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Table 2 Expanded genes in Scenedesmus and other UTC algal cpDNAs

From: The complete chloroplast genome sequence of the chlorophycean green alga Scenedesmus obliquus reveals a compact gene organization and a biased distribution of genes on the two DNA strands

Gene Chlorella Oltmannsiellopsis Pseudendoclonium Scenedesmus Chlamydomonas
  Size (bp) Factora Size (bp) Factora Size (bp) Factora Size (bp) Factora Size (bp) Factora
cemA b 801 1.6 1059 2.2 909 1.8 1278 2.6 1503 3.1
clpP 606 0.9 588 0.9 597 0.9 1614 2.3 1575 2.3
ftsH b 5163 1.9 6879 2.6 7791 2.9 10998 4.1 8916 3.3
infA b 240 1.2 222 1.1 330 1.6 306 1.5 c c
rpoA 837 0.9 1527 1.6 1734 1.8 1437 1.5 2213 d 2.3
rpoB 3906 1.2 4251 1.3 6537 2.0 4896 e 1.5 4967 e 1.5
rpoC1 2511 1.3 3066 1.5 4737 2.4 4590 2.3 5739 e 2.9
rpoC2 4689 1.3 5580 1.5 10389 2.8 7659 2.1 9363 2.5
rps2 804 1.2 717 1.0 777 1.1 2747 e 4.0 2731 e 4.0
rps3 696 1.1 708 1.1 690 1.1 2103 3.3 2139 3.3
rps18 b 312 1.4 237 1.1 258 1.2 567 2.6 414 1.9
ycf1 b 2460 2.0 2427 2.0 2505 2.0 7008 5.7 5988 4.9
  1. a Expansion factor relative to the corresponding Mesostigma gene. Each value was obtained by dividing the size of the UTC algal gene by the size of the corresponding Mesostigma gene.
  2. b Genes also expanded in streptophyte cpDNAs. Note that the ftsH gene is designated as ycf2 in Chlorella, Chlamydomonas and land plants cpDNAs.
  3. c infA is missing in Chlamydomonas cpDNA
  4. d Size derived from our unpublished sequence data. A portion of the rpoA region is not annotated in GenBank:NC_005353 as a result of a sequencing error introducing a frameshift mutation.
  5. e Gene occurring as two independent ORFs. The indicated size includes the spacer separating the ORFs.