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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 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


Documento: Artículo
Título:Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
Autor:Garcia Bento, M.A.; López Greco, L.S.; Zara, F.J.
Filiación:Universidade Estadual Paulista (UNESP), FCAV, Laboratório de Morfologia de Invertebrados (IML), Departamento de Biologia Aplicada à Agropecuária e Centro de Aquicultura da Unesp (CAUNESP), Via de Acesso Prof. Paulo Donato Castellane, s/n, Jaboticabal, São Paulo 14884-900, Brazil
Universidad de Buenos Aires, CONICET, Instituto de Biodiversidad y Biología Experimental y Aplicada (IBBEA), Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Laboratorio de Biología de la Reproducción y el Crecimiento de Crustáceos Decápodos, Buenos Aires, C1428EGA, Argentina
Universidade Estadual Paulista (UNESP), IB, Avenida 24 A, 1515, Rio Claro, São Paulo 13506-900, Brazil
Palabras clave:anatomy; Hypoconcha; male reproductive system; spermatheca; ultrastructure; animal; Brachyura; male; physiology; sperm; spermatozoon; Animals; Brachyura; Male; Semen; Spermatozoa
Página de inicio:17
Página de fin:30
Título revista:Zoology
Título revista abreviado:Zoology


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---------- APA ----------
Garcia Bento, M.A., López Greco, L.S. & Zara, F.J. (2019) . Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata). Zoology, 132, 17-30.
---------- CHICAGO ----------
Garcia Bento, M.A., López Greco, L.S., Zara, F.J. "Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)" . Zoology 132 (2019) : 17-30.
---------- MLA ----------
Garcia Bento, M.A., López Greco, L.S., Zara, F.J. "Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)" . Zoology, vol. 132, 2019, pp. 17-30.
---------- VANCOUVER ----------
Garcia Bento, M.A., López Greco, L.S., Zara, F.J. Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata). Zoology. 2019;132:17-30.