the pattern: evolution of the genital asymmetry in saicinae (hemiptera: heteroptera: reduviidae)
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/160225
work_keys_str_mv AT castrohuertasvalentina outsidethepatternevolutionofthegenitalasymmetryinsaicinaehemipteraheteropterareduviidae
AT melomariacecilia outsidethepatternevolutionofthegenitalasymmetryinsaicinaehemipteraheteropterareduviidae
_version_ 1807221853893165056

Ejemplares similares