Synergistic epistasis enhances the co-operativity of mutualistic interspecies interactions. - Turkarslan S; Stopnisek N; Thompson AW; Arens CE; Valenzuela JJ; Wilson J; Hunt KA; Hardwicke J; de Lomana ALG; Lim S; Seah YM; Fu Y; et al. (The ISME journal, 2021)