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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.)

IS CLEISTOSPERMY AND COENOSPERMY RELATED TO SPERM TRANSFER? A COMPARATIVE STUDY OF THE MALE REPRODUCTIVE SYSTEM OF PACHYGRAPSUS TRANSVERSUS AND PACHYGRAPSUS GRACILIS (BRACHYURA: GRAPSIDAE)

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Author(s):
Tiseo, Gisele R. [1] ; Mantelatto, Fernando L. [2] ; Zara, Fernando J. [3, 4]
Total Authors: 3
Affiliation:
[1] Univ Estadual Paulista UNESP, BR-11300900 Sao Vicente, SP - Brazil
[2] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto FFCLR, Dept Biol, Lab Bioecol & Crustacean Systemat LBSC, Postgrad P, BR-14040901 Ribeirao Preto, SP - Brazil
[3] Univ Estadual Paulista UNESP, Aquaculture Ctr CAUNESP, Dept Biol Aplicada, Invertebrate Morphol Lab, BR-14884900 Jaboticabal, SP - Brazil
[4] Univ Estadual Paulista UNESP, Inst Estudos Avancados Mar, BR-14884900 Jaboticabal, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Journal of Crustacean Biology; v. 34, n. 6, p. 704-716, NOV 2014.
Web of Science Citations: 6
Abstract

We describe the production of spermatophores and the seminal fluid in Pachygrapsus transversus and P. gracilis. Both species have tubular testes. The vas deferens is divided into anterior (AVD), middle (MVD), and posterior (PVD). The AVD in P transversus is further divided into two portions: proximal without spermatophores and distal filled with coenospermic spermatophores. In P gracilis, the AVD was not divided because spermatophores were in cleistospermia. In both species, the MVD is responsible for producing part of the seminal fluid reactive polysaccharides. The accessory gland opens into the PVD and changes the characteristics of the seminal fluid. The glandular secretion is glycoproteinaceous in P transversus and rich in acidic and neutral polysaccharides in P gracilis. The eggs of P. transversus are larger than those of P. gracilis. The differences in spermatophore structure and the characteristics of seminal fluid seem to indicate physiological differences related to sperm transfer. (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