Widespread occurrence of the Tc1 transposon family: Tc1-like transposons from teleost fish

Mol Gen Genet. 1994 Sep 28;244(6):606-12. doi: 10.1007/BF00282750.

Abstract

We characterized five transposable elements from fish: one from zebrafish (Brachydanio rerio), one from rainbow trout (Salmo gairdneri), and three from Atlantic salmon (Salmo salar). All are closely similar in structure to the Tc1 transposon of the nematode Caenorhabditis elegans. A comparison of 17 Tc1-like transposons from species representing three phyla (nematodes, arthropods, and chordates) showed that these elements make up a highly conserved transposon family. Most are close to 1.7 kb in length, have inverted terminal repeats, have conserved terminal nucleotides, and each contains a single gene encoding similar polypeptides. The phylogenetic relationships of the transposons were reconstructed from the amino acid sequences of the conceptual proteins and from DNA sequences. The elements are highly diverged and have evidently inhibited the genomes of these diverse species for a long time. To account for the data, it is not necessary to invoke recent horizontal transmission.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • DNA Transposable Elements / genetics*
  • Fishes / genetics*
  • Molecular Sequence Data
  • Oncorhynchus mykiss / genetics
  • Phylogeny
  • Polymerase Chain Reaction
  • Salmon / genetics
  • Sequence Deletion
  • Zebrafish / genetics

Substances

  • DNA Transposable Elements

Associated data

  • GENBANK/L12206
  • GENBANK/L12207
  • GENBANK/L12208
  • GENBANK/L12209
  • GENBANK/L12210