期刊
ENVIRONMENTAL MICROBIOLOGY
卷 20, 期 9, 页码 3393-3405出版社
WILEY
DOI: 10.1111/1462-2920.14379
关键词
-
类别
资金
- Natural Science Foundation of Shanxi Province [201601D011065]
- Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province
- Shanxi Scholarship Council of China [2017-015]
- Hundred Talents Program of Shanxi Province
- Special Fund for Large Scientific Instruments and Equipment in Shanxi Province
Nuclear genomes of two isolates of Hirsutella thompsonii, a pathogen causing epizootics among mites, have been reported; in contrast, its mitochondrial genome (mitogenome) has remained unknown, limiting our understanding of its evolution. Herein, we annotated the first complete mitogenome of H. thompsonii, which encoded all standard fungal mitochondrial genes plus three free-standing ORFs. Transcriptional analyses validated the expression of most conserved genes and revealed some interesting transcription patterns of mitochondrial genes. Phylogenetic analyses confirmed its placement in Ophiocordycipitaceae. Comparison of five different isolates originally collected from different locations revealed mitogenome size variations (60.3-66.4 kb) mainly due to different numbers of introns. A total of 15 intron loci were identified, with 11 existing in all 5 isolates and 4 showing presence/absence dynamics. These introns were most likely obtained through horizontal transfer from other fungal organisms. Those common introns might have been in H. thompsonii mitogenomes since the divergence of the fungus from its putative sister species H. minnesotensis, whereas those dynamic introns might have experienced 1-2 gain or loss events. We also detected evidence of degeneration for some introns. Overall, our study shed new insights into the mitochondrial evolution of the acaropathogenic fungus H. thompsonii.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据