Figure 1.

Genetic map of the Chlamydomonas reinhardtii plastid genome. Protein-coding regions are yellow and their exons are labeled with an "E" followed by a number denoting their position within the gene. Introns and their associated open reading frames are orange. Transfer RNA-coding regions are red and are represented by the single-letter code of the amino acid they specify. Ribosomal RNA-coding regions are green. All of the coding regions are shaped into arrows that denote their transcriptional polarities. Gray blocks correspond to the loci that were sequenced and used for measuring nucleotide diversity. The portions of the C. reinhardtii strain CC-2290 plastid genome that were data mined from GenBank are highlighted in pink.