New insights into the evolution of subtilisin-like serine protease genes in Pezizomycotina |
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Authors: | Juan Li Li Yu Jinkui Yang Linqian Dong Baoyu Tian Zefen Yu Lianming Liang Ying Zhang Xu Wang Keqin Zhang |
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Institution: | (1) Laboratory for Conservation and Utilization of Bio-resources, and Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, 650091 Kunming, PR China;(2) Institute of Environment Sciences and Lakes Research, Yunnan University, 650091 Kunming, PR China;(3) Engineering Research Center of Industrial Microbiology of Ministry of Education, Fujian Normal University, 350108 Fuzhou, PR China;(4) School of Life Sciences, Yunnan Normal University, 650092 Kunming, PR China |
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Abstract: | Background Subtilisin-like serine proteases play an important role in pathogenic fungi during the penetration and colonization of their
hosts. In this study, we perform an evolutionary analysis of the subtilisin-like serine protease genes of subphylum Pezizomycotina
to find if there are similar pathogenic mechanisms among the pathogenic fungi with different life styles, which utilize subtilisin-like
serine proteases as virulence factors. Within Pezizomycotina, nematode-trapping fungi are unique because they capture soil
nematodes using specialized trapping devices. Increasing evidence suggests subtilisin-like serine proteases from nematode-trapping
fungi are involved in the penetration and digestion of nematode cuticles. Here we also conduct positive selection analysis
on the subtilisin-like serine protease genes from nematode-trapping fungi. |
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