Common Repeat Elements in the Mitochondrial and Plastid Genomes of Green Algae.

ABSTRACT: Despite both originating from endosymbiotic bacteria, one does not typically expect mitochondrial DNA (mtDNA) to show strong sequence identity to plastid DNA (ptDNA). Nevertheless, a recent analysis of Haematococcus lacustris revealed exactly that. A common repeat element has proliferated throughout the mtDNA and ptDNA of this chlamydomonadalean green alga, resulting in the unprecedented situation whereby these two distinct organelle genomes are largely made up of nearly identical sequences. In this short update to the work on H. lacustris, I highlight another chlamydomonadalean species (Stephanosphaera pluvialis) for which matching repeats have spread throughout its organelle genomes (but to a lesser degree than in H. lacustris). What's more, the organelle repeats from S. pluvialis are si

SUBMITTER: Smith DR 

PROVIDER: S-EPMC7235400 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature