Abstract
The mitochondrial genome of C. laorentou was sequenced using Illumina in this study. The length of the circular mitochondrial genome is 56,088 bp, with a GC content of 30.26%. It encodes 44 genes, including 14 core protein coding genes (PCGs), 26 tRNA genes, 2 rRNA genes, 1 rps3 gene, and 1 free open reading frame (ORF). A phylogenetic tree was constructed based on a joint dataset of 14 mitochondrial core PCGs, which indicate that C. laorentou has the closest genetic relationship with Infundibulycybe hongyinpan and Leucopaxillus giganteus. This study provides the first mitogenome resource for the genus Catathelasma, offering crucial molecular data for its taxonomic placement and enriching fungal mitochondrial genome databases.