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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.typeArtigo de periódicopt_BR
dc.titleComparative Analysis Of The Chromosomal Positions Of Rdna Genes In Species Of The Tripunctata Radiation Of Drosophila.pt_BR
dc.contributor.authorBrianti, M Tpt_BR
dc.contributor.authorAnanina, Gpt_BR
dc.contributor.authorRecco-Pimentel, S Mpt_BR
dc.contributor.authorKlaczko, L Bpt_BR
unicamp.authorM T Brianti, Departamento de Genética e Evolução, Programa de Pós Graduação em Genética e Biologia Molecular, Universidade Estadual de Campinas, UNICAMP, São Paulo, Brazil.pt_BR
unicamp.author.externalG Ananina,pt
unicamp.author.externalS M Recco-Pimentel,pt
unicamp.author.externalL B Klaczko,pt
dc.subjectAnimalspt_BR
dc.subjectChromosomespt_BR
dc.subjectDna, Ribosomalpt_BR
dc.subjectDrosophilapt_BR
dc.subjectMitosispt_BR
dc.subjectPhylogenypt_BR
dc.description.abstractThe location of rDNA on chromosomes has been found to be highly variable in different groups of insect families of various orders. Yet, in other insect families the rDNA position is relatively constant. This contrast so far has received limited attention. We investigated the rDNA position on mitotic chromosomes in 18 species of Drosophila, 16 of which are from the tripunctata radiation, subgenus Drosophila, through fluorescent in situ hybridization (FISH). All species showed fluorescent signals only on the sex chromosomes. On the X chromosome a single fluorescent mark, but with variable locations, was found. On the Y, we observed variation both in location and in number of fluorescent marks (from 1 to 5). This constancy of chromosome location, in contrast to the great variability found in other groups, is consistent with the work carried out in other species of Drosophila. This suggests that the presence of a nucleolus organizer region (NOR) on each sex chromosome is probably an ancestral condition in the genus. Moreover, this difference in the variation of rDNA position among groups points out an interesting evolution question, which deserves further study.en
dc.relation.ispartofCytogenetic And Genome Researchpt_BR
dc.relation.ispartofabbreviationCytogenet. Genome Res.pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationCytogenetic And Genome Research. v. 125, n. 2, p. 149-57, 2009.pt_BR
dc.language.isoengpt_BR
dc.description.volume125pt_BR
dc.description.firstpage149-57pt_BR
dc.rightsfechadopt_BR
dc.rights.holder(c) 2009 S. Karger AG, Basel.pt_BR
dc.sourcePubMedpt_BR
dc.identifier.issn1424-859Xpt_BR
dc.identifier.doi10.1159/000227840pt_BR
dc.identifier.urlhttp://www.ncbi.nlm.nih.gov/pubmed/19729919pt_BR
dc.date.available2015-11-27T13:15:31Z-
dc.date.accessioned2015-11-27T13:15:31Z-
dc.description.provenanceMade available in DSpace on 2015-11-27T13:15:31Z (GMT). No. of bitstreams: 1 pmed_19729919.pdf: 263553 bytes, checksum: 14a4dc758e2cbbbc4a1231472ada7906 (MD5) Previous issue date: 2009en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/198460-
dc.identifier.idPubmed19729919pt_BR
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