PMID- 31856256 OWN - NLM STAT- MEDLINE DCOM- 20200401 LR - 20231027 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 14 IP - 12 DP - 2019 TI - Cytogenetics of the small-sized fish, Copeina guttata (Characiformes, Lebiasinidae): Novel insights into the karyotype differentiation of the family. PG - e0226746 LID - 10.1371/journal.pone.0226746 [doi] LID - e0226746 AB - Lebiasinidae is a small fish family composed by miniature to small-sized fishes with few cytogenetic data (most of them limited to descriptions of diploid chromosome numbers), thus preventing any evolutionary comparative studies at the chromosomal level. In the present study, we are providing, the first cytogenetic data for the red spotted tetra, Copeina guttata, including the standard karyotype, C-banding, repetitive DNA mapping by fluorescence in situ hybridization (FISH) and comparative genomic hybridization (CGH), providing chromosomal patterns and novel insights into the karyotype differentiation of the family. Males and females share diploid chromosome number 2n = 42 and karyotype composed of 2 metacentric (m), 4 submetacentric (sm) and 36 subtelocentric to acrocentric (st-a) chromosomes. Blocks of constitutive heterochromatin were observed in the centromeric and interstitial regions of several chromosomes, in addition to a remarkably large distal block, heteromorphic in size, which fully corresponded with the 18S rDNA sites in the fourth chromosomal pair. This overlap was confirmed by 5S/18S rDNA dual-color FISH. On the other hand, 5S rDNA clusters were situated in the long and short arms of the 2nd and 15th pairs, respectively. No sex-linked karyotype differences were revealed by male/female CGH experiments. The genomic probes from other two lebiasinid species, Lebiasina melanoguttata and Pyrrhulina brevis, showed positive hybridization signals only in the NOR region in the genome of C. guttata. We demonstrated that karyotype diversification in lebiasinids was accompanied by a series of structural and numeric chromosome rearrangements of different types, including particularly fusions and fissions. FAU - Toma, Gustavo Akira AU - Toma GA AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. FAU - de Moraes, Renata Luiza Rosa AU - de Moraes RLR AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. FAU - Sassi, Francisco de Menezes Cavalcante AU - Sassi FMC AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. FAU - Bertollo, Luiz Antonio Carlos AU - Bertollo LAC AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. FAU - de Oliveira, Ezequiel Aguiar AU - de Oliveira EA AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. AD - Secretaria de Estado de Educacao de Mato Grosso, Cuiaba, Mato Grosso, Brazil. FAU - Rab, Petr AU - Rab P AD - Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic. FAU - Sember, Alexandr AU - Sember A AD - Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic. FAU - Liehr, Thomas AU - Liehr T AD - Institute of Human Genetics, University Hospital Jena, Jena, Germany. FAU - Hatanaka, Terumi AU - Hatanaka T AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. FAU - Viana, Patrik Ferreira AU - Viana PF AD - Instituto Nacional de Pesquisas da Amazonia, Manaus, Amazonas, Brazil. FAU - Marinho, Manoela Maria Ferreira AU - Marinho MMF AD - Museu de Zoologia da Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil. FAU - Feldberg, Eliana AU - Feldberg E AD - Instituto Nacional de Pesquisas da Amazonia, Manaus, Amazonas, Brazil. FAU - Cioffi, Marcelo de Bello AU - Cioffi MB AUID- ORCID: 0000-0003-4340-1464 AD - Laboratorio de Citogenetica de Peixes, Departamento de Genetica e Evolucao, Universidade Federal de Sao Carlos, Sao Carlos, Sao Paulo, Brazil. AD - Institute of Human Genetics, University Hospital Jena, Jena, Germany. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191219 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (RNA, Ribosomal) SB - IM MH - Animals MH - Characiformes/classification/*genetics MH - Chromosomes/genetics MH - Evolution, Molecular MH - Female MH - *Karyotype MH - Male MH - *Phylogeny MH - RNA, Ribosomal/genetics PMC - PMC6922430 COIS- The authors have declared that no competing interests exist. EDAT- 2019/12/20 06:00 MHDA- 2020/04/02 06:00 PMCR- 2019/12/19 CRDT- 2019/12/20 06:00 PHST- 2019/09/20 00:00 [received] PHST- 2019/12/04 00:00 [accepted] PHST- 2019/12/20 06:00 [entrez] PHST- 2019/12/20 06:00 [pubmed] PHST- 2020/04/02 06:00 [medline] PHST- 2019/12/19 00:00 [pmc-release] AID - PONE-D-19-26565 [pii] AID - 10.1371/journal.pone.0226746 [doi] PST - epublish SO - PLoS One. 2019 Dec 19;14(12):e0226746. doi: 10.1371/journal.pone.0226746. eCollection 2019.