Comparative molecular evolution of chitinases in ascomycota with emphasis on mycoparasitism lifestyle.

ABSTRACT: Chitinases are involved in multiple aspects of fungal life cycle, such as cell wall remodelling, chitin degradation and mycoparasitism lifestyle. To improve our knowledge of the chitinase molecular evolution of Ascomycota, the gene family of 72 representatives of this phylum was identified and subjected to phylogenetic, evolution trajectory and selective pressure analyses. Phylogenetic analysis showed that the chitinase gene family size and enzyme types varied significantly, along with species evolution, especially for groups B and C. In addition, two new subgroups, C3 and C4, are recognized in group C chitinases. Random birth and death testing indicated that gene expansion and contraction occurred in most of the taxa, particularly for species in the order Hypocreales (class Sordariomycete

SUBMITTER: Wang C 

PROVIDER: S-EPMC8715425 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature