Wang Zheng, Liu Ya, Wang Huimin, Roy Amit, Liu Huixiang, Han Fuzhong, Zhang Xingyao, Lu Quan
Key Laboratory of Forest Protection of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China.
Shandong Research Center for Forestry Harmful Biological Control Engineering and Technology, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
iScience. 2023 Aug 30;26(10):107793. doi: 10.1016/j.isci.2023.107793. eCollection 2023 Oct 20.
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 determined by PacBio and Hi-C technology. Phylogenetic inference showed that it diverged from the common ancestor of ∼2.27 mya. Gene family expansion in 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 symbiont -colonized substrates. Our findings provide evidence of the potential adaptability of to conifer host, high-altitude hypoxia and insight into how fungal symbiont assist in this process. This study enhances our understanding of insect adaptation, symbiosis, and pest management.
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