Organelle Genomes--Going, Going, Gone

See allHide authors and affiliations

Science  07 Feb 1997:
Vol. 275, Issue 5301, pp. 790
DOI: 10.1126/science.275.5301.790

You are currently viewing the summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution


The organelles of eukaryotic cells—chloroplasts and mitochondria—first arose as engulfed symbionts with their own genomes. They subsequently lost most of their genes to the nucleus, retaining a few that could not be transferred. In his Perspective, Palmer discusses recent evidence that suggests that another organelle, the hydrogenosome, is a highly modified mitochondrion that has lost all of its genetic material.