Genome and transcriptome of Ips nitidus provide insights into high-altitude hypoxia adaptation and symbiosis.

ABSTRACT: Ips nitidus is a well-known conifer pest that has contributed significantly to spruce forest disturbance in the Qinghai-Tibet Plateau and seriously threatens the ecological balance of these areas. We report a chromosome-level genome of I. nitidus determined by PacBio and Hi-C technology. Phylogenetic inference showed that it diverged from the common ancestor of I. typographus ∼2.27 mya. Gene family expansion in I. nitidus was characterized by DNA damage repair and energy metabolism, which may facilitate adaptation to high-altitude hypoxia. Interestingly, differential gene expression analysis revealed upregulated genes associated with high-altitude hypoxia adaptation and downregulated genes associated with detoxification after feeding and tunneling in fungal symb

SUBMITTER: Wang Z 

PROVIDER: S-EPMC10507238 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature