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Electrophoretic studies on poly ploid amphibians part 1 phospho gluconate dehydrogenase






Comparative Biochemistry and Physiology B 56(4): 393-396

Electrophoretic studies on poly ploid amphibians part 1 phospho gluconate dehydrogenase

The mobility, activity and number of 6-PGD [6-phosphogluconate dehydrogenase] electrophoretic bands of the diploid and the tetraploid Odontophrynus americanus frogs are the same. Thus, although genes are duplicated in number in the tetraploid, diploidization did not yet occur. Thus, locus duplication cannot be detected in O. americanus (4n). The 6-PGD of the triploid hybrids follows a trisomic mendelian pattern with 2 codominant alleles. Three bands were found: maternal (AA), hybrid intermediate (AC) and paternal (CC) with an intensity ratio of 4:4:1, respectively. The hypotheses on gene regulation in diploid, triploid and tetraploid Odontophrynus are discussed.

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Accession: 005349005



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