Complete genome sequence of cyanobacterium Fischerella sp. NIES-3754, providing thermoresistant optogenetic tools

•We isolated Fischerella sp. NIES-3754 from hotspring at Suwa-shrine, Suwa, Nagano, Japan and determined its complete genome sequence.•Genome of the NIES-3754 strain consists of one chromosome and two putative plasmids (total 5,826,863bp with 41.0% GC content) and contains 3,982 protein coding sequences.•We identified photosensor genes of 5 phytochromes and 9 cyanobacteriochromes, which will facilitate the optogenetics of thermophile. Cyanobacterial phytochrome-class photosensors are recently emerging optogenetic tools. We isolated Fischerella sp. strain NIES-3754 from hotspring at Suwa-shrine, Suwa, Nagano, Japan. We determined complete genome sequence of the NIES-3754 strain, which is composed of one chromosome and two putative replicons (total 5,826,863bp containing no gaps). We identified photosensor genes of 5 phytochromes and 9 cyanobacteriochromes, which will facilitate optogenetics of thermophile.