2002/07/01 by R. Vitturi · 1 citation
Agricultural and Biological Sciences · Environmental Science · Biochemistry, Genetics and Molecular Biology · #Chromosomal and Genetic Variations #Environmental DNA in Biodiversity Studies #Genomics and Phylogenetic Studies
paper · pdf · doi:10.1093/jhered/93.4.279
openalex publication_date 2002/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
Spermatogonial and metaphase I chromosomes of the lumbricid earthworm Octodrilus complanatus (Annelida: Oligochaeta) were examined using fluorescent in situ hybridization (FISH) with three repetitive DNA probes-5S rDNA, 18S-26S rDNA, and (TTAGGG)(n). Single-color FISH consistently mapped one chromosome pair per spread using either 5S rDNA or 18S-26S rDNA as probes. Simultaneous (18S-26S)-5S and (18S-26S)-(TTAGGG)(n) FISH demonstrated that repeated units of the two ribosomal families were overlapped and closely associated with telomeric sequences.