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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.)

Male reproductive system of the red brocade hermit crab Dardanus insignis (Diogenidae) and its relationship to other family members

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Buranelli, Raquel C. [1] ; Zara, Fernando J. [2, 3] ; Mantelatto, Fernando L. [1, 4]
Total Authors: 3
[1] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto FFCLR, Postgrad Program Comparat Biol, Lab Bioecol & Crustacean Systemat LBSC, Dept Biol, BR-14049 Ribeirao Preto, SP - Brazil
[2] UNESP, FCAV, Dept Appl Biol, Invertebrate Morphol Lab IML, BR-14884900 Jaboticabal, SP - Brazil
[3] UNESP, FCAV, Aquaculture Ctr CAUNESP, BR-14884900 Jaboticabal, SP - Brazil
[4] UNESP, Inst Estudos Avancados Mar IEAMar, Sao Vicente, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ZOOMORPHOLOGY; v. 133, n. 2, p. 127-137, JUN 2014.
Web of Science Citations: 4

The reproductive system of hermit crabs shows species-specific morphology, which can be used in phylogenetic analysis. Here, we describe the male reproductive system of the hermit crab Dardanus insignis, including morphological and biometric analyses of the spermatophore, the gonopore, and sperm ultrastructure. The morphological analyses were based on 15 selected specimens and carried out by means of light and electron microscopy. Our results indicate a reproductive system composed of lobular testes attached to a simple straight vas deferens connected to the exterior via ventral gonopores. The gonopores are ovoid, surrounded by dense serrulate setae, and covered by a membranous operculum. The spermatophores exhibit a tripartite structure, with an elongate ovoid ampulla, a long narrow stalk, and a proximal foot. The spermatozoal ultrastructure shows three main regions: an ovoid-oblong acrosomal vesicle, a nucleus, and cytoplasm with three armlike extensions. Some of these characteristics can also be found in other species of Diogenidae within the genus Dardanus and in members of Coenobitidae, a closely related family. The available information on spermatophore and spermatozoal structure may indicate a closer similarity between the genus Dardanus and the Coenobitidae, compared with other members of Diogenidae. (AU)

FAPESP's process: 09/54931-0 - Improvement and management of biological specimen collections at the Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo
Grantee:Carlos Alberto Garofalo
Support type: Research Infrastructure Program - Biological specimen collections
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: 10/11988-9 - Morphology of male reproductive system of the hermit crab Petrochirus diogenes Linnaeus, 1758 (Decapoda, Anomura, Diogenidae)
Grantee:Raquel Correa Buranelli
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 12/06299-5 - Populational variability among decapod crustacean species from mangroves: morphological and molecular analysis
Grantee:Raquel Correa Buranelli
Support type: Scholarships in Brazil - Doctorate (Direct)