Centromeric Satellite DNA in Flatfish (Order Pleuronectiformes) and Its Relation to Speciation Processes
Metadatos
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Robles Rodríguez, Francisca; Herrán Moreno, Roberto De La; Navajas Pérez, Rafael; Cano-Roldán, Belén; Sola-Campoy, Pedro Juan; García Zea, Jerson Alexander; Ruiz Rejón, CarmeloMateria
Centromeric satellite DNA Flatfishes Molecular evolution
Fecha
2017Referencia bibliográfica
Rodríguez FR, de la Herrán R, Navajas-Pérez R, Cano-Roldán B, Sola-Campoy PJ, García-Zea JA, Rejón CR. Centromeric Satellite DNA in Flatfish (Order Pleuronectiformes) and Its Relation to Speciation Processes. J Hered. 2017 Mar 1;108(2):217-222.
Patrocinador
Departamento de Genética. Grupo BIO200. Facultad de Ciencias. Universidad de GranadaResumen
Two new centromeric satellite DNAs in flatfish (Order Pleuronectiformes) have been characterized.
The SacI-family from Hippoglossus hippoglossus, restricted to this species, had a monomeric size
of 334 base pair (bp) and was located in most of the centromeres of its karyotype. The PvuII-family,
with a monomeric size of 177 bp, was initially isolated from the genome of Solea senegalensis,
and fluorescent in situ hybridization (FISH) localized the repeat to centromeres of most of the
chromosomes. This family could only be amplified in 2 other species of the genus Solea (Solea
solea and Solea lascaris). Molecular features and chromosomal location indicated a possible
structural and/or functional role of these sequence repeats. The presence of species-specific
satellite-DNA families in the centromeres and their possible role in the speciation processes in this
group of fishes is discussed.