Polymorphism of albumin-like proteins in the South American tetraploid frogOdontophrynus americanus (Salientia: Ceratophrydidae)
✍ Scribed by Beçak, Willy ;Schwantes, Arno R. ;Schwantes, Maria Luiza B.
- Publisher
- John Wiley and Sons
- Year
- 1968
- Tongue
- English
- Weight
- 261 KB
- Volume
- 168
- Category
- Article
- ISSN
- 0022-104X
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✦ Synopsis
Utilizing starch gel electrophoresis, a study was made on the albumjnlike plasma protein of a tetraploid South American species of frog. No allelic polymorphism at this locus was indicated in the congeneric diploid species 0. cultripes, but five distinct electrophoretic phenotypes were encountered among 141 frogs of the tetraploid species 0. americanus. These included two homozygous types each with a single distinctive albumin-like band, and three heterozygous types. The three heterozygotes differed from each other by relative staining intensity of the bands, and presumably represent 3:1, 2:2, and 1:3 ratios of allelic dosage. The frequency distribution of the five phenotypes among 141 frogs fitted well with the expected values calculated on the basis of the binomial ( p + qI4 with allelic frequencies of 0.415 and 0.585.