Premium
Linkage variation at the sex‐determining locus within Fraser strain Arctic charr Salvelinus alpinus
Author(s) -
Moghadam H. K.,
Ferguson M. M.,
Danzmann R. G.
Publication year - 2007
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.1095-8649.2007.01598.x
Subject(s) - salvelinus , biology , locus (genetics) , genetic linkage , sex linkage , genetics , arctic , microsatellite , evolutionary biology , zoology , allele , ecology , gene , chromosome , fishery , fish <actinopterygii> , trout
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.