Premium
Mitochondrial DNA diversity among four sympatric morphs of Arctic charr, Salvelinus alpinus L., from Thingvallavatn, Iceland
Author(s) -
Danzmann R. G.,
Ferguson M. M.,
Skúlason S.,
Snorrason S. S.,
Noakes D. L. G.
Publication year - 1991
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1991.tb04395.x
Subject(s) - biology , sympatric speciation , salvelinus , mitochondrial dna , upgma , zoology , arctic , genetic divergence , sympatry , genetic distance , ecology , genetic diversity , evolutionary biology , genetic variation , genetics , fishery , trout , gene , fish <actinopterygii> , demography , population , sociology
Restriction fragment length polymorphisms in mitochondrial DNA (mtDNA) were examined in progeny of four sympatric morphs of Arctic charr ( Salvelinus alpinus L.) from Thingvallavatn, Iceland. The mtDNA analysis with 46 hexanucleotide restriction enzymes indicates that the Thingvallavatn morphs are very closely related. Sequence divergence was less than 0.2% between any of the five clones detected. Although not significant, the topology of the mtDNA UPGMA dendogram was similar to that from a previous allozyme survey. Icelandic Arctic charr show greater affinity to charr from the British Isles than those from North America supporting their current taxonomic distinction.