Whole-genome sequencing of Leptospira interrogans from southern Brazil: genetic features of a highly virulent strain
Mem. Inst. Oswaldo Cruz
;
113(2): 80-86, Feb. 2018. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-894891
ABSTRACT
BACKGROUND Leptospirosis is the most widespread zoonotic disease. It is caused by infection with pathogenic Leptospira species, of which over 300 serovars have been described. The accurate identification of the causative Leptospira spp. is required to ascertain the pathogenic status of the local isolates. OBJECTIVES This study aimed to obtain the complete genome sequence of a virulent Leptospira interrogans strain isolated from southern Brazil and to describe its genetic features. METHODS The whole genome was sequenced by next-generation sequencing (Ion Torrent). The genome was assembled, scaffolded, annotated, and manually reviewed. Mutations were identified based on a variant calling analysis using the genome of L. interrogans strain Fiocruz L1-130 as a reference. FINDINGS The entire genome had an average GC content of 35%. The variant calling analysis identified 119 single nucleotide polymorphisms (SNPs), from which 30 led to a missense mutation. The structural analyses identified potential evidence of genomic inversions, translocations, and deletions in both the chromosomes. MAIN CONCLUSIONS The genome properties provide comprehensive information about the local isolates of Leptospira spp., and thereby, could facilitate the identification of new targets for the development of diagnostic kits and vaccines.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Filogenia
/
Microbiología del Agua
/
Leptospira interrogans
Tipo de estudio:
Estudio pronóstico
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Mem. Inst. Oswaldo Cruz
Asunto de la revista:
Medicina Tropical
/
Parasitología
Año:
2018
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Federal de Pelotas/BR
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