Linkage variation at the sex‐determining locus within Fraser strain Arctic charr Salvelinus alpinus

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 previ...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Moghadam, H. K., Ferguson, M. M., Danzmann, R. G.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2007
Subjects:
Arctic
Canada
Fraser River
Arctic charr
Salvelinus alpinus
Online Access:http://dx.doi.org/10.1111/j.1095-8649.2007.01598.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2007.01598.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2007.01598.x
Description
Summary: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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