Table 3 Chondrostoma lusitanicum ND-5/6 RFLP composite haplotypes, restriction enzyme phenotypes per endonuclease, and haplotype distribution frequencies across the five basins sampled. The restriction enzymes used were: 1, BstNI; 2, BstUI; 3 DdeI; 4, HaeIII; 5, HhaI; 6, HindIII; 7, HinfI; 8, HpaII; 9, MboI; 10, NciI; 11, RsaI; 12, StyI; 13, TaqI. The basins sampled were: T, Tejo; R, Samarra; S, Sado; A, Arade; M, Mira

From: River basin-related genetic structuring in an endangered fish species, Chondrostoma lusitanicum, based on mtDNA sequencing and RFLP analysis