Cetacean mitochondrial DNA control region: sequences of all extant baleen whales and two sperm whale species.

@article{rnason1993CetaceanMD,
  title={Cetacean mitochondrial DNA control region: sequences of all extant baleen whales and two sperm whale species.},
  author={{\'U}lfur {\'A}rnason and Anette Gullberg and Bengt Widegren},
  journal={Molecular biology and evolution},
  year={1993},
  volume={10 5},
  pages={
          960-70
        }
}
The sequence of the mitochondrial control region was determined in all 10 extant species commonly assigned to the suborder Mysticeti (baleen or whalebone whales) and to two odontocete (toothed whale) species (the sperm and the pygmy sperm whale). [] Key Result In the mysticetes, both the length and the sequence of the control region were very similar, with differences occurring primarily in the first approximately 160 bp of the 5' end of the L-strand of the region.

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References

SHOWING 1-10 OF 36 REFERENCES

Molecular studies on two variant repeat types of the common cetacean DNA satellite of the sperm whale, and the relationship between Physeteridae (sperm whales) and Ziphiidae (beaked whales).

The similarities between the common cetacean satellite of the blue Whale and the sperm whale were greater than those between the blue whale and the other odontocetes included, suggesting that the evolution of the satellite is slower in the sperm whales than in the other OdontocETes.

Species hybridization between a female blue whale (Balaenoptera musculus) and a male fin whale (B. physalus): molecular and morphological documentation.

The present report of species hybridization between the two largest cetacean species, the blue and the fin whale, documents the occurrence of cetACS hybridization in the wild and is the first example of any cetACEan hybridization giving rise to a fertile offspring.

Evolution of the cetacean mitochondrial D-loop region.

It is concluded that DNA slippage, in addition to point mutation, contributes to the evolution of the D-loop and that regions of conserved secondary structure in cetaceans and an ORF are unlikely to contribute significantly to the conservation of the central region.

Karyotypes and idiograms of sperm and pygmy sperm whales.

The somatic chromosomes of the sperm whale and the pygmy sperm whale were studied to study the karyotypes of the two species, which are entirely different from the general cetacean karyotype.

Southern blot hybridization in cetaceans, using killer whale restriction fragment as a probe.

A 32P nick-translated Hind III restriction fragment from killer whale DNA was hybridized to different cetacean DNAs according to the Southern blot technique, which recorded substantial hybridization to Pst I restriction fragments was recorded in the three odontocete materials.

Determination of nucleotide sequences in DNA.

To be able to sequence genetic material a new approach was desirable and a relatively rapid small-scale method for the fractionation of P-labelled oligonucleotides became the basis for most subsequent studies of RNA sequences.

A comprehensive set of sequence analysis programs for the VAX

A group of programs that will interact with each other has been developed for the Digital Equipment Corporation VAX computer using the VMS operating system.

Genetic Ecology of Whales and Dolphins

PAUP: phylogenetic analysis using parsimony, version 3.1. Illinois Natural History Survey

  • 1993