Chromosome distribution of four LTR retrotransposons and 18 S rDNA in coffea eugenioides.

ABSTRACT: Repetitive sequences are recognized for their roles in plant genome organization and function. Mobile elements are notable repeatome sequences due to their intrinsic mutagenic potential, which is related to the origin of adaptive novelties. Understanding the genomic organization and dynamics of the repeatome is fundamental to enlighten their role in plant genome evolution. We aimed to map and assemble the first karyogram for a Coffea species with a closer look at mobile elements. Four LTR-retrotransposons (LTR-RTs) and the 18S rDNA of Coffea eugenioides, a diploid progenitor of the allotetraploid Coffea arabica, were unprecedently mapped in prometaphase/metaphase chromosomes and interphase nuclei. The LTR-RTs included three Ty1/Copia (Bianca, TAR and Tork) and one Ty3/Gypsy (Athila) identi

SUBMITTER: Sattler MC 

PROVIDER: S-EPMC11782641 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature