Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).

Based on advanced light and electron microscopy, we describe the male reproductive system and sperm development of Limodromus assimilis. The genital tract consists of pairs of uni-follicular testes, spermatic ducts with diverticula regions, seminal vesicles, accessory glands, an unpaired ejaculatory...

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Main Authors: Lea F Schubert, Stephanie Krüger, Gerald B Moritz, Veit Schubert
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5516968?pdf=render
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author Lea F Schubert
Stephanie Krüger
Gerald B Moritz
Veit Schubert
author_facet Lea F Schubert
Stephanie Krüger
Gerald B Moritz
Veit Schubert
author_sort Lea F Schubert
collection DOAJ
description Based on advanced light and electron microscopy, we describe the male reproductive system and sperm development of Limodromus assimilis. The genital tract consists of pairs of uni-follicular testes, spermatic ducts with diverticula regions, seminal vesicles, accessory glands, an unpaired ejaculatory duct and an aedeagus containing an internal sac equipped with sclerotic scales. Based on their morphology, we draw conclusions about their functions. After spermatogenesis within the follicle, the spermatozoa become released from the sperm cysts. The single spermatozoa move into the diverticula of the vasa deferentia I. Here, they become attached to central rods (spermatostyles), forming secondary conjugates (spermiozeugmata). The coordinated flagella movement of the conjugates possibly improves sperm velocity. Using super-resolution microscopy, we identified highly condensed reticulate chromatin in the lancet-shaped spermatozoa heads and the mitochondrial derivates of the flagella, likely formed by genomic and mitochondrial DNA, respectively. The results show, for the first time, sperm bundle formation in a Platynini species mainly corresponding to that found in Pterostichini species.
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spelling doaj.art-7fa8416be21b4c4ea73282d35a10bb632022-12-21T20:29:20ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e018049210.1371/journal.pone.0180492Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).Lea F SchubertStephanie KrügerGerald B MoritzVeit SchubertBased on advanced light and electron microscopy, we describe the male reproductive system and sperm development of Limodromus assimilis. The genital tract consists of pairs of uni-follicular testes, spermatic ducts with diverticula regions, seminal vesicles, accessory glands, an unpaired ejaculatory duct and an aedeagus containing an internal sac equipped with sclerotic scales. Based on their morphology, we draw conclusions about their functions. After spermatogenesis within the follicle, the spermatozoa become released from the sperm cysts. The single spermatozoa move into the diverticula of the vasa deferentia I. Here, they become attached to central rods (spermatostyles), forming secondary conjugates (spermiozeugmata). The coordinated flagella movement of the conjugates possibly improves sperm velocity. Using super-resolution microscopy, we identified highly condensed reticulate chromatin in the lancet-shaped spermatozoa heads and the mitochondrial derivates of the flagella, likely formed by genomic and mitochondrial DNA, respectively. The results show, for the first time, sperm bundle formation in a Platynini species mainly corresponding to that found in Pterostichini species.http://europepmc.org/articles/PMC5516968?pdf=render
spellingShingle Lea F Schubert
Stephanie Krüger
Gerald B Moritz
Veit Schubert
Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).
PLoS ONE
title Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).
title_full Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).
title_fullStr Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).
title_full_unstemmed Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).
title_short Male reproductive system and spermatogenesis of Limodromus assimilis (Paykull 1790).
title_sort male reproductive system and spermatogenesis of limodromus assimilis paykull 1790
url http://europepmc.org/articles/PMC5516968?pdf=render
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