“…GeoChip is a high-throughput microarray-based genomic technology that contains hundreds to thousands of different gene families involved in various biogeochemical processes, including cycling of carbon, nitrogen, sulfur, and phosphorus, heavy metal resistance, antibiotic resistance, pathogenicity, secondary metabolism, organic pollutant degradation, electron transport, stress responses, virulence and viruses (He et al 2010 , Wang et al 2014 ). GeoChip has been demonstrated to be a powerful method for surveying the composition, richness, and interactions of FMFG in various aquatic ecosystems, such as freshwater lakes (Wang et al 2019 , Li et al 2021 ), acidic mining lakes (Ren et al 2018 ), and groundwater (He et al 2018 ). This method will help investigations into the responses of FMFG richness, composition and interactions to Microcystis blooms.…”