Table 2 List of genes in the cp genome of the nine Scutellaria species

rRNA

rRNA genes

rrn16S(×2), rrn23S(×2), rrn4.5S(×2), rrn5S(×2)

8

tRNA

tRNA genes

trnH-GUG, trnK-UUU, trnQ-UUG, trnS-GCU, trnG-GCC, trnR-UCU, trnC-GCA, trnD-GUC, trnY-GUA, trnE-UUC, trnM-CAU, trnS-UGA, trnG-UCC, trnfM-CAU, trnS-GGA, trnT-UGU, trnL-UAA, trnF-GAA, trnV-UAC, trnT-GGU, trnW-CCA, trnP-UGG, trnI-CAU(×2), trnL-CAA(×2), trnV-GAC(×2), trnI-GAU(×2), trnA-UGC(×2), trnR-ACG(×2), trnN-GUU(×2), trnL-UAG

37

Self replication

Large subunit of ribosome

rpl14, rpl16, rpl2(×2), rpl20, rpl22, rpl23(×2), rpl32, rpl33, rpl36

11

DNA dependent RNA polymerase

rpoA, rpoB, rpoC1, rpoC2

4

Small subunit of ribosome

rps11, rps12(×2), rps14, rps15, rps16, rps18, rps19, rps2, rps3, rps4, rps7(×2), rps8

14

Photosynthesis

Subunits of ATP synthase

atpA, atpB, atpE, atpF, atpH, atpI

6

Subunits of photosystem II

lhbA, psbA, psbB, psbC, psbD, psbE, psbF, psbI, psbJ, psbK, psbL, psbM, psbN, psbT, ycf3

15

Subunits of NADH-dehydrogenase

ndhA, ndhB(×2), ndhC, ndhD, ndhE, ndhF, ndhG, ndhH, ndhI, ndhJ, ndhK

12

Subunits of cytochrome b/f complex

petA, petB, petD, petG, petL, petN

6

Subunits of photosystem I

psaA, psaB, psaC, psaI, psaJ

5

Subunit of rubisco

rbcL

1

Other genes

Subunit of Acetyl-CoA-carboxylase

accD

1

c-type cytochrom synthesis gene

ccsA

1

Envelop membrane protein

cemA

1

Protease

clpP

1

Translational initiation factor

infA

1

Maturase

matK

1

Unknown

Conserved open reading frames

ycf1, ycf15(×2), ycf2(×2), ycf4

6

Total

131