The SSU rDNA coding region of a filose amoeba contains a group I intron lacking the universally conserved G at the 3'-terminus.

@article{Bhattacharya2000TheSR,
  title={The SSU rDNA coding region of a filose amoeba contains a group I intron lacking the universally conserved G at the 3'-terminus.},
  author={Debashish Bhattacharya and Mariana Cabral de Oliveira},
  journal={The Journal of eukaryotic microbiology},
  year={2000},
  volume={47 6},
  pages={585-9}
}
We sequenced small subunit ribosomal DNA (rDNA) PCR-fragments of sizes 2.3 kb and 2.9 kb isolated from a culture of the red alga, Porphyra spiralis var. spiralis. Phylogenetic analysis of the 2.3-kb fragment showed that it encoded the sequence of a contaminant filose amoeba. The Nuclearia-like amoeba (named strain N-Por) was identified with scanning electron microscopy. Its rDNA sequence was positioned with strong bootstrap support within a diverse protist assemblage that includes filose… CONTINUE READING