AUTHOR=Cross Ismael , Rodríguez María E. , Portela-Bens Silvia , Merlo Manuel A. , Gálvez-Salido Aaron , Navajas-Pérez Rafael , Rebordinos Laureana TITLE=The genomic study of repetitive elements in Solea senegalensis reveals multiple impacts of transposable elements in the evolution and architecture of Pleuronectiformes chromosomes JOURNAL=Frontiers in Marine Science VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2024.1359531 DOI=10.3389/fmars.2024.1359531 ISSN=2296-7745 ABSTRACT=
Pleuronectiformes are flatfishes with high commercial value and a prominent example of successful marine adaptation through chromosomal evolution. Hence, the aim of this study was to analyze the 14 relative abundance of repetitive elements (satellite DNA and transposable elements (TE)) in the 15 genome of 10 fish species (8 flatfish) delving into the study of the species of special relevance, 16 Senegalese sole, Solea senegalensis. The results showed differences in the abundance of repetitive elements, with S. senegalensis exhibiting the highest frequency and coverage of these elements reaching the 40% of the genome and not at random distribution. It is noteworthy the presence of relevant peaks of Helitrons in centromeric/pericentromeric positions mainly in the bi-armed chromosomes 1, 2, 4, 6, 7, and 9. The position of the centromeres of this species determined through the genomic localization of the family of satellite DNA