DNA content, karyotypes, and chromosomal location of 18S-5.8S-28S ribosomal loci in some species of bivalve molluscs from the Pacific Canadian coast

Genome. 2000 Dec;43(6):1065-72. doi: 10.1139/g00-089.


The DNA content of 10 species of bivalve molluscs from British Columbia coast was determined by image analysis, and the karyotypes of the horse clam Tressus capax, the bent-nose macoma Macoma nasuta, and the nuttall's mahogany clam Nuttallia nuttallii are described here for the first time. We also have analyzed the location of rDNA loci using a 28S-5.8S-18S probe in four of these species: Mytilus californianus, M. trossulus, Macoma nasuta and N. nuttallii. Results obtained report new data about cytogenetic characteristics of bivalve molluscs.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Canada
  • Chromosome Mapping
  • Chromosomes
  • DNA / metabolism*
  • DNA, Ribosomal / genetics*
  • Karyotyping
  • Mollusca / genetics*
  • Pacific Ocean


  • DNA, Ribosomal
  • DNA