Journal
JOURNAL OF FISH BIOLOGY
Volume 71, Issue -, Pages 294-301Publisher
BLACKWELL PUBLISHING
DOI: 10.1111/j.1095-8649.2007.01598.x
Keywords
arctic chart; chromosome rearrangement; genetic map; pseudolinkage; recombination; translocation
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The association of genetic markers linked to the sex-determining locus (SEX) was investigated in five Arctic charr Salvelinus alpinus full sib families, all originating from the Fraser River strain, Labrador, Canada. Two distinct sex-linkage classes were identified: type I (two families), with previously reported markers on linkage group 4 (AC-4) linked with SEX; and type II (three families), with two unlinked segments of the AC-4 linkage group, but with markers in only one cluster associated with SEX. Large differences in recombination rates, pseudolinkage assembly or various chromosomal rearrangements may explain these findings. (c) 2007 The Authors Journal compilation (c) 2007 The Fisheries Society of the British Isles.
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