The biflagellate spermatozoa of Colostethus marchesianus (Melin, 1941) (Anura, Dendrobatidae) from the type locality and of Colostethus sp. (aff. Marchesianus.) from a different locality: A scanning and transmission electron microscopy analysis

Veiga-Menoncello, Ana Cristina Prado; Aguiar, Odair; Lima, Albertina P.; Recco‐Pimentel, Shirlei Maria

doi:10.1016/j.jcz.2006.12.001

Cited by 7 publications

(6 citation statements)

References 24 publications

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“… Schematic representation of different tail morphotypes observed in this study and their positions in relation to the clades/chromosomal groups of Pseudopaludicola (Reproduced with permission from Veiga‐Menoncello et al, Zool Scr, , 43, 261–272). (1) The data on the spermatozoa of P. falcipes were obtained from Amaral et al ().…”

Section: Resultsmentioning

confidence: 99%

“…In recent years, the description of the ultrastructure of the spermatozoa of some anuran groups has contributed to the understanding of the relationships among taxa of a given family (Scheltinga, ; Scheltinga and Jamieson, ), as well as the intergeneric and intrageneric relationship in Pseudis (Garda et al, ), Crossodactylus , Megaelosia , and Hylodes (Aguiar‐Junior et al, ), Colostethus (Veiga‐Menoncello et al, ), Dendrobates (Lipke et al, ), Leptodactylus , and Lithodytes (Salles, ). Scheltinga and Jamieson () concluded that the definition of phylogenetic relationships based exclusively on ultrastructural characters of spermatozoa would likely result in numerous homoplasies.…”

Section: Discussionmentioning

confidence: 99%

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Ultrastructure variation in the spermatozoa ofPseudopaludicolafrogs (Amphibia, Anura, Leptodactylidae), with brief comments on its phylogenetic relevance

Santos

Introíni

Veiga-Menoncello

et al. 2015

Journal of Morphology

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The taxonomic history of the small frogs of the genus Pseudopaludicola from South America has been controversial. Phylogenetic inferences based on molecular data have identified four Pseudopaludicola clades, correlating with the known variation in karyotypes (2n = 22, 20, 18, and 16). In this study, the ultrastructure of the spermatozoa was analyzed in 12 species of the Pseudopaludicola, with the aim of describing their morphology and identifying characters that may contribute to a better understanding of the phylogenetic relationships. The spermatozoa presented marked differences in tail structures. The tails of the spermatozoa of the species with 2n = 22 chromosomes (Pseudopaludicola sp. 1 [P. pusilla group], Pseudopaludicola falcipes, P. mineira, and Pseudopaludicola saltica), as well as Pseudopaludicola ameghini and Pseudopaludicola ternetzi (2n=20), have juxta-axonemal fibers, undulating membranes and axial fibers. In contrast, in the species with 2n = 18 (P. facureae, P. giarettai, Pseudopaludicola canga, P. atragula, and Pseudopaludicola sp. 2) and 2n = 16 (Pseudopaludicola mystacalis), there are no evident axial or juxta-axonemal fibers, but a paraxonemal rod with a thick undulating membrane, which is shorter than that found among Pseudopaludicola species. The ultrastructural morphological differences observed in the spermatozoa of these species may be phylogenetically informative, given that they coincide with the consensus phylogeny of the group and appear to represent a progressive simplification of the spermatozoon.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ultrastructure variation in the spermatozoa ofPseudopaludicolafrogs (Amphibia, Anura, Leptodactylidae), with brief comments on its phylogenetic relevance

Santos

Introíni

Veiga-Menoncello

et al. 2015

Journal of Morphology

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“…2003 ; Lourenço et al ., 2006 ; Siqueira et al ., 2008 ), and data from sperm ultrastructure have been used as additional characters in systematic studies (see Jamieson and Leung, 1991 ; Garda et al ., 2002 , Aguiar-Jr et al ., 2006 ; Veiga-Menoncello et al . 2006 , 2007 ).…”

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confidence: 99%

Cytogenetics and sperm ultrastructure of Atelopus spumarius (Anura, Bufonidae) from the Brazilian Amazon

et al. 2013

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The current taxonomy of most Atelopus species is based on morphological and color data only. Recent studies suggest that A. spumarius may represent a species complex assigned under the same name. Karyotypic data and description of sperm ultrastructure for 13 specimens of A. spumarius are presented here for the first time. A chromosomal analysis revealed 2n = 22 chromosomes, with centromeric heterochromatin in all pairs and a nucleolar organizer region (NOR) on the telomere of pair 7. The sperm was of the bufonoid type, presenting a filiform nucleus covered by an acrosomal complex and a mitochondrial collar in the neck region. The tail was composed of an axoneme, an undulating membrane and an axial rod. A karyotype analysis of A. spumarius showed the same chromosome number and similar chromosomal morphology as described for congeneric species, with slight differences probably resulting from pericentric inversions. The NOR location (on pair 7) was the same as that observed for species belonging to the genus Rhinella. The spermatological findings indicate a close relationship between Atelopus and the bufonoid lineage. The present data are useful for reference in future studies to determine whether more than one species are assigned to A. spumarius.

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“…The acrosome complex of the spermatozoa in most species of Pleurodema is formed by a subacrosomal cone below the acrosome vesicle, similarly to that observed in most studied hyloid frogs. This configuration was observed in Batrachylidae (Pugin and Garrido, ), Bufonidae (Burgos and Fawcett, ; Rastogi et al, ; Lee and Jamieson, ; Meyer et al, ; Báo et al, ), Calyptocephalellidae (Pugin and Garrido, ), Dendrobatidae (Garda et al, ; Aguiar‐Jr et al, 2003, 2004; Veiga‐Menoncello et al, ), Hylidae (Rastogi et al, ; Lee and Kwon, ; Lee and Jamieson, ; Costa et al, ), other Leptodactylidae (Amaral et al, ; Scheltinga, ; Zieri et al, ; Santos et al, ), Microhylidae (Scheltinga et al, ), Myobatrachidae (Lee and Jamieson, ), and Rhinodermatidae (Pugin and Garrido, ). The subacrosomal cone was also observed in Ascaphidae (Jamieson et al, ), Leiopelmatidae (Scheltinga et al, ), Pelodytidae (Pugin‐Ríos, ), Megophryidae, and Pelobatidae (Scheltinga, ).…”

Section: Discussionmentioning

confidence: 87%

“…A mitochondrial collar present at the anterior portion of the tail (character 2: 1) is shared by Batrachylidae, Bufonidae, Centrolenidae, Dendrobatidae, Hylidae, Leptodactylidae, Microhylidae, and Rhinodermatidae (Pugin‐Ríos, ; Pugin and Garrido, ; Jamieson et al, ; Lee and Jamieson, ; Meyer et al, ; Garda et al, ; Scheltinga et al, ; Aguiar‐Jr et al, 2003, 2004; Veiga‐Menoncello et al, ; Santos et al, ), with the exception of a few species. The mitochondrial collar is absent in urodeles, gymnophionans, most of the basal anuran clades, the anomocoelan families, Ptychadenidae and the victoranuran families examined, including Ranidae, and Dicroglossidae, Mantellidae, Phrynobatrachidae, and Rhacophoridae (Poirier and Spink, ; Pugin‐Ríos, ; Mainoya, ; Mizuhira et al, ; Scheltinga ; Muto and Kubota, ).…”

Section: Discussionmentioning

confidence: 99%

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

Cruz

Ferraro

Farías

et al. 2016

Journal of Morphology

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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. © 2016 Wiley Periodicals, Inc.

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The biflagellate spermatozoa of Colostethus marchesianus (Melin, 1941) (Anura, Dendrobatidae) from the type locality and of Colostethus sp. (aff. Marchesianus.) from a different locality: A scanning and transmission electron microscopy analysis

Cited by 7 publications

References 24 publications

Ultrastructure variation in the spermatozoa ofPseudopaludicolafrogs (Amphibia, Anura, Leptodactylidae), with brief comments on its phylogenetic relevance

Ultrastructure variation in the spermatozoa ofPseudopaludicolafrogs (Amphibia, Anura, Leptodactylidae), with brief comments on its phylogenetic relevance

Cytogenetics and sperm ultrastructure of Atelopus spumarius (Anura, Bufonidae) from the Brazilian Amazon

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

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