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Biochem Genet
1985 Feb 01;231-2:73-88. doi: 10.1007/bf00499114.
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The expression of creatine kinase isozymes in Xenopus tropicalis, Xenopus laevis laevis, and their viable hybrid.
Bürki E
.
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Starch gel electrophoresis of creatine kinase (CK) isozymes of Xenopus tropicalis shows that at least two different genes code for CK in this diploid (2n = 20) species. These genes seen to be orthologous to the CK-A and CK-C genes of extant crossopterygian fish. Additional isozymes may be interpreted either as products of duplicate genes or, more probably, as epigenetically modified forms of the homodimers AtAt and CtCt, respectively. The originally tetraploid species X. laevis laevis (2n = 36), which may have arisen by hybridization of diploid ancestors some 30-40 million years ago, has retained expression of all duplicate CK-A and CK-C genes. Differential expression during ontogenesis (CK-A genes) and in different adult tissues (CK-C genes) indicates that divergence occurred not only with respect to the primary sequence of these duplicate genes, but also with respect to the regulation of their expression. In the interspecific hybrid X. l. laevis x X. tropicalis, all parental CK genes appear to be expressed simultaneously in the heart. However, several subunit combinations cannot be detected on the zymograms.
Ayala,
Enzyme variability in the Drosophila willistoni group. IV. Genic variation in natural populations of Drosophila willistoni.
1972, Pubmed
Ayala,
Enzyme variability in the Drosophila willistoni group. IV. Genic variation in natural populations of Drosophila willistoni.
1972,
Pubmed
Bisbee,
Albumin phylogeny for clawed frogs (Xenopus).
1977,
Pubmed
,
Xenbase
Bozzoni,
Xenopus laevis ribosomal protein genes: isolation of recombinant cDNA clones and study of the genomic organization.
1981,
Pubmed
,
Xenbase
Bürki,
Evolution of globin expression in the genus Xenopus (Anura: Pipidae).
1985,
Pubmed
,
Xenbase
Dawid,
Maternal and cytoplasmic inheritance of mitochondrial DNA in Xenopus.
1972,
Pubmed
,
Xenbase
Eppenberger,
Evolution of creatine kinase.
1967,
Pubmed
Ferris,
Evolution of the differential regulation of duplicate genes after polyploidization.
1979,
Pubmed
Ferris,
Genetic and molecular analysis of nonrandom dimer assembly of the creatine kinase isozymes of fishes.
1978,
Pubmed
Fisher,
Evolution of isozyme loci and their differential tissue expression. Creatine kinase as a model system.
1978,
Pubmed
Herrera,
Preferential gene expression of an amylase allele in interspecific hybrids of Xiphophorus (Pisces: Poeciliidae).
1979,
Pubmed
Jaggi,
Comparative analysis of Xenopus tropicalis and Xenopus laevis vitellogenin gene sequences.
1982,
Pubmed
,
Xenbase
Klemann,
Creatine phosphokinase in Rana pipiens: expression in embryos, early larvae and adult tissues.
1982,
Pubmed
Tymowska,
Karyotype analysis of Xenopus muelleri (Peters) and Xenopus laevis (Daudin), Pipidae.
1972,
Pubmed
,
Xenbase
Tymowska,
A comparison of the karyotype, constitutive heterochromatin, and nucleolar organizer regions of the new tetraploid species Xenopus epitropicalis Fischberg and Picard with those of Xenopus tropicalis Gray (Anura, Pipidae).
1982,
Pubmed
,
Xenbase
Uyeno,
Tetraploid origin of the karyotype of catostomid fishes.
1972,
Pubmed
Vonwyl,
Expression of the lactate dehydrogenase genes of Xenopus species and interspecies hybrids during early development.
1983,
Pubmed
,
Xenbase
Vonwyl,
Expression of the lactate dehydrogenase genes in Xenopus species hybrids.
1980,
Pubmed
,
Xenbase
Wall,
Enzyme patterns in two species of Xenopus and their hybrids.
1974,
Pubmed
,
Xenbase
Westley,
Xenopus laevis serum albumins are encoded in two closely related genes.
1981,
Pubmed
,
Xenbase
Widmer,
Comparative analysis of cloned larval and adult globin cDNA sequences of Xenopus laevis.
1981,
Pubmed
,
Xenbase
Wolff,
Lactate dehydrogenase of Xenopus laevis laevis and Xenopus borealis depends on a multiple gene system.
1982,
Pubmed
,
Xenbase
