Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)

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Reproductive anatomy, including sperm storage structures and sperm transfer, is an important feature used to analyze phylogenetic relationships among taxa. We describe the male reproductive anatomy, seminal fluid production and packaging of spermatozoa in the vas deferens of primitive crabs. In all...

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Autores principales: Garcia Bento, M.A., López Greco, L.S., Zara, F.J.
Formato: JOUR
Materias:
anatomy
Hypoconcha
male reproductive system
spermatheca
ultrastructure
animal
Brachyura
male
physiology
sperm
spermatozoon
Animals
Male
Semen
Spermatozoa
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09442006_v132_n_p17_GarciaBento
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09442006_v132_n_p17_GarciaBento
record_format dspace
spelling todo:paper_09442006_v132_n_p17_GarciaBento2023-10-03T15:49:11Z Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata) Garcia Bento, M.A. López Greco, L.S. Zara, F.J. anatomy Hypoconcha male reproductive system spermatheca ultrastructure animal Brachyura male physiology sperm spermatozoon Animals Brachyura Male Semen Spermatozoa Reproductive anatomy, including sperm storage structures and sperm transfer, is an important feature used to analyze phylogenetic relationships among taxa. We describe the male reproductive anatomy, seminal fluid production and packaging of spermatozoa in the vas deferens of primitive crabs. In all species of Dromiidae, the testes were tubular type and the vas deferens is a tube with a simple epithelium. The spermatozoa are in a central mass immersed in type I secretion, forming a large spermatic cord. In Moreiradromia antillensis and Dromia erythropus the spermatic cord is surrounded by a more complex secretion layer composed by protein granules and polysaccharides that seem to be responsible to form the sperm plaque which was absent in Hypoconcha. The sperm plaque was found in all Dromiinae species, which may result from the mating and probably act as a barrier to subsequent copulations. These patterns of elongated coenospermic spermatophore found here are unique and different from the spermatophores of all true crabs and may be considered a plesiomorphic state to spermatophoric structure in Brachyura. Our results show a novel type of spermatozoa packaging and new insights into how sperm might be transferred in Podotremata. © 2018 Elsevier GmbH JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09442006_v132_n_p17_GarciaBento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic anatomy
Hypoconcha
male reproductive system
spermatheca
ultrastructure
animal
Brachyura
male
physiology
sperm
spermatozoon
Animals
Brachyura
Male
Semen
Spermatozoa
spellingShingle anatomy
Hypoconcha
male reproductive system
spermatheca
ultrastructure
animal
Brachyura
male
physiology
sperm
spermatozoon
Animals
Brachyura
Male
Semen
Spermatozoa
Garcia Bento, M.A.
López Greco, L.S.
Zara, F.J.
Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
topic_facet anatomy
Hypoconcha
male reproductive system
spermatheca
ultrastructure
animal
Brachyura
male
physiology
sperm
spermatozoon
Animals
Brachyura
Male
Semen
Spermatozoa
description Reproductive anatomy, including sperm storage structures and sperm transfer, is an important feature used to analyze phylogenetic relationships among taxa. We describe the male reproductive anatomy, seminal fluid production and packaging of spermatozoa in the vas deferens of primitive crabs. In all species of Dromiidae, the testes were tubular type and the vas deferens is a tube with a simple epithelium. The spermatozoa are in a central mass immersed in type I secretion, forming a large spermatic cord. In Moreiradromia antillensis and Dromia erythropus the spermatic cord is surrounded by a more complex secretion layer composed by protein granules and polysaccharides that seem to be responsible to form the sperm plaque which was absent in Hypoconcha. The sperm plaque was found in all Dromiinae species, which may result from the mating and probably act as a barrier to subsequent copulations. These patterns of elongated coenospermic spermatophore found here are unique and different from the spermatophores of all true crabs and may be considered a plesiomorphic state to spermatophoric structure in Brachyura. Our results show a novel type of spermatozoa packaging and new insights into how sperm might be transferred in Podotremata. © 2018 Elsevier GmbH
format JOUR
author Garcia Bento, M.A.
López Greco, L.S.
Zara, F.J.
author_facet Garcia Bento, M.A.
López Greco, L.S.
Zara, F.J.
author_sort Garcia Bento, M.A.
title Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
title_short Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
title_full Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
title_fullStr Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
title_full_unstemmed Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
title_sort seminal fluid production and sperm packaging in dromiid crabs (brachyura, podotremata)
url http://hdl.handle.net/20.500.12110/paper_09442006_v132_n_p17_GarciaBento
work_keys_str_mv AT garciabentoma seminalfluidproductionandspermpackagingindromiidcrabsbrachyurapodotremata
AT lopezgrecols seminalfluidproductionandspermpackagingindromiidcrabsbrachyurapodotremata
AT zarafj seminalfluidproductionandspermpackagingindromiidcrabsbrachyurapodotremata
_version_ 1807323420320333824

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