Exploring the Satellitome of the Pest Aphid Acyrthosiphon pisum (Hemiptera, Aphididae): Insights Into Genome Organization and Intraspecies Evolution.

ABSTRACT: Satellite DNAs (satDNAs), ubiquitous sequences in eukaryotic genomes, play a crucial role in genome organization, function, and evolution. The pea aphid Acyrthosiphon pisum is a major crop pest, and an emerging model for ecological, developmental, and evolutionary studies. This study characterizes the satellitome of the A. pisum to better understand its genomic organization and the evolutionary dynamics of satDNAs at the intraspecies level. The analysis of satDNAs across various host-plant adapted biotypes reveals a general sharing of the satellitome, with significative quantitative differences. We observe the amplification or contraction of specific satDNA families, even in the same biotype, consistent with the fast-evolutionary changes characteristic of these sequences. Rapid differentia

SUBMITTER: Albuquerque L 

PROVIDER: S-EPMC12241859 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature