Reproductive Patterns Drive the Gene Flow and Spatial Dispersal of Euschistus heros (Hemiptera: Pentatomidae)

Euschistus heros (Hemiptera: Pentatomidae) has two allopatric strains with a hybrid zone in central Brazil. Asymmetric dispersal and gene flow between these strains of E. heros have been observed, where the South strain (SS) moves more quickly to the northern regions of the country than the North st...

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Published in:Journal of economic entomology 2021-12, Vol.114 (6), p.2346-2354
Main Authors: Hickmann, Frederico, Cordeiro, Erick Goes, Soares, Patrícia Lima, L. Aurélio, Mateus Souza, Schwertner, Cristiano Feldens, Corrêa, Alberto Soares
Format: Article
Language:English
Subjects:
Animal behavior
Animal reproduction
Animals
Assortative mating
Body size
Brazil
Coloration
Dispersal
ECOLOGY AND BEHAVIOR
Euschistus heros
Female
Gene Flow
Genes
Hemiptera
Heteroptera - genetics
Hybridization
Insects
Male
Mating
Neotropical brown stink bug
Pentatomidae
Phenotypes
Population genetics
Reproduction
Reproductive behavior
Reproductive isolation
Stink bugs
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cited_by cdi_FETCH-LOGICAL-b421t-1987dfa9a07445b43682765455ae7e0efb4f106a1b419aa9d640535e5a966d9d3
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container_issue 6
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container_title Journal of economic entomology
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creator Hickmann, Frederico
Cordeiro, Erick Goes
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Schwertner, Cristiano Feldens
Corrêa, Alberto Soares
description Euschistus heros (Hemiptera: Pentatomidae) has two allopatric strains with a hybrid zone in central Brazil. Asymmetric dispersal and gene flow between these strains of E. heros have been observed, where the South strain (SS) moves more quickly to the northern regions of the country than the North strain (NS) to the southern areas. In addition, SS generally has a bigger body size and presents dark brown coloration, and NS is usually smaller in size and presents light brown coloration. Here, we studied the reproductive behavior and tested for the presence of assortative mating and reproductive barriers between the two allopatric strains of E. heros. Nonrandom mating was observed in the SS strain based on mating choice trials and the reproductive isolation indexes. SS females and males prefer to mate with their co-specific (same strain) partner, while NS insects showed no mating preference. The insect's pronotum width was positively associated with the mating choice suggesting size-assortative mating in E. heros. Reciprocal crosses between strains yielded similar reproductive outputs when compared with pure strain crosses, suggesting similar fitness of hybrid pure strains. The asymmetric gene flow in the hybridization zone that favors SS seems to be associated with the reproductive behavior of the species, which favors the typical phenotype found in the SS populations.
doi_str_mv 10.1093/jee/toab190
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Nonrandom mating was observed in the SS strain based on mating choice trials and the reproductive isolation indexes. SS females and males prefer to mate with their co-specific (same strain) partner, while NS insects showed no mating preference. The insect's pronotum width was positively associated with the mating choice suggesting size-assortative mating in E. heros. Reciprocal crosses between strains yielded similar reproductive outputs when compared with pure strain crosses, suggesting similar fitness of hybrid pure strains. The asymmetric gene flow in the hybridization zone that favors SS seems to be associated with the reproductive behavior of the species, which favors the typical phenotype found in the SS populations.</description><identifier>ISSN: 0022-0493</identifier><identifier>EISSN: 1938-291X</identifier><identifier>DOI: 10.1093/jee/toab190</identifier><identifier>PMID: 34657956</identifier><language>eng</language><publisher>US: Entomological Society of America</publisher><subject>Animal behavior ; Animal reproduction ; Animals ; Assortative mating ; Body size ; Brazil ; Coloration ; Dispersal ; ECOLOGY AND BEHAVIOR ; Euschistus heros ; Female ; Gene Flow ; Genes ; Hemiptera ; Heteroptera - genetics ; Hybridization ; Insects ; Male ; Mating ; Neotropical brown stink bug ; Pentatomidae ; Phenotypes ; Population genetics ; Reproduction ; Reproductive behavior ; Reproductive isolation ; Stink bugs</subject><ispartof>Journal of economic entomology, 2021-12, Vol.114 (6), p.2346-2354</ispartof><rights>The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. journals.permissions@oup.com</rights><rights>The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. 2021</rights><rights>The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. 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Aurélio, Mateus Souza</au><au>Schwertner, Cristiano Feldens</au><au>Corrêa, Alberto Soares</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproductive Patterns Drive the Gene Flow and Spatial Dispersal of Euschistus heros (Hemiptera: Pentatomidae)</atitle><jtitle>Journal of economic entomology</jtitle><addtitle>J Econ Entomol</addtitle><date>2021-12-01</date><risdate>2021</risdate><volume>114</volume><issue>6</issue><spage>2346</spage><epage>2354</epage><pages>2346-2354</pages><issn>0022-0493</issn><eissn>1938-291X</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>Euschistus heros (Hemiptera: Pentatomidae) has two allopatric strains with a hybrid zone in central Brazil. Asymmetric dispersal and gene flow between these strains of E. heros have been observed, where the South strain (SS) moves more quickly to the northern regions of the country than the North strain (NS) to the southern areas. In addition, SS generally has a bigger body size and presents dark brown coloration, and NS is usually smaller in size and presents light brown coloration. Here, we studied the reproductive behavior and tested for the presence of assortative mating and reproductive barriers between the two allopatric strains of E. heros. Nonrandom mating was observed in the SS strain based on mating choice trials and the reproductive isolation indexes. SS females and males prefer to mate with their co-specific (same strain) partner, while NS insects showed no mating preference. The insect's pronotum width was positively associated with the mating choice suggesting size-assortative mating in E. heros. Reciprocal crosses between strains yielded similar reproductive outputs when compared with pure strain crosses, suggesting similar fitness of hybrid pure strains. The asymmetric gene flow in the hybridization zone that favors SS seems to be associated with the reproductive behavior of the species, which favors the typical phenotype found in the SS populations.</abstract><cop>US</cop><pub>Entomological Society of America</pub><pmid>34657956</pmid><doi>10.1093/jee/toab190</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-5472-3234</orcidid><orcidid>https://orcid.org/0000-0001-5104-4925</orcidid><orcidid>https://orcid.org/0000-0002-3788-7480</orcidid></addata></record>
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source Oxford Journals Online
subjects Animal behavior
Animal reproduction
Animals
Assortative mating
Body size
Brazil
Coloration
Dispersal
ECOLOGY AND BEHAVIOR
Euschistus heros
Female
Gene Flow
Genes
Hemiptera
Heteroptera - genetics
Hybridization
Insects
Male
Mating
Neotropical brown stink bug
Pentatomidae
Phenotypes
Population genetics
Reproduction
Reproductive behavior
Reproductive isolation
Stink bugs
title Reproductive Patterns Drive the Gene Flow and Spatial Dispersal of Euschistus heros (Hemiptera: Pentatomidae)
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