A Chromosome-Level Genome Assembly and Resequencing Data Reveal Low DNA Methylation and Reduced Diversity in the Solitary Bee Pollinator Osmia cornuta.

ABSTRACT: Bees provide essential pollination services that contribute to ecosystem stability, as well as the sustainability of economic crop yields. Due to concerns over global and local declines, improving our understanding of these ecologically and commercially important species is crucial for determining their capacity to respond and adapt to environmental challenges. The European orchard bee (Osmia cornuta) is a solitary bee of increasing agricultural importance due to its role in the pollination of fruit crops, yet lacks genomic resources. Using cost-effective Nanopore-only long-read sequencing, we report the first genome assembly for O. cornuta, spanning 647.56 Mb across 727 contigs (N50 = 3.94 Mb) at a high level of completeness (99.88% BUSCO complete). In line with the expected number of chr

SUBMITTER: Mollmann JS 

PROVIDER: S-EPMC12780776 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature