Table 3 Statistical table of chloroplast gene function classification

Photosynthesis

Subunits of photosystem I

psaA, psaB, psaC, psaI, psaJ

5

Subunits of photosystem II

psbA, psbB, psbC, psbD, psbE, psbF, psbG, psbH, psbI, psbJ, psbK, psbL, psbM, psbN, psbT, psbZ

16

Subunits of NADH dehydrogenase

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

11

Subunits of cytochrome b/f complex

petA, petB*,petD*,petG, petL, petN

6

Subunits of ATP synthase

atpA, atpB, atpE, atpF*,atpH, atpI

6

Large subunit of rubisco

rbcL

1

Subunits photochlorophyllide reductase

-

-

Self-replication

Proteins of large ribosomal subunit

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

9

Proteins of small ribosomal subunit

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

12

Subunits of RNA polymerase

rpoA, rpoB, rpoC1*,rpoC2

4

Ribosomal RNAs

rrn16(2),rrn23(2),rrn4.5(2),rrn5(2)

4

Transfer RNAs

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

30

Other genes

Maturase

matK

1

Protease

clpP**

1

Envelope membrane protein

cemA

1

Acetyl-CoA carboxylase

accD

1

c-type cytochrome synthesis gene

ccsA

1

Translation initiation factor

infA

1

other

-

-

Genes of unknown function

Conserved hypothetical chloroplast ORF

ycf1(2),ycf15(2),ycf2(2),ycf3**,ycf4

5

Total

115