Results 1 to 10 of about 18,439 (295)

Evolutionary Dynamics of Multigene Families in Triportheus (Characiformes, Triportheidae): A Transposon Mediated Mechanism? [PDF]

Frontiers in Marine Science, 2020
Triportheus (Characiformes, Triportheidae) is a freshwater fish genus with 18 valid species. These fishes are widely distributed in the major river drainages of South America, having commercial importance in the fishing market, mainly in the Amazon basin.
Cassia F Yano, Silvia Portela-Bens, Laureana G Rebordinos   +2 more
exaly   +7 more sources

First cytogenetic data on Afrotropical lutefishes (Citharinidae) in the light of karyotype evolution in Characiformes. [PDF]

Comp Cytogenet, 2022
The Afrotropical lutefish family Citharinidae (Citharinoidei, Characiformes) comprises three genera with eight species in total. Although Citharinidae have been studied in terms of taxonomy and systematics, no cytogenetic information was available for ...
Simanovsky SA, Medvedev DA, Tefera F, Golubtsov AS.   +3 more
europepmc   +5 more sources

On a remarkable sexual dimorphic trait in the Characiformes related to the olfactory organ and description of a new miniature species of Tyttobrycon Géry (Characiformes: Characidae)

PLoS ONE, 2019
Among the order Characiformes, secondary sexual dimorphism is commonly associated to the occurrence of bony hooks on fins, shape and length of the dorsal and anal fins, and sexual dichromatism.
Abrahão, Vp
exaly   +3 more sources

Unravelling the genomic features, phylogeny and genetic basis of tooth ontogenesis in Characiformes through analysis of four genomes. [PDF]

DNA Res, 2023
Characiformes is a diverse and evolutionarily significant order of freshwater fish encompassing over 2,300 species. Despite its diversity, our understanding of Characiformes’ evolutionary relationships and adaptive mechanisms is limited due to ...
Yang X, Song Y, Zhang R, Yu M, Guo X, Guo H, Du X, Sun S, Li C, Mao X, Fan G, Liu X.   +11 more
europepmc   +2 more sources

A long-term conserved satellite DNA that remains unexpanded in several genomes of Characiformes fish is actively transcribed

Genome Biology and Evolution, 2021
Eukaryotic genomes contain large amounts of repetitive DNA sequences, such as tandemly repeated satellite DNAs (satDNAs). These sequences are highly dynamic and tend to be genus- or species-specific due to their particular evolutionary pathways, although
Rodrigo Milan Calegari, Francisco J Ruiz-Ruano, Silvana Melo   +2 more
exaly   +2 more sources

The Satellite DNA Catalogues of Two Serrasalmidae (Teleostei, Characiformes): Conservation of General satDNA Features over 30 Million Years. [PDF]

Genes (Basel), 2022
Satellite DNAs (satDNAs) are tandemly repeated sequences that are usually located on the heterochromatin, and the entire collection of satDNAs within a genome is called satellitome.
Goes CAG, Dos Santos N, Rodrigues PHM, Stornioli JHF, Silva ABD, Dos Santos RZ, Vidal JAD, Silva DMZA, Artoni RF, Foresti F, Hashimoto DT, Porto-Foresti F, Utsunomia R.   +12 more
europepmc   +2 more sources

External Morphology of Leporinus oliveirai (Characiformes: Anostomidae) During Early Life Stages. [PDF]

J Morphol
Herein, we describe the early development of Leporinus oliveirai, a recently described species, documenting its external morphology with photographs and illustrations. The ontogeny of L. oliveirai is compared with other anostomids and developmental patterns are described for the family.
Ito ISB, Boaretto MP, Venturieri M, Bialetzki A, Birindelli JLO.   +4 more
europepmc   +2 more sources

A new species of Characidium (Characiformes: Crenuchidae) from the Iguaçu National Park, Rio Iguaçu basin, Paraná, Brazil. [PDF]

J Fish Biol
Abstract A new species of Characidium is described from the Iguaçu National Park, Brazil. The new species can be diagnosed from the congeners by the absence of conspicuous vertical bars, blotches and spots along the sides of the body, the presence of a scaled isthmus and adipose fin, a series of scales below lateral line and the presence of a thin dark
Stabile BHM, Dos Reis RB, de Oliveira AV, da Graça WJ.   +3 more
europepmc   +2 more sources

The cephalic lateral-line system of Characiformes (Teleostei: Ostariophysi): anatomy and phylogenetic implications

Zoological Journal of the Linnean Society, 2020
The lateral-line system has been traditionally recognized as an important source of phylogenetic information for different groups of fishes. Although extensively studied in Siluriformes and Cypriniformes, the lateral-line system of Characiformes remained
Alessio Datovo
exaly   +2 more sources

Complete Mitochondrial Genomes of Nannostomus Pencilfish: Genome Characterization and Phylogenetic Analysis. [PDF]

Animals (Basel)
Although the pencilfish is a globally popular economic fish in the aquarium market, its taxonomic classification could be further refined. In order to understand the taxonomy of species of the genus Nannostomus (Characiformes, Lebiasinidae) and their ...
Xu W, Tai J, He K, Xu T, Zhang G, Xu B, Liu H.   +6 more
europepmc   +2 more sources