Reproductive apparatus of the male giant hermit crab Petrochirus diogenes (Anomura, Diogenidae): morphology and phylogenetic implications

Autor(es)

Buranelli, Raquel C. ^[1] ; Mantelatto, Fernando L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, LBSC, Dept Biol, Fac Philosophy Sci & Letters Ribeirao Preto FFCLR, BR-14040901 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AQUATIC BIOLOGY; v. 16, n. 3, p. 241-251, 2012.
• Citações Web of Science: 3

Resumo

We describe the male reproductive apparatus of the giant hermit crab Petrochirus diogenes, with morphological and biometric analyses of the spermatophore, the gonopore and the ultrastructure of the spermatozoa. Specimens were collected from the southern coast of Sao Paulo, Brazil. Morphological analyses were done using stereoscopic, light, transmission and scanning electron microscopy. The reproductive system of this hermit crab is composed of elongate and lobular testes followed by vasa deferentia that connect to the exterior via gonopores. The gonopores are ovoid and surrounded by setae, and each gonopore is composed of a membranous operculum that forms a depression constituting the gonopore opening. The gonopore constitutes a unique structure among the Diogenidae due to its number of setae. The spermatophores are tripartite, composed of a sperm-containing ampulla, a peduncle and a proximal foot. The spermatozoon has 3 main regions (acrosomal vesicle, nucleus and cytoplasm). The structure of the spermatophore indicates that this species can be considered an exception within Diogenidae with regard to spermatophore morphology and can therefore be used for phylogenetic inferences. (AU)

• Processo FAPESP: 10/11988-9 - Morfologia do sistema reprodutor masculino do ermitão Petrochirus diogenes Linnaeus, 1758 (Decapoda, Anomura, Diogenidae)
• Beneficiário: Raquel Correa Buranelli
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 12/06299-5 - Variabilidade populacional entre espécies de crustáceos decápodes de manguezais: análises morfológicas e moleculares
• Beneficiário: Raquel Correa Buranelli
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 10/50188-8 - Crustáceos decápodes: multidisciplinaridade na caracterização da biodiversidade marinha do estado de São Paulo (taxonomia, espermiotaxonomia, biologia molecular e dinâmica populacional) (Biodiversidade Marinha)
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático