Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics

Detalhes bibliográficos
Autor(a) principal: da Silva, Iago Bueno [UNESP]
Data de Publicação: 2019
Outros Autores: Haifig, Ives, Vargo, Edward L., Casarin, Fabiana Elaine, da Mota, Marcelo Luiz, Lima, Juliana Toledo, Costa-Leonardo, Ana Maria [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1111/1744-7917.12727
http://hdl.handle.net/11449/201302
Resumo: Termite colonies are usually headed by primary reproductives, which establish nests during the swarming season. However, secondary reproductives may develop in some species and become supplementary or replacement breeders, extending colony lifespan. Here we investigate the developmental origin, fecundity and genetic characterization of ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren), using morphometrical and histological techniques, five microsatellite loci and the COI mitochondrial DNA. Twelve measurements performed on 208 apterous individuals of N. aquilinus revealed 10 groups, including ergatoid females, which developed from major workers through two successive molts, and were characterized by the presence of imaginal features such as eyes and wing buds. The differentiation of these features was correlated to physogastric development in these ergatoids. Histology revealed oocytes in all maturation stages in worker-derived reproductives of N. aquilinus, presence of nonflagellate spermatozoa inside the spermatheca, and royal fat body. Thus, ergatoid reproductives were reproductively functional. According to the genotypes of 221 individuals from 11 nests, and mitochondrial haplotypes of 43 ergatoids, 73% of the colonies were simple families, whereas 27% were extended families. Despite the occurrence of related reproductives, low inbreeding rates were detected within and among colonies. Such values could be explained given that sib mating itself cannot result in a higher inbreeding rate but depend on several factors discussed in detail. This is the first study to investigate the genetic structure of termite colonies influenced by the development of ergatoids, and further investigations are encouraged to understand the influence of these reproductives on colony lifespan.
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spelling Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and geneticsbreeding systemcaste differentiationCOIgenotypingmicrosatellitesreproductionTermite colonies are usually headed by primary reproductives, which establish nests during the swarming season. However, secondary reproductives may develop in some species and become supplementary or replacement breeders, extending colony lifespan. Here we investigate the developmental origin, fecundity and genetic characterization of ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren), using morphometrical and histological techniques, five microsatellite loci and the COI mitochondrial DNA. Twelve measurements performed on 208 apterous individuals of N. aquilinus revealed 10 groups, including ergatoid females, which developed from major workers through two successive molts, and were characterized by the presence of imaginal features such as eyes and wing buds. The differentiation of these features was correlated to physogastric development in these ergatoids. Histology revealed oocytes in all maturation stages in worker-derived reproductives of N. aquilinus, presence of nonflagellate spermatozoa inside the spermatheca, and royal fat body. Thus, ergatoid reproductives were reproductively functional. According to the genotypes of 221 individuals from 11 nests, and mitochondrial haplotypes of 43 ergatoids, 73% of the colonies were simple families, whereas 27% were extended families. Despite the occurrence of related reproductives, low inbreeding rates were detected within and among colonies. Such values could be explained given that sib mating itself cannot result in a higher inbreeding rate but depend on several factors discussed in detail. This is the first study to investigate the genetic structure of termite colonies influenced by the development of ergatoids, and further investigations are encouraged to understand the influence of these reproductives on colony lifespan.Laboratório de Cupins Departamento de Biologia Instituto de Biociências Universidade Estadual Paulista—UNESPCentro de Ciências Naturais e Humanas Universidade Federal do ABCDepartment of Entomology Texas A&M UniversityDepartamento de Ciências Biológicas Universidade Federal de São Paulo—UNIFESPInstituto de Ciências Agrárias Universidade Federal de Uberlândia UFUCentro de Estudos em Recursos Naturais Universidade Estadual de Mato Grosso do SulLaboratório de Cupins Departamento de Biologia Instituto de Biociências Universidade Estadual Paulista—UNESPUniversidade Estadual Paulista (Unesp)Universidade Federal do ABC (UFABC)Texas A&M UniversityUniversidade Federal de São Paulo (UNIFESP)Universidade Federal de Uberlândia (UFU)Universidade Estadual de Mato Grosso do Sul (UEMS)da Silva, Iago Bueno [UNESP]Haifig, IvesVargo, Edward L.Casarin, Fabiana Elaineda Mota, Marcelo LuizLima, Juliana ToledoCosta-Leonardo, Ana Maria [UNESP]2020-12-12T02:29:08Z2020-12-12T02:29:08Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1111/1744-7917.12727Insect Science.1744-79171672-9609http://hdl.handle.net/11449/20130210.1111/1744-7917.127272-s2.0-85074574658Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInsect Scienceinfo:eu-repo/semantics/openAccess2021-10-22T16:54:17Zoai:repositorio.unesp.br:11449/201302Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:02:17.326897Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
title Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
spellingShingle Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
da Silva, Iago Bueno [UNESP]
breeding system
caste differentiation
COI
genotyping
microsatellites
reproduction
title_short Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
title_full Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
title_fullStr Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
title_full_unstemmed Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
title_sort Ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren) (Blattaria: Isoptera: Termitidae): developmental origin, fecundity, and genetics
author da Silva, Iago Bueno [UNESP]
author_facet da Silva, Iago Bueno [UNESP]
Haifig, Ives
Vargo, Edward L.
Casarin, Fabiana Elaine
da Mota, Marcelo Luiz
Lima, Juliana Toledo
Costa-Leonardo, Ana Maria [UNESP]
author_role author
author2 Haifig, Ives
Vargo, Edward L.
Casarin, Fabiana Elaine
da Mota, Marcelo Luiz
Lima, Juliana Toledo
Costa-Leonardo, Ana Maria [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
Texas A&M University
Universidade Federal de São Paulo (UNIFESP)
Universidade Federal de Uberlândia (UFU)
Universidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.author.fl_str_mv da Silva, Iago Bueno [UNESP]
Haifig, Ives
Vargo, Edward L.
Casarin, Fabiana Elaine
da Mota, Marcelo Luiz
Lima, Juliana Toledo
Costa-Leonardo, Ana Maria [UNESP]
dc.subject.por.fl_str_mv breeding system
caste differentiation
COI
genotyping
microsatellites
reproduction
topic breeding system
caste differentiation
COI
genotyping
microsatellites
reproduction
description Termite colonies are usually headed by primary reproductives, which establish nests during the swarming season. However, secondary reproductives may develop in some species and become supplementary or replacement breeders, extending colony lifespan. Here we investigate the developmental origin, fecundity and genetic characterization of ergatoid reproductives in the Neotropical termite Nasutitermes aquilinus (Holmgren), using morphometrical and histological techniques, five microsatellite loci and the COI mitochondrial DNA. Twelve measurements performed on 208 apterous individuals of N. aquilinus revealed 10 groups, including ergatoid females, which developed from major workers through two successive molts, and were characterized by the presence of imaginal features such as eyes and wing buds. The differentiation of these features was correlated to physogastric development in these ergatoids. Histology revealed oocytes in all maturation stages in worker-derived reproductives of N. aquilinus, presence of nonflagellate spermatozoa inside the spermatheca, and royal fat body. Thus, ergatoid reproductives were reproductively functional. According to the genotypes of 221 individuals from 11 nests, and mitochondrial haplotypes of 43 ergatoids, 73% of the colonies were simple families, whereas 27% were extended families. Despite the occurrence of related reproductives, low inbreeding rates were detected within and among colonies. Such values could be explained given that sib mating itself cannot result in a higher inbreeding rate but depend on several factors discussed in detail. This is the first study to investigate the genetic structure of termite colonies influenced by the development of ergatoids, and further investigations are encouraged to understand the influence of these reproductives on colony lifespan.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
2020-12-12T02:29:08Z
2020-12-12T02:29:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1111/1744-7917.12727
Insect Science.
1744-7917
1672-9609
http://hdl.handle.net/11449/201302
10.1111/1744-7917.12727
2-s2.0-85074574658
url http://dx.doi.org/10.1111/1744-7917.12727
http://hdl.handle.net/11449/201302
identifier_str_mv Insect Science.
1744-7917
1672-9609
10.1111/1744-7917.12727
2-s2.0-85074574658
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Insect Science
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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