Linkage variation at the sex-determining locus within Fraser strain Arctic charr Salvelinus alpinus |
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| Authors: | H K Moghadam M M Ferguson R G Danzmann † |
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| Institution: | Department of Integrative Biology, University of Guelph, Guelph, Ontario, N1G 2W1, Canada |
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| Abstract: | 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. |
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| Keywords: | Arctic charr chromosome rearrangement genetic map pseudolinkage recombination translocation |
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