The major satellite DNA families of the diploid Chenopodium album aggregate species: Arguments for and against the "library hypothesis".

ABSTRACT: Satellite DNA (satDNA) is one of the major fractions of the eukaryotic nuclear genome. Highly variable satDNA is involved in various genome functions, and a clear link between satellites and phenotypes exists in a wide range of organisms. However, little is known about the origin and temporal dynamics of satDNA. The "library hypothesis" indicates that the rapid evolutionary changes experienced by satDNAs are mostly quantitative. Although this hypothesis has received some confirmation, a number of its aspects are still controversial. A recently developed next-generation sequencing (NGS) method allows the determination of the satDNA landscape and could shed light on unresolved issues. Here, we explore low-coverage NGS data to infer satDNA evolution in the phylogenetic context of the diploid

SUBMITTER: Belyayev A 

PROVIDER: S-EPMC7591062 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature