Genes, Vol. 15, Pages 258: Satellitome Analysis in the Southern Lapwing (Vanellus chilensis) Genome: Implications for SatDNA Evolution in Charadriiform Birds

In this study, by integrating cytogenetic and genomic approaches, we assessed the satellite DNA (satDNA) composition of one typical species, Vanellus chilensis, with a highly conserved karyotype. We additionally underlined its role in the evolution, structure, and differentiation process of the present ZW sex chromosome system. Seven distinct satellite DNA families were identified within its genome, accumulating on the centromeres, microchromosomes, and the W chromosome. However, these identified satellite DNA families were not found in two other Charadriiformes members, namely Jacana jacana and Calidris canutus. The hybridization of microsatellite sequences revealed the presence of a few repetitive sequences in V. chilensis, with only two out of sixteen displaying positive hybridization signals. Overall, our results contribute to understanding the genomic organization and atDNA evolution in Charadriiform birds.

Source: Genes - February 19, 2024 Category: Genetics & Stem Cells Authors: Rafael Kretschmer Gustavo A. Toma Geize Aparecida Deon Natalia dos Santos Rodrigo Zeni dos Santos Ricardo Utsunomia Fabio Porto-Foresti Ricardo Jos é Gunski Anal ía Del Valle Garnero Thomas Liehr Edivaldo Herculano Corra de Oliveira Thales Renato Ochoto Tags: Article Source Type: research