Polyploidization in the fish family Cyprinidae, order Cypriniformes
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According to their chromosome sets, various members of the fish family Cyprinidae can be classified into two groups, one of which has about 50 chromosomes, the other about 100. In the species endowed with 50 chromosomes, the DNA content per cell ranges from 20 to 38% of that of mammals; this variability is attributed to regionally confined duplications. In the group having about 100 chromosomes, the DNA values comprise about 50% of that of mammals; these species apparently are tetraploid as compared to the former group.
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- Atkin, N. B., G. Mattinson, W. Beçak, and S. Ohno: The comparative DNA content of 19 species of placental mammals, reptiles and birds. Chromosoma (Berl.) 17, 1–10 (1965).Google Scholar
- Beçak, M. L., W. Beçak, and M. N. Rabello: Cytological evidence of constant tetraploidy in the bisexual South American frog, Odontophrynus americanus. Chromosoma (Berl.) 19, 188–193 (1966).Google Scholar
- Bender, K., and S. Ohno: Duplication of the autosomally inherited 6-phosphogluconate dehydrogenase gene locus in tetraploid species of Cyprinid fish. Biochem. Genet. 2, 101–107 (1968).Google Scholar
- Klose, J., U. Wolf, H. Hitzeroth, H. Ritter, N. B. Atkin, and S. Ohno: Duplication of the LDH gene loci by polyploidization in the fish order Clupeiformes. Humangenetik 5, 190–196 (1968).Google Scholar
- Muramoto, J.-I., S. Ohno, and N. B. Atkin: On the diploid state of the fish order Ostariophysi. Chromosoma (Berl.) 24, 59–66 (1968).Google Scholar
- Ohno, S.: Sex chromosomes and sex-linked genes. Vol. I. Monographs on Endocrinology. Berlin-Heidelberg-New York: Springer 1967.Google Scholar
- —, J.-I. Muramoto, L. Christian, and N. B. Atkin: Diploid-tetraploid relationship among old-world members of the fish family Cyprinidae. Chromosoma (Berl.) 23, 1–9 (1967).Google Scholar
- —, U. Wolf, and N. B. Atkin: Evolution from fish to mammals by gene duplication. Hereditas (Lund) 59, 169–187 (1968).Google Scholar
- Ritter, H.: Zur transspezifischen Evolution von Proteinen. Humangenetik 5, 173–189 (1968).Google Scholar