Fig 2.

(a) Median-joining network showing 16 haplotypes found from 108 samples of Lampetra at six sampling locations. Note that Bann (Lf) is a freshwater-resident L. fluviatilis population. Lf = anadromous L. fluviatilis, Lp = L. planeri and Lf Res = freshwater-resident population of L. fluviatilis. Details of the sample locations are given in Table S1 (Supporting information). (b) Forty-six haplotypes from combined studies comprising of both L. fluviatilis and L. planeri. Circled groups show correspondence with clades identified in Mateus et al. (2011). Clades I–III consist of freshwater-resident L. planeri (but see Mateus et al. ^2013b) with restricted distribution, and clade IV contains both freshwater-resident Lp and anadromous Lf with a wider distribution along with haplotypes identified in Espanhol et al. (2007) from France, Sweden and Germany (Lp and Lf H22) and France (Lp H28). Please see the open-access online paper for a colour version of this figure.