Diploid-tetraploid relationship among old-world members of the fish family Cyprinidae

  title={Diploid-tetraploid relationship among old-world members of the fish family Cyprinidae},
  author={Susumu Ohno and Jun-ichi Muramoto and Lawrence C. Christian and Niels B. Atkin},
Evidence suggesting that the goldfish and the carp of the family Cyprinidae are tetraploid species in relation to other members of the same family were presented. The two barb species, Barbus tetrazona and Barbus jasciatus, were chosen as representatives of diploid members of the family Cyprinidae. These barbs had the diploid chromosome number of 50 and 52 and the DNA value 20–22% that of placental mammals, while the goldfish (Carassius auratus) and the carp (Cyprinus carpio) had the diploid… 
Polyploidization in the fish family Cyprinidae, order Cypriniformes
In some diploids endowed with an increased DNA content per cell, a duplication is demonstrable for the 6-PGD cistron only, and not for the LDH cistrons, thus supporting the hypothesis that regionally confined duplications have occured independently of polyploidization.
On the diploid state of the fish order Ostariophysi
According to this study, diploid members of Ostariophysi underwent extensive chromosomal rearrangements as well as steady increases in DNA contents by regional duplication of chromosomal segments.
Duplication of the autosomally inherited 6-phosphogluconate dehydrogenase gene locus in tetraploid species of cyprinid fish
The present study on electrophoretic patterns of 6-phosphogluconate dehydrogenase indicates that such diploid members as Barbus tetrazonamaintain allelic polymorphism at a single gene locus for this enzyme.
Multiple origins of polyploidy in the phylogeny of southern African barbs (Cyprinidae) as inferred from mtDNA markers
Evidence of multiple, independent origins of polyploidy occurring in the African Cyprinine cyprinids provides a significant contribution to the knowledge on the systematic diversity of these fishes, and warrants a thorough taxonomic reorganization of the genus Barbus.
Significant differential gene duplication without ancestral tetraploidy in a genus of mexican fish
The data indicate that even a large proportion of differentially duplicated loci within a group of related fish species is not critical evidence of common tetraploid ancestry, and may be an important component of the genetic differences that separate congeneric conventional diploid species.
Duplicate gene expression in diploid and tetraploid loaches (Cypriniformes, Cobitidae)
Many of the duplicate loci have diverged to unique patterns of expressions in different tissues or different levels of activity within a single tissue, resulting in low levels of duplicate gene expression observed.
Cytogenetic studies of Poecilia (Pisces)
Demonstration of cytogenetic criteria by which females from triploid clones may be clearly distinguished from sympatric diploid specimens of P. formosa or P. mexicana leaves unresolved, for the present, problems of an appropriate systematic designation for natural populations of Triploid gynogenetic fishes.
Recent duplication of the common carp (Cyprinus carpio L.) genome as revealed by analyses of microsatellite loci.
Phylogenetic analysis of several cyprinid species suggests an evolutionary model for this tetraploidization, with a role for polyploidized in speciation and diversification.
Genetic evolution and diversity of common carp Cyprinus carpio L.
Using microsatellites showed that the genome evolution in common carp exhibited two waves of rearrangements: one whole-genome duplication (12–16 million years ago) and a more recent wave of segmental duplications occurring between 2.3 and 6.8 million Years ago.
The present study was undertaken with a hope to obtain any critical information for understanding some evolutional relationship in the Cyprinidae of Japan.


Comparative DNA values and chromosome complements of eight species of fishes
The present study appears to indicate that a series of polyploidization of the original vertebrate genome took place while vertebrates were still aquatic forms. The polyphyletic evolution of
Cytological evidence of constant tetraploidy in the bisexual South American frog Odontophrynus americanus
Odontophrynus americanus has 2n=44 chromosomes in somatic and gonad cells which can be ordered in 11 groups of homologues and there is no indication of abnormalities in ♂ and ♀ gonad development.
The comparative DNA content of 19 species of placental mammals, reptiles, and birds
Comparisons of DNA values obtained from the Feulgen stain content of 19 species of placental mammals, birds and reptiles are by and large in good agreement with previous results obtained from two-dimensional measurements of chromosome area.
Chromosome size and DNA content of species of anemone L. and related genera (Ranunculaceae)
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An integrating microdensitometer for biological cells
A photoelectric method for the rapid determination of the total absorption of biological cells is described. The image of the cell, formed by a microscope, is scanned by a mechanically-driven
Genetical studies on goldfish of Japan
  • Cytologia ( Tokyo )
  • 1939