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Table 3 Comparison of gene contents of fern chloroplast genomes

From: Complete chloroplast genome sequence of a tree fern Alsophila spinulosa: insights into evolutionary changes in fern chloroplast genomes

Genea Alsophila spinulosa Adiantum capillus-veneris Psilotum nudum Angiopteris evecta
tRNA gene     
   trnR-CCG (rbcL-accD) trnR-UCG trnSeC
   trnL-CAA (ndhB Exon2 3')
   trnL-UAA (rps4-ndhJ) trnL-CAA trnL-CAA
   trnK-UUU (MatK)
   trnS-CGA (psbK-psbI)
trnT-UGU (rps4-ndhJ) (without intron)
trnT-UGU (ndhB Exon2 3') (with one intron)
   trnV-GAC (rrn16-rps12)
   trnG-UCC (ycf12-atpA)
Protein gene     
   psaM
   ycf66
   chlB
   chlL
   chlN
   rps16
   ycf1
  1. a Only the genes that are missing in one or more cp genomes are shown. The loci of tRNA genes are denoted by their neighbor protein genes. A filled/open circle denotes the presence/absence of a gene. A filled triangle indicates a pseudogene.