Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"sex ratio distortion"”.
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Physiological and Molecular Consequences of Large Y Chromosome Long Arm Deletions in Mice
… Y chromosome contains genes important for male sexual maturity and reproduction. The mouse Y chromosome long arm harbours a number of multi-copy genes whose absence or reduced representation has been linked to sperm defects and offspring sex ratio distortion in favour of females. Understanding …
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Sequence of the mouse Y chromosome
… been studied for over 50 years, from the early sex determination and immunological phenotypes attributed to it in the 1950s, to the several mouse Y permatogenic phenotypes and the sex ratio distortion phenotype that are still being studied today. However, even though the draft sequence of the …
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Analysis of the role of the X/Y homologous gene family Xmr/Sly in murine spermiogenesis
… ability, up-regulation of spermatid-expressed sex-linked genes, and an offspring sex ratio distortion in favour of females. The severity of the testicular phenotypes correlates with the extent of the deletion, with mice lacking the Yq being sterile. It has been suggested that deficiency of a …
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Speciation and the evolution of male breeding coloration in darters
The means by which sexual selection can promote speciation is a topic of much debate and study. Darters, a species-rich clade of freshwater fishes that exhibit widespread sexual dichromatism, may represent a prime example of speciation by sexual selection. I investigated mechanisms of sexual …