Structure of plant chloroplast genome

Martin F. Wojciechowski
Click on an image to view larger version & data in a new window
Click on an image to view larger version & data in a new window

Physical and gene map of the green alga Nephroselmis chloroplast genome, showing the typical structural arrangement found in land plants. Genes located on the inside of the map are transcribed counterclockwise, and genes on the outside are transcribed clockwise. The inner circle shows where the Small Single-Copy region (SSC), Large Single Copy region (LSC) and Inverted Repeats (IR), are located. The thick lines on the actual map are the IRs. Figure from Turmel et al. (1999). © 1999 National Academy of Sciences, U.S.A. The "B" copy (IR-B) of the inverted repeat is the copy that is missing in legume taxa in the IRLC.


Turmel, M., C. Otis, and C. Lemieux. 1999. The complete chloroplast DNA sequence of the green alga Nephroselmis olivacea: Insights into the architecture of ancestral chloroplast genomes. Proceedings of the National Academy of Sciences USA 96: 10248-10253.

About This Page

Martin F. Wojciechowski
Arizona State University, Tempe, Arizona, USA

Correspondence regarding this page should be directed to Martin F. Wojciechowski at

All Rights Reserved.

close box

This page is a note that is attached to a branch of the Tree of Life.

ToL notes provide brief accounts of characteristics, short summaries, commentaries, media files, taxonomic information, or identification tools for a given group of organisms.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

close box

Green plants

Page Content

articles & notes




Explore Other Groups

random page

  go to the Tree of Life home page