dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorCEPTA ICMBio
dc.date.accessioned2014-05-20T13:52:11Z
dc.date.available2014-05-20T13:52:11Z
dc.date.created2014-05-20T13:52:11Z
dc.date.issued2009-09-01
dc.identifierCytologia. Tokyo: Univ Tokyo Cytologia, v. 74, n. 3, p. 281-287, 2009.
dc.identifier0011-4545
dc.identifierhttp://hdl.handle.net/11449/18642
dc.identifier10.1508/cytologia.74.281
dc.identifierWOS:000275799000007
dc.identifier3815338174165832
dc.description.abstractWithin the genus Prochilodus, the species Prochilodus lineatus is certainly the most studied one from a cytogenetic point of view. In this study, a cytogenetic characterization of specimens of P. lineatus from Mogi-Guacu River was performed in the period from 2003 to 2007, through utilization of cytogenetic markers, such as Giemsa, Ag-NOR, C-banding and cytogenetical-molecular markers (FISH) to detect both 5S and 18S ribosomal genes. All analyzed individuals presented 2n=54 meta/submetacentric chromosomes, besides bearing up to 7 supernumerary Microchromosomes. Polymorphic NORs were detected on a single chromosomal pair. The constitutive heterochromatin was distributed at centromeric region of all chromosomes in the A complement, while the microchromosomes were totally heterochromatic. A syntenic distribution of 5S and 18S ribosomal genes was detected, comprising the NOR-bearing chromosomal pair. No additional ribosomal clusters in other chromosomes were observed. Although the karyotype features are commonly conserved within the genus Prochilodus, the few differences on the distribution of both ribosomal genes and heterochromatin when compared to specimens of P lineatus from other localities can be associated to the evolutionary changes that these repetitive sequences have undergone through the years.
dc.languageeng
dc.publisherUniv Tokyo Cytologia
dc.relationCytologia
dc.relation0.481
dc.relation0,233
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectProchilodus lineatus
dc.subjectCytogenetic markers
dc.subjectMogi-Guacu
dc.subjectNucleolar organizer regions
dc.titleCytogenetic Markers in Wild Population of Curimbata (Prochilodus lineatus) from Mogi-Guacu River
dc.typeArtículos de revistas


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