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Mitochondrial evolution in the entomopathogenic fungal genus Beauveria
Archives of Insect Biochemistry and Physiology ( IF 1.5 ) Pub Date : 2020-10-30 , DOI: 10.1002/arch.21754 Travis Glare 1 , Matt Campbell 2 , Patrick Biggs 2 , David Winter 2 , Abigail Durrant 1 , Aimee McKinnon 1 , Murray Cox 2
Archives of Insect Biochemistry and Physiology ( IF 1.5 ) Pub Date : 2020-10-30 , DOI: 10.1002/arch.21754 Travis Glare 1 , Matt Campbell 2 , Patrick Biggs 2 , David Winter 2 , Abigail Durrant 1 , Aimee McKinnon 1 , Murray Cox 2
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Species in the fungal genus Beauveria are pathogens of invertebrates and have been commonly used as the active agent in biopesticides. After many decades with few species described, recent molecular approaches to classification have led to over 25 species now delimited. Little attention has been given to the mitochondrial genomes of Beauveria but better understanding may led to insights into the nature of species and evolution in this important genus. In this study, we sequenced the mitochondrial genomes of four new strains belonging to Beauveria bassiana, Beauveria caledonica and Beauveria malawiensis, and compared them to existing mitochondrial sequences of related fungi. The mitochondrial genomes of Beauveria ranged widely from 28,806 to 44,135 base pairs, with intron insertions accounting for most size variation and up to 39% (B. malawiensis) of the mitochondrial length due to introns in genes. Gene order of the common mitochondrial genes did not vary among the Beauveria sequences, but variation was observed in the number of transfer ribonucleic acid genes. Although phylogenetic analysis using whole mitochondrial genomes showed, unsurprisingly, that B. bassiana isolates were the most closely related to each other, mitochondrial codon usage suggested that some B. bassiana isolates were more similar to B. malawiensis and B. caledonica than the other B. bassiana isolates analyzed.
中文翻译：
昆虫病原性白僵菌属线粒体进化
真菌属白僵菌属的物种是无脊椎动物的病原体，通常被用作生物农药中的活性剂。经过几十年的描述，几乎没有物种，最近的分子分类方法已导致现在划定了25种以上的物种。对白僵菌的线粒体基因组的关注很少，但更好的理解可能会导致对该重要属的物种性质和进化的见解。在这项研究中，我们对四种球孢白僵菌，球孢白僵菌和马拉维白僵菌的四个新菌株的线粒体基因组进行了测序，并将它们与相关真菌的现有线粒体序列进行了比较。白僵菌的线粒体基因组范围从28806到44135个碱基对，内含子插入占大多数大小变异，并且由于基因中的内含子，占线粒体长度的39％（B. malawiensis）。在球孢白僵菌序列中，常见的线粒体基因的基因顺序没有变化，但是在转移核糖核酸基因的数目上观察到了变化。虽然使用全线粒体基因组系统发育分析表明，勿庸置疑，这球孢白僵菌菌株是最密切相关的建议对方，线粒体密码子使用，有些球孢白僵菌分离物更类似于B. malawiensis和B. caledonica比其他乙巴氏菌 分离物进行了分析。
更新日期：2020-11-16
中文翻译：
昆虫病原性白僵菌属线粒体进化
真菌属白僵菌属的物种是无脊椎动物的病原体，通常被用作生物农药中的活性剂。经过几十年的描述，几乎没有物种，最近的分子分类方法已导致现在划定了25种以上的物种。对白僵菌的线粒体基因组的关注很少，但更好的理解可能会导致对该重要属的物种性质和进化的见解。在这项研究中，我们对四种球孢白僵菌，球孢白僵菌和马拉维白僵菌的四个新菌株的线粒体基因组进行了测序，并将它们与相关真菌的现有线粒体序列进行了比较。白僵菌的线粒体基因组范围从28806到44135个碱基对，内含子插入占大多数大小变异，并且由于基因中的内含子，占线粒体长度的39％（B. malawiensis）。在球孢白僵菌序列中，常见的线粒体基因的基因顺序没有变化，但是在转移核糖核酸基因的数目上观察到了变化。虽然使用全线粒体基因组系统发育分析表明，勿庸置疑，这球孢白僵菌菌株是最密切相关的建议对方，线粒体密码子使用，有些球孢白僵菌分离物更类似于B. malawiensis和B. caledonica比其他乙巴氏菌 分离物进行了分析。
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