CYTOGENETIC ANALYSIS OF PSEUDOLINKAGE OF LDH LOCI IN THE TELEOST GENUS SALVELINUS

Abstract
Cytological and genetic analyses provide evidence that spontaneous centric fusion and fission can account for curious patterns of pseudolinkage of two LDH loci in males of brook trout (Salvelinus fonthalis) and in the F1, F2, and backcross generations of lake trout (S. namaycush) × brosk trout hybrids. Intraindividual polymorphisms for acrocentric and metacentric chromosomes in somatic and gonadal tissue of these fish have been related to the proposed polyploid evolution in Salmonidae.