Rainfall governs picocyanobacterial ecology in a tropical estuary (Guanabara Bay, Brazil)

Genomic and Transcriptomic Insights into Salinity Tolerance-Based Niche Differentiation of Synechococcus Clades in Estuarine and Coastal Waters

“…Spatio-temporal niche partitioning of different Synechococcus pigment types and phylogenetic clades has been widely observed in estuarine waters or brackish waters along the salinity gradient ( 13 , 22 – 25 ). For example, a clear niche partitioning of Synechococcus ecotypes has been found in the Pearl River estuary (described as being a salt wedge), such that the dominant Synechococcus were shown to shift from freshwater Synechococcus ecotypes to PCB-rich SC5.2 clades, and then to PEB-containing SC5.1 clades along the salinity gradient ( 14 , 25 ).…”