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Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)

Most Thysanoptera possess a haplo-diploid reproductive mode and reproduce via arrhenotoky. Females can mature eggs successively throughout almost their entire life, but in most terebrantian thrips spermiogenesis is complete by adult male eclosion, and testes contain only mature spermatids. In parasi...

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Autores principales: Krueger, Stephanie, Jilge, Marcus, Mound, Laurence, Moritz, Gerald B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5469385/
https://www.ncbi.nlm.nih.gov/pubmed/28931160
http://dx.doi.org/10.1093/jisesa/iex043
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author Krueger, Stephanie
Jilge, Marcus
Mound, Laurence
Moritz, Gerald B.
author_facet Krueger, Stephanie
Jilge, Marcus
Mound, Laurence
Moritz, Gerald B.
author_sort Krueger, Stephanie
collection PubMed
description Most Thysanoptera possess a haplo-diploid reproductive mode and reproduce via arrhenotoky. Females can mature eggs successively throughout almost their entire life, but in most terebrantian thrips spermiogenesis is complete by adult male eclosion, and testes contain only mature spermatids. In parasitoid wasps this phenomenon of preadult spermiogenesis is described as prospermatogeny. It is unclear if prospermatogeny and this predetermined sperm quantity have implications for mating strategy and fitness. In this study, we give a detailed description of mating behavior of the thripine species Echinothrips americanus, which largely corresponds with the only available data of another species of this family, Frankliniella occidentalis (Thysanoptera: Thripidae). With investigations using light microscopy, we describe for the first time the chronological sequence of internal processes during copulation. The release of male accessory gland material followed subsequently by spermatozoa indicates production of a female-determined type 1 spermatophore. Despite prospermatogeny, males are able to inseminate 10 females with an equal amount of spermatozoa. It is only the quantity of glandular material that decreases with the number of previous copulations. Based on these new findings, the reproductive strategy of this species is discussed.
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spelling pubmed-54693852017-06-21 Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae) Krueger, Stephanie Jilge, Marcus Mound, Laurence Moritz, Gerald B. J Insect Sci Research Article Most Thysanoptera possess a haplo-diploid reproductive mode and reproduce via arrhenotoky. Females can mature eggs successively throughout almost their entire life, but in most terebrantian thrips spermiogenesis is complete by adult male eclosion, and testes contain only mature spermatids. In parasitoid wasps this phenomenon of preadult spermiogenesis is described as prospermatogeny. It is unclear if prospermatogeny and this predetermined sperm quantity have implications for mating strategy and fitness. In this study, we give a detailed description of mating behavior of the thripine species Echinothrips americanus, which largely corresponds with the only available data of another species of this family, Frankliniella occidentalis (Thysanoptera: Thripidae). With investigations using light microscopy, we describe for the first time the chronological sequence of internal processes during copulation. The release of male accessory gland material followed subsequently by spermatozoa indicates production of a female-determined type 1 spermatophore. Despite prospermatogeny, males are able to inseminate 10 females with an equal amount of spermatozoa. It is only the quantity of glandular material that decreases with the number of previous copulations. Based on these new findings, the reproductive strategy of this species is discussed. Oxford University Press 2017-04-28 /pmc/articles/PMC5469385/ /pubmed/28931160 http://dx.doi.org/10.1093/jisesa/iex043 Text en © The Authors 2017. Published by Oxford University Press on behalf of Entomological Society of America. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Research Article
Krueger, Stephanie
Jilge, Marcus
Mound, Laurence
Moritz, Gerald B.
Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)
title Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)
title_full Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)
title_fullStr Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)
title_full_unstemmed Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)
title_short Reproductive Behavior of Echinothrips americanus (Thysanoptera: Thripidae)
title_sort reproductive behavior of echinothrips americanus (thysanoptera: thripidae)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5469385/
https://www.ncbi.nlm.nih.gov/pubmed/28931160
http://dx.doi.org/10.1093/jisesa/iex043
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