Table 1.

Conserved Protein Domains Detected in the 153 Freestanding ORFs of 14 Bryopsidales Chloroplast Genomes

Conserved Domain	No. of ORFs
Methyltransferase	19
Group II intron reverse transcriptase/maturase	18
DNA polymerase A	6
Phage- or plasmid-associated DNA primase	6
Integrase	4
NAD+ dependent DNA ligase	3
Rhs family protein	2
AGE domain	1
HNH endonuclease	1
Histidine carboxylase PI chain	1
Nonproteinogenic amino acid hydroxylase	1
Trimeric dUTPase	1
psbE	1
DNA primase	1
No conserved domain	88