A genetic study of various enzyme polymorphisms in Pleurodeles waltlii (Urodele, Amphibian). III. The relationship between sex-linked peptidase-1 expression and gene-dose effects.
Erythrocyte peptidase-1 was analyzed by electrophoresis in various types of triploid Pleurodeles waltlii. Densitometric analysis of the zymograms showed (1) the existence of a gene-dose effect and (2) the presence of two Pep-1B alleles for one Pep-1A allele in heterozygous triploid females of biparental origin. Owing to the sex linkage of the PEP-1 locus (alleles Pep-1A and Pep-1B situated on the Z and W sex chromosomes, respectively), the results show that the sex genotype of these females is ZWW. In a particular line called series 103, the existence of a null allele was demonstrated. Densitometric analysis of females which were Pep-1A/Pep-10 (ZW), Pep-10/Pep-10 (WW), and Pep-1A/Pep-10/Pep-10 (ZWW) confirmed the gene-dose effect.
D000818:Animals; D004303:Dosage Compensation, Genetic; D005260:Female; D008040:Genetic Linkage; D008297:Male; D010447:Peptide Hydrolases / Q000235:genetics*; D012730:Sex Chromosomes; D014562:Caudata / Q000235:genetics*
D010447:Peptide Hydrolases