Comparative cytogenetics of nine species of Hypoptopomatinae (Teleostei: Siluriformes: Loricariidae): The importance of structural rearrangements in chromosome evolution

Página do item simplificado
dc.contributor.authorFerreira, Daniela Cristina [UNESP]
dc.contributor.authorChiachio, Márcio César [UNESP]
dc.contributor.authorTakako, Adriana Kazue [UNESP]
dc.contributor.authorAndreata, Artur Antonio [UNESP]
dc.contributor.authorForesti, Fausto [UNESP]
dc.contributor.authorOliveira, Claudio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:41Z
dc.date.available2014-05-27T11:21:41Z
dc.date.issued2005-12-01
dc.description.abstractFishes of the subfamily Hypoptopomatinae are very common and found in the lowlands of cis-Andean South America from Venezuela to the north of Argentina. With the main objective of contributing for a better understanding of the importance of chromosome rearrangements in the loricariid evolution, cytogenetic analyses were conducted in nine species of Hypoptopomatinae. The results showed a marked gross karyotypic conservation with the presence of 2n=54 chromosomes in all species analyzed. The main differences were found in the karyotypic formulae level. Most species had a single interstitial Ag-NORs, however terminal Ag-NORs were observed in three species. One species exhibited two Ag-NOR-bearing chromosome pairs. The distribution of C-band positive segments was species specific but chromosome markers were observed among the species analyzed. The gross cytogenetic characteristics observed among the Hypoptopomatinae species are similar to those observed in other primitive Loricariidae species suggesting that small changes, mainly paracentric and pericentric inversion were the main events in the karyotypic evolution of this fish group.en
dc.description.affiliationUniversidade Estadual Paulista Instituto de Biociências Departamento de Morfologia, 18618-000, Botucatu, SP
dc.description.affiliationUnespUniversidade Estadual Paulista Instituto de Biociências Departamento de Morfologia, 18618-000, Botucatu, SP
dc.format.extent387-395
dc.identifierhttp://dx.doi.org/10.1080/00087114.2005.10589478
dc.identifierhttp://www.caryologia.unifi.it/past_volumes/58_4/58_4abst.html
dc.identifier.citationCaryologia, v. 58, n. 4, p. 387-395, 2005.
dc.identifier.doi10.1080/00087114.2005.10589478
dc.identifier.issn0008-7114
dc.identifier.lattes0804793944846367
dc.identifier.scopus2-s2.0-33751275090
dc.identifier.urihttp://hdl.handle.net/11449/68514
dc.identifier.wosWOS:000235607600013
dc.language.isoeng
dc.relation.ispartofCaryologia
dc.relation.ispartofjcr0.608
dc.relation.ispartofsjr0,281
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAg-NORs
dc.subjectC-band
dc.subjectChromosome evolution
dc.subjectFish cytogenetics
dc.subjectKaryotypes
dc.subjectLoricariidae
dc.subjectPisces
dc.subjectSiluriformes
dc.subjectTeleostei
dc.titleComparative cytogenetics of nine species of Hypoptopomatinae (Teleostei: Siluriformes: Loricariidae): The importance of structural rearrangements in chromosome evolutionen
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
unesp.author.lattes0804793944846367
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

Arquivos

Coleções

Artigos - Morfologia - IBB