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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Garcia Bento, Maria Alice [1, 2] ; Lopez Greco, Laura S. [3] ; Zara, Fernando Jose [1, 2, 4]
Total Authors: 3
[1] Univ Estadual Paulista, UNESP, FCAV, Lab Morfol Invertebrados IML, Dept Biol Aplicada A, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP - Brazil
[2] Univ Estadual Paulista, UNESP, Ctr Aquiculutra, CAUNESP, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP - Brazil
[3] Univ Buenos Aires, CONICET, IBBEA, Lab Biol Reprod & Crecimiento Crustaceos De, Fac Ciencias Exactas & Nat, Dept Biodiversidad & B, C1428EGA, Buenos Aires, DF - Argentina
[4] Univ Estadual Paulista, UNESP, IB, Ave 24 A, 1515, BR-13506900 Rio Claro, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ZOOLOGY; v. 132, p. 17-30, FEB 2019.
Web of Science Citations: 2

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. (AU)

FAPESP's process: 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics)
Grantee:Fernando Luis Medina Mantelatto
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 14/21294-5 - Reproductive system in Dromiidae: histochemical and ultrastructural characterization of spermatozoa and seminal fluid in Hypoconcha parasitica (Linnaeus, 1763)
Grantee:Maria Alice Garcia Bento
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 16/10394-4 - Male reproductive system and espermiotaxonomy in Dromiidae: there is only one pattern of seminal fluid production, packaging sperm and sperm transfer in crabs?
Grantee:Maria Alice Garcia Bento
Support type: Scholarships in Brazil - Master