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Can J Genet Cytol. 1978 Sep;20(3):349-54.

Sex chromosomes in the sockeye salmon: a Y-autosome fusion.

Abstract

Chromosomes of 21 sockeye salmon [Oncorhynchus nerka (Walbaum)] from three locations in Washington state were examined. All males had 57 chromosomes, while all females had 58 chromosomes. Both sexes had 104 chromosome arms. It appears that in males of this species the Y chromosome and an autosome have fused to form a metacentric chromosome.

PMID:
570442
DOI:
10.1139/g78-039
[Indexed for MEDLINE]

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