PMID- 24260671 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20131122 LR - 20211021 IS - 1993-0771 (Print) IS - 1993-078X (Electronic) IS - 1993-0771 (Linking) VI - 6 IP - 3 DP - 2012 TI - Localization of 18S ribosomal genes in suckermouth armoured catfishes Loricariidae (Teleostei, Siluriformes) with discussion on the Ag-NOR evolution. PG - 315-21 LID - 10.3897/CompCytogen.v6i3.2667 [doi] AB - The family Loricariidae with about 690 species divided into six subfamilies, is one of the world's largest fish families. Cytogenetic studies conducted in the family showed that among 90 species analyzed the diploid number ranges from 2n=38 in Ancistrus sp. to 2n=96 in Hemipsilichthys gobio Luetken, 1874. In the present study, fluorescence in situ hybridization (FISH) was employed to determine the chromosomal localization of the 18S rDNA gene in four suckermouth armoured catfishes: Kronichthys lacerta (Nichols, 1919), Pareiorhaphis splendens (Bizerril, 1995), Liposarcus multiradiatus (Hancock, 1828) and Hypostomus prope plecostomus (Linnaeus, 1758). All species analyzed showed one chromosome pair with 18S rDNA sequences, as observed in the previous Ag-NORs analyses. The presence of size and numerical polymorphism was observed and discussed, with proposing a hypothesis of the Ag-NOR evolution in Loricariidae. FAU - Alves, Anderson Luis AU - Alves AL AD - Embrapa Pesca e Aquicultura (CNPASA), Palmas, Tocantins, Brazil Embrapa Pesca e Aquicultura (CNPASA), Palmas, Tocantins, Brazil ; Laboratorio de Citogenetica, Univ Estadual Paulista "Julio de Mesquita Filho" - UNESP, Rio Claro, Sao Paulo State, Brazil. FAU - de Borba, Rafael Splendore AU - de Borba RS FAU - Pozzobon, Allan Pierre Bonetti AU - Pozzobon AP FAU - Oliveira, Claudio AU - Oliveira C FAU - Nirchio, Mauro AU - Nirchio M FAU - Granado, Angel AU - Granado A FAU - Foresti, Fausto AU - Foresti F LA - eng PT - Journal Article DEP - 20120926 PL - Bulgaria TA - Comp Cytogenet JT - Comparative cytogenetics JID - 101503807 PMC - PMC3833798 OTO - NOTNLM OT - Fish cytogenetics OT - Loricariidae OT - fluorescent in situ hybridization EDAT- 2012/01/01 00:00 MHDA- 2012/01/01 00:01 PMCR- 2012/09/26 CRDT- 2013/11/22 06:00 PHST- 2012/01/12 00:00 [received] PHST- 2012/09/11 00:00 [accepted] PHST- 2013/11/22 06:00 [entrez] PHST- 2012/01/01 00:00 [pubmed] PHST- 2012/01/01 00:01 [medline] PHST- 2012/09/26 00:00 [pmc-release] AID - 10.3897/CompCytogen.v6i3.2667 [doi] PST - epublish SO - Comp Cytogenet. 2012 Sep 26;6(3):315-21. doi: 10.3897/CompCytogen.v6i3.2667. eCollection 2012.