Analysis of pericentromere composition and structure elucidated the history of the Hieracium alpinum L. genome, revealing waves of transposable elements insertions.

ABSTRACT:

Background

The centromere is one of the key regions of the eukaryotic chromosome. While maintaining its function, centromeric DNA may differ among closely related species. Here, we explored the composition and structure of the pericentromeres (a chromosomal region including a functional centromere) of Hieracium alpinum (Asteraceae), a member of one of the most diverse genera in the plant kingdom. Previously, we identified a pericentromere-specific tandem repeat that made it possible to distinguish reads within the Oxford Nanopore library attributed to the pericentromeres, separating them into a discrete subset and allowing comparison of the repeatome composition of this subset with the remaining genome.

Results

We found that the main satellite DNA (satDNA) monomer forms long

SUBMITTER: Belyayev A 

PROVIDER: S-EPMC11566620 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature