6 documents found, page 1 of 1
Cytogenetics, genomics and biodiversity of the South American and African Arapa...
Oliveira, Ezequiel Aguiar de; Bertollo, Luiz Antônio Carlos; Ráb, Petr; Ezaz, Tariq Tariq; Yano, Cassia Fernanda; Hatanaka, TerumiOsteoglossiformes represents one of the most ancestral teleost lineages, currently widespread over almost all continents, except for Antarctica. However, data involving advanced molecular cytogenetics or comparative genomics are yet largely limited for this fish group. Therefore, the present investigations focus on the osteoglossiform family Arapaimidae, studying a unique fish model group with advanced molecula...
Centric fusions behind the karyotype evolution of neotropical nannostomus penci...
Sember, Alexandr; Oliveira, Ezequiel Aguiar de; Ráb, Petr; Bertollo, Luiz Antônio Carlos; Freitas, Natália Lourenço de; Viana, Patrik FerreiraLebiasinidae is a Neotropical freshwater family widely distributed throughout South and Central America. Due to their often very small body size, Lebiasinidae species are cytogenetically challenging and hence largely underexplored. However, the available but limited karyotype data already suggested a high interspecific variability in the diploid chromosome number (2n), which is pronounced in the speciose genus ...
Deciphering the evolutionary history of arowana fishes (Teleostei, osteoglossif...
Cioffi, Marcelo de Bello; Ráb, Petr; Ezaz, Tariq Tariq; Bertollo, Luiz Antônio Carlos; Lavoué, Sébastien; Oliveira, Ezequiel Aguiar de; Sember, AlexandrArowanas (Osteoglossinae) are charismatic freshwater fishes with six species and two genera (Osteoglossum and Scleropages) distributed in South America, Asia, and Australia. In an attempt to provide a better assessment of the processes shaping their evolution, we employed a set of cytogenetic and genomic approaches, including i) molecular cytogenetic analyses using C-and CMA3/DAPI staining, repetitive DNA mappi...
Emerging patterns of genome organization in Notopteridae species (Teleostei, Os...
Barby, Felipe Faix; Bertollo, Luiz Ant?nio Carlos; Oliveira, Ezequiel Aguiar de; Yano, Cassia Fernanda; Hatanaka, Terumi; R?b, Petr; Sember, AlexandrTis study was supported by Conselho Nacional de Desenvolvimento Cient?fco e Tecnol?gico - CNPq (Proc. nos 401962/2016-4 and 304992/2015-1), Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo- FAPESP (Proc. No 2016/22196-2) and CAPES/Alexander von Humboldt (Proc. No. 88881.136128/2017-01). Further, by the project EXCELLENCE CZ.02.1.01/0.0/0.0/15_003/0000460 OP RDE and with the institutional support RVO: 679859...
Chromosomes of Asian cyprinid fishes: cytogenetic analysis of two representativ...
Saenjundaeng, Pasakorn; de Bello Cioffi, Marcelo; de Oliveira, Ezequiel Aguiar; Tanomtong, Alongklod; Supiwong, Weerayuth; Phimphan, SumaleeBackground Polyploidy, although still poorly explored, represents an important evolutionary event in several cyprinid clades. Herein, Catlocarpio siamensis and Probarbus jullieni - representatives of the paleotetraploid tribe Probarbini, were characterized both by conventional and molecular cytogenetic methods. Results Alike most other paleotetraploid cyprinids (with 2n = 100), both species studied here shared ...
Estudos evolutivos no gênero Triportheus (Characiformes, Triportheidae) com enf...
Yano, Cassia FernandaCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Triportheus genus (Characiformes, Triportheidae) presents a particular scenario 1 in fishes, with a ZZ/ZW sex chromosomes system for all species until now investigated. The Z chromosome is metacentric and the largest one of the karyotype, remaining morphologically conserved in all species. In contrast, the W chromosome differs in shape and siz...