Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)

The study of spermatogenesis in Hymenoptera is limited to few taxa due to limitations to access the material in the right stage for analysis. The information available up to now states that the gametogenesis in males involves a modified meiosis, similar to mitosis. This is due to the haplodiploid se...

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Detalles Bibliográficos
Autores principales:	Carabajal Paladino, L., Lo Nostro, F., Papeschi, A., Cladera, J., Bressa, M.J.
Formato:	JOUR
Materias:	abortive division Hymenoptera modified meiosis cells and cell components gametogenesis histology larva parasitoid ploidy sex determination sperm wasp Braconidae Diachasmimorpha longicaudata
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00017272_v98_n1_p38_CarabajalPaladino
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00017272_v98_n1_p38_CarabajalPaladino
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spelling	todo:paper_00017272_v98_n1_p38_CarabajalPaladino2023-10-03T13:51:54Z Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae) Carabajal Paladino, L. Lo Nostro, F. Papeschi, A. Cladera, J. Bressa, M.J. abortive division Hymenoptera modified meiosis cells and cell components gametogenesis histology larva parasitoid ploidy sex determination sperm wasp Braconidae Diachasmimorpha longicaudata Hymenoptera The study of spermatogenesis in Hymenoptera is limited to few taxa due to limitations to access the material in the right stage for analysis. The information available up to now states that the gametogenesis in males involves a modified meiosis, similar to mitosis. This is due to the haplodiploid sex determination system present in the order, where females are diploid and males are haploid. In the present work, we examined the spermatogenesis process in the parasitoid Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae). We performed squash preparations from testes of individuals from the third larval instar until the adult stage. Some cytological traits, such as the presence of a monopolar spindle, were analysed in detail by means of histological semi-thin sections. The spermatogenesis in this species comprises an abortive first division with the formation of an anucleated cytoplasmic bud and a nucleated cell, and an equal second division of the nucleated cell, leading to the generation of two mature spermatozoa. The results presented herein provide more information about the process of spermatogenesis in Hymenoptera, which has not been studied in depth in parasitic species. © 2015 The Royal Swedish Academy of Sciences Fil:Carabajal Paladino, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lo Nostro, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Papeschi, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cladera, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bressa, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00017272_v98_n1_p38_CarabajalPaladino
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	abortive division Hymenoptera modified meiosis cells and cell components gametogenesis histology larva parasitoid ploidy sex determination sperm wasp Braconidae Diachasmimorpha longicaudata Hymenoptera
spellingShingle	abortive division Hymenoptera modified meiosis cells and cell components gametogenesis histology larva parasitoid ploidy sex determination sperm wasp Braconidae Diachasmimorpha longicaudata Hymenoptera Carabajal Paladino, L. Lo Nostro, F. Papeschi, A. Cladera, J. Bressa, M.J. Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
topic_facet	abortive division Hymenoptera modified meiosis cells and cell components gametogenesis histology larva parasitoid ploidy sex determination sperm wasp Braconidae Diachasmimorpha longicaudata Hymenoptera
description	The study of spermatogenesis in Hymenoptera is limited to few taxa due to limitations to access the material in the right stage for analysis. The information available up to now states that the gametogenesis in males involves a modified meiosis, similar to mitosis. This is due to the haplodiploid sex determination system present in the order, where females are diploid and males are haploid. In the present work, we examined the spermatogenesis process in the parasitoid Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae). We performed squash preparations from testes of individuals from the third larval instar until the adult stage. Some cytological traits, such as the presence of a monopolar spindle, were analysed in detail by means of histological semi-thin sections. The spermatogenesis in this species comprises an abortive first division with the formation of an anucleated cytoplasmic bud and a nucleated cell, and an equal second division of the nucleated cell, leading to the generation of two mature spermatozoa. The results presented herein provide more information about the process of spermatogenesis in Hymenoptera, which has not been studied in depth in parasitic species. © 2015 The Royal Swedish Academy of Sciences
format	JOUR
author	Carabajal Paladino, L. Lo Nostro, F. Papeschi, A. Cladera, J. Bressa, M.J.
author_facet	Carabajal Paladino, L. Lo Nostro, F. Papeschi, A. Cladera, J. Bressa, M.J.
author_sort	Carabajal Paladino, L.
title	Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
title_short	Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
title_full	Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
title_fullStr	Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
title_full_unstemmed	Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
title_sort	spermatogenesis in the parasitoid diachasmimorpha longicaudata (hymenoptera: braconidae)
url	http://hdl.handle.net/20.500.12110/paper_00017272_v98_n1_p38_CarabajalPaladino
work_keys_str_mv	AT carabajalpaladinol spermatogenesisintheparasitoiddiachasmimorphalongicaudatahymenopterabraconidae AT lonostrof spermatogenesisintheparasitoiddiachasmimorphalongicaudatahymenopterabraconidae AT papeschia spermatogenesisintheparasitoiddiachasmimorphalongicaudatahymenopterabraconidae AT claderaj spermatogenesisintheparasitoiddiachasmimorphalongicaudatahymenopterabraconidae AT bressamj spermatogenesisintheparasitoiddiachasmimorphalongicaudatahymenopterabraconidae
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Spermatogenesis in the parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae)

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