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Figure 1 | BMC Evolutionary Biology

Figure 1

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

Figure 1

Gene map of the Alsophila spinulosa chloroplast genome. Thick black lines on inner cycle indicate the inverted repeats (IRA and IRB) which separate the genome into the large (LSC) and small (SSC) single copy regions. Genes shown on the inside of the circle are transcribed counterclockwise and those on the outside clockwise. Gene boxes are color coded by functional group as shown in the key. Asterisks denote genes with introns. Ψ represents pseudogene. Nucleotide positions are numbered starting at the boundary of IRA and LSC, with position 1 in the intron of ndhB. The circle of hashmarks indicates the location of direct and inverted repeats detected by REPuter [28].

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