P. yezoensis, a marine red alga so-called 'nori' is an important edible laver in the food industry: for example, it is essential for making sushi rolls. However, the biological properties, such as morphological/reproductive changes in a life cycle are poorly understood at the molecular level. This study aims to publish a genome resource to understand such life cycle changes for a red alga. <p> WGS library of P. yezoensis protoplasts used for Genome sequencing.