Abstract
The accumulation of non-functional (especially lethal) genes on sex-chromosomes will be slower in metatherians than in eutherians, in eases where the sex-determining system is other than XY/XX.
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Mayo, O. The sheltering of lethals on metatherian sex chromosomes. Genetica 55, 27–31 (1981). https://doi.org/10.1007/BF00134000
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DOI: https://doi.org/10.1007/BF00134000