Additional file 33.

Color-coded positions of all Caenorhabditis elegans genes from 19 chemoreceptor families. The center position of every gene is shown as a grey circle and the chemoreceptor genes are filled and colored. The vertical position of a gene has no significance: it is used merely to space the genes for presentation. Sequence coordinates are shown at the top of each chromosome. Sra superfamily members are shown in shades of green, Srg superfamily members are shown in shades of blue, Str superfamily members are shown in shades of red, and each solo family is shown in a distinct color. Notable concentrations of chemoreceptor genes are apparent on both arms of chromosome II, on the left arm of chromosome IV, and on much of chromosome V, especially both arms.

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Thomas and Robertson BMC Biology 2008 6:42   doi:10.1186/1741-7007-6-42