Nucleic Acids Research, 1983, Vol. 11, No. 10 3347-3350
© 1983
MOLECULAR BIOLOGY |
The Nucleotide sequence of 5S rRNAs from two Annelida species, Perinereis brevicirris and Sabellastarte japonica and and Echiura species,Urechis Unicincius
Laboratory of Molecular Genetics, Department of Biology, Faculty of Science, Nagoya University Chikusa Nagoya 464, Japan
Received March 29, 1983. Accepted April 28, 1983.
The nudeotide sequences of 5S rRNAs from two Annelida species, Perinereis brevicirris and Sabellastarte japonica, and an Echiura species, Ureohis unioinatus have been determined. Their sequences are all 120 nucleotides long. The sequence similarity percents are 88% (Perinereis/ Sabellaetarte), 90% (Sabellastarte/Urechis) and 92%(Perinereis/Urechie), indicating that the Echiura is indistinguishable from the Annelida by their 5S rRNAs. The 5S rRNA sequences from the Annelida/Echiura are most related to those from the Nemertinea (87%), the Mollusca (87%) and the Rotifera (88%)
1present address: Department of Biochemistry and Biophysics, Research Institude for Nuclear Medicine and Biology, Hiroshima University, Hiroshima 734, Japan