MITE Annotation and Landscape in 207 Plant Genomes Reveal Their Evolutionary Dynamics and Functional Roles.

ABSTRACT: Miniature inverted-repeat transposable elements (MITEs) are short, non-autonomous class II transposable elements prevalent in eukaryotic genomes, contributing to various genomic and genic functions in plants. However, research on MITEs mainly targets a few species, limiting a comprehensive understanding and systematic comparison of MITEs in plants. Here, we developed a highly sensitive MITE annotation pipeline with a low false positive rate and applied it to 207 high-quality plant genomes. We found over a 20,000-fold variation in MITE copy numbers among species. The Mutator superfamily accounted for 41.5% of MITEs, whereas the Tc1/Mariner and PIF/Harbinger superfamilies expanded rapidly in monocots, particularly in Poaceae. Insertion time analysis revealed a general pattern of a single amp

SUBMITTER: Gao J 

PROVIDER: S-EPMC12550479 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature