Phylogenomics and gene selection in Aspergillus welwitschiae: Possible implications in the pathogenicity in Agave sisalana.
Genomics
; 114(6): 110517, 2022 11.
Article
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| MEDLINE
| ID: mdl-36306958
ABSTRACT
Aspergillus welwitschiae causes bole rot disease in sisal (Agave sisalana and related species) which affects the production of natural fibers in Brazil, the main worldwide producer of sisal fibers. This fungus is a saprotroph with a broad host range. Previous research established A. welwitschiae as the only causative agent of bole rot in the field, but little is known about the evolution of this species and its strains. In this work, we performed a comparative genomics analysis of 40 Aspergillus strains. We show the conflicting molecular identity of this species, with one sisal-infecting strain sharing its last common ancestor with Aspergillus niger, having diverged only 833 thousand years ago. Furthermore, our analysis of positive selection reveals sites under selection in genes coding for siderophore transporters, Sodiumcalcium exchangers, and Phosphatidylethanolamine-binding proteins (PEBPs). Herein, we discuss the possible impacts of these gene functions on the pathogenicity in sisal.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Agave
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Genomics
Asunto de la revista:
GENETICA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Brasil