Whole-genome characterization and comparative genomics of a novel freshwater cyanobacteria species: Pseudanabaena punensis

•Identification of novel cyanobacteria from PVC pipelines that supply fresh drinking water.•De novo whole genome sequencing and development of genomics resources.•Holistic overview based on morphology, phylogeny, and whole genome characterization.•Identification of gene clusters associated with multidrug resistance and heavy metal tolerance.•Fatty acid profiling and their potential importance in industrial applications.