Daniele Aparecida Matoso

TL;DR: Physical mapping of 5S rDNA in 2 species of knifefishes, Gymnotuspantanal and G. paraguensis, was performed using fluorescence in situ hybridization with a 5 S rDNA probe to determine non-transcribed spacer sequences (NTS).

TL;DR: A huge degree of chromosomal and genetic diversity is revealed in B. coracoideus and highly points to the existence of four ESUs in allopatric and sympatric speciation processes.

TL;DR: Data reveal that, although diploid number in both species corroborates the proposed synapomorphy for the tribe, there is a complex karyotype dynamics, reflected in the intense chromosomal polymorphism, resulting from rearrangements involving ribosomal regions (5S and 18S rDNA), which are suggested to be paracentric inversions.

TL;DR: In vitro assay results suggest that trichlorfon tends to be a classic uncompetitive inhibitor of AChE in both the brain and muscle, since Km and Vmax values decrease, while the slope remains unchanged, and all these results show that C. macropomum has low tolerance to this pesticide.

TL;DR: This study investigated the genomic organization of the 18S and 5S rDNA and telomeric sequences in mitotic chromosomes of four species from the basal clade of the Serrasalmidae family, in order to understand the chromosomal evolution in the family.