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Colletotrichum truncatum , a major fungal phytopathogen, causes the anthracnose disease on an economically important spice crop chilli ( Capsicum annuum ), resulting in huge economic losses in tropical and sub-tropical countries. It follows a subcuticular intramural infection strategy on chilli with a short, asymptomatic, endophytic phase, which contrasts with the intracellular hemibiotrophic lifestyle adopted by most of the  Colletotrichum  species. However, little is known about the molecular determinants and the mechanism of pathogenicity in this fungus. A high quality whole genome sequence and gene annotation based on transcriptome data of an Indian isolate of  C .  truncatum  from chilli has been obtained. Analysis of the genome sequence revealed a rich repertoire of pathogenicity genes in  C .  truncatum  encoding secreted proteins, effectors, plant cell wall degrading enzymes, secondary metabolism associated proteins, with potential roles in the host-specific infection strategy, placing it next only to the  Fusarium  species. The size of genome assembly, number of predicted genes and some of the functional categories were similar to other sequenced  Colletotrichum  species. The comparative genomic analyses with other species and related fungi identified some unique genes and certain highly expanded gene families of CAZymes, proteases and secondary metabolism associated genes in the genome of  C .  truncatum . The draft genome assembly and functional annotation of potential pathogenicity genes of  C .  truncatum  provide an important genomic resource for understanding the biology and lifestyle of this important phytopathogen and will pave the way for designing efficient disease control regimens.

Genome sequencing and comparative genomics reveal a repertoire of putative pathogenicity genes in chilli anthracnose fungus Colletotrichum truncatum