doi: 10.1126/science.860122.
Heteromorphic sex chromosomes in male rainbow trout
- PMID: 860122
- DOI: 10.1126/science.860122
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Heteromorphic sex chromosomes in male rainbow trout
Science.
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Abstract
A pair of subtelocentric chromosomes differs in the size of the short arm in male, but not female, rainbow trout (Salmo gairdneri). The morphological similarity of the X and Y chromosomes, and the observation of Y chromosomes intermediate between the X and normal Y, suggest that the sex chromosomes are at an early stage of differentiation in this species.
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