Sequencing and analysis of complete mitochondrial genome of Beauveria bassiana, an important entomopathogenic fungus

• 1、Guangdong Forestry Research Institute

Abstract：To exactly understand the extranuclear variation of B. bassiana, the whole sequence was sequenced in the present study. A circular molecule of 29961bp was obtained with an overall A+T content at 72.75%，which was registered in EMBL with the accession number EU371503. It contained the genes encoding for the large and small subunits of ribosome (rnl and rns), 25 genes encoding tRNA and 14 protein encoding genes involved in the oxidative phosphorylation and ATP synthesis, namely genes encoding for three ATP synthase subunits 6, 8 and 9 (atp6, atp8, atp9), three cytochrome oxidase subunits I, II, III (cox1, cox2, cox3), apocytochrome b (cob), and 7 NADH dehydrogenase subunits 1-6 and 4L (nad1, nad2, nad3, nad4, nad5, nad6, nad4L). All genes encoded in the mtDNA genome of B. bassiana were from the same strand and most of the tRNAs arranged in three conserve trn gene clusters which is similar to other Sordariomycetes.. The sequence is higher similar to Lecanicillium muscarium at 73% through alignments with NCBI and phylogenetic analysis with 14 protein-coding genes.

Keywords： Beauvria bassiana mitochondrial genome sequence strain degeneration