Functional Divergence between the Z and W Alleles of the <italic>UBAP2</italic> Gene Revealed by Differences in Their Expression Patterns in Japanese Quail.

Abstract excerpt

INTRODUCTION: In birds, males have the homogametic sex chromosomes ZZ, whereas females have the heterogametic ZW. Similar to mammalians, avian Z and W chromosomes are believed to have originated from a pair of autosomes. Over evolutionary time, the W chromosome degenerated, losing many genes. The remaining W-linked genes retain homologs on the Z chromosome. One such gene is UBAP2, which participates in cellular...

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• Alleles
• Amino Acid Sequence
• Coturnix
• Gene Expression Regulation, Developmental
• Gonads