Neelapu Nageswara Rao Reddy, Reineke Annette, Chanchala Uma Maheswara Rao, Koduru Uma Devi
Department of Bioinformatics, GITAM Institute of Science, GITAM University, Visakhapatnam, India.
Rev Iberoam Micol. 2009 Jun 30;26(2):129-45. doi: 10.1016/S1130-1406(09)70024-5.
The phylogenetic lineage, taxonomic affiliation and interrelationships of important asexual entomopathogenic fungal genera were studied using the sequences of partial regions of beta-tubulin and rRNA genes. The species structures of Beauveria bassiana and Nomuraea rileyi were also investigated. A total of 147 fungal entries covering 94 species were analysed. Phylogenetic analysis placed all the asexual entomopathogenic fungal species analysed, in the family Clavicipitaceae of the order Hypocreales of Ascomycota. Deep phylogenetic lineages were observed in B. bassiana iterating the complex nature of this species. Some of the isolates assigned to this species separated out more distinctly than morphologically distinguishable genera. Cryptic speciation was also evident in N. rileyi. It is concluded that the asexual fungi with entomopathogenic habit arose from a single lineage in sexual Clavicipitaceae.
利用β-微管蛋白和rRNA基因部分区域的序列，研究了重要的无性虫生真菌属的系统发育谱系、分类归属及相互关系。还对球孢白僵菌和莱氏野村菌的物种结构进行了研究。共分析了涵盖94个物种的147个真菌条目。系统发育分析将所有分析的无性虫生真菌物种置于子囊菌门肉座菌目麦角菌科中。在球孢白僵菌中观察到了深入的系统发育谱系，这再次表明了该物种的复杂性。一些被归为该物种的分离株比形态上可区分的属分得更清楚。莱氏野村菌中也明显存在隐存种现象。得出的结论是，具有虫生习性的无性真菌起源于有性麦角菌科中的一个单一谱系。
