7 documents found, page 1 of 1

Cytogenetics of the small-sized fish, Copeina guttata (Characiformes, Lebiasini...

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, rep...

Cytogenetics, genomics and biodiversity of the South American and African Arapa...

Osteoglossiformes 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...

Comparative Cytogenetics and Neo-Y Formation in Small-Sized Fish Species of the...

Centric fusions behind the karyotype evolution of neotropical nannostomus penci...

Lebiasinidae 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...

Arowanas (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...

Tis 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...

Background 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 ...