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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.)

A comparative ultrastructural analysis of spermatozoa in Pleurodema (Anura, Leptodactylidae, Leiuperinae)

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Cruz, Julio C. [1, 2] ; Ferraro, Daiana P. [3, 4] ; Farias, Alejandro [1] ; Santos, Julio S. [5] ; Recco-Pimentel, Shirlei M. [5] ; Faivovich, Julian [3] ; Hermida, Gladys N. [1]
Total Authors: 7
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Biodiversidad & Biol Expt, Lab Biol Anfibios, Histol Anim, 4 Piso, Pab 2, Ave Int Guiraldes 2620, Ciudad Univ, Buenos Aires, DF - Argentina
[2] Univ Salta, Inst Bio & Geociencias IBIGEO CONICET, Salta - Argentina
[3] Museo Argentino Ciencias Nat Bernardino Rivadavia, Div Herpetol, Buenos Aires, DF - Argentina
[4] Inst Nacl Limnol INALI CONICET, Santa Fe - Argentina
[5] Univ Estadual Campinas UNICAMP, Inst Biol, Dept Biol Estrutural & Func, Campinas, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of Morphology; v. 277, n. 7, p. 957-977, JUL 2016.
Web of Science Citations: 1

This study describes the spermatozoa of 10 of the 15 species of the Neotropical frog genus Pleurodema through transmission electron microscopy. The diversity of oviposition modes coupled with a recent phylogenetic hypothesis of Pleurodema makes it an interesting group for the study of ultrastructural sperm evolution in relation to fertilization environment and egg-clutch structure. We found that Pleurodema has an unusual variability in sperm morphology. The more variable structures were the acrosomal complex, the midpiece, and the tail. The acrosomal complex has all the structures commonly reported in hyloid frogs but with different degree of development of the subacrosomal cone. Regarding the midpiece, the variability is given by the presence or absence of the mitochondrial collar. Finally, the tail is the most variable structure, ranging from single (only axoneme) to more complex (presence of paraxonemal rod, cytoplasmic sheath, and undulating membrane), with the absence of the typical axial fiber present in hyloid frogs, also shared with some other genera of Leiuperinae. J. Morphol. 277:957-977, 2016. (c) 2016 Wiley Periodicals, Inc. (AU)

FAPESP's process: 12/10000-5 - A multi-disciplinary approach to the study of amphibian diversification
Grantee:Taran Grant
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 13/04076-1 - Comparative study of sperm ultrastructure of frog species of the subfamily Leiuperinae (Amphibia, Anura, Leptodactylidae)
Grantee:Shirlei Maria Recco-Pimentel
Support type: Regular Research Grants
FAPESP's process: 13/50741-7 - Diversity and conservation of Brazilian amphibians
Grantee:Célio Fernando Baptista Haddad
Support type: BIOTA-FAPESP Program - Thematic Grants