How were the organelle reference sequences chosen?
Complete organelle genomes are picked up by our automatic processing from DDBJ/GenBank/EMBL. We currently select only one organelle reference sequence per organism. If more than one complete organelle genome has been sequenced from an organism, we select as the reference sequence the most complete, accurate sequence. At this time some complete genomes may lack the complete D-loop. A note is added to these genomes.