Karyotype and LTR-RTs analysis provide insights into oak genomic evolution.

ABSTRACT:

Background

Whole-genome duplication and long terminal repeat retrotransposons (LTR-RTs) amplification in organisms are essential factors that affect speciation, local adaptation, and diversification of organisms. Understanding the karyotype projection and LTR-RTs amplification could contribute to untangling evolutionary history. This study compared the karyotype and LTR-RTs evolution in the genomes of eight oaks, a dominant lineage in Northern Hemisphere forests.

Results

Karyotype projections showed that chromosomal evolution was relatively conservative in oaks, especially on chromosomes 1 and 7. Modern oak chromosomes formed through multiple fusions, fissions, and rearrangements after an ancestral triplication event. Species-specific chromosomal rearrangements revealed frag

SUBMITTER: Cao RB 

PROVIDER: S-EPMC10988972 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature