Cytogenetics And Sperm Ultrastructure Of Atelopus Spumarius (anura, Bufonidae) From The Brazilian Amazon.

dc.creatorSiqueira, Sérgio
dc.creatorJunior, Odair Aguiar
dc.creatorLima, Albertina Pimentel
dc.creatorRecco-Pimentel, Shirlei Maria
dc.date2013-Dec
dc.date2015-11-27T13:32:26Z
dc.date2015-11-27T13:32:26Z
dc.date.accessioned2018-03-29T01:19:00Z
dc.date.available2018-03-29T01:19:00Z
dc.identifierGenetics And Molecular Biology. v. 36, n. 4, p. 528-32, 2013-Dec.
dc.identifier1415-4757
dc.identifier10.1590/S1415-47572013005000038
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/24385856
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/200943
dc.identifier24385856
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1301176
dc.descriptionThe 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.
dc.description36
dc.description528-32
dc.languageeng
dc.relationGenetics And Molecular Biology
dc.relationGenet. Mol. Biol.
dc.rightsaberto
dc.rights
dc.sourcePubMed
dc.subjectAg-nor
dc.subjectAtelopus Spumarius
dc.subjectC-band
dc.subjectChromosome
dc.subjectSperm Ultrastructure
dc.titleCytogenetics And Sperm Ultrastructure Of Atelopus Spumarius (anura, Bufonidae) From The Brazilian Amazon.
dc.typeArtículos de revistas


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