Due to the fact that Pyropia haitanensis contains numerous nutritional and biofunctional compounds, its development prospects are very promising. However, asynchronous conchocelis development has limited the large-scale use of new varieties of P. haitanensis. In this study, we combined lipid metabolomic and transcriptomic data to analyze the free-living conchocelis of two P. haitanensis strains that vary regarding conchocelis...