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. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: Cytoskeleton (Hoboken). 2010 Feb;67(2):71–80. doi: 10.1002/cm.20422

Fig. 3.

Fig. 3

Phylogeny tree reveals that two duplicated genes for RSP4 and RSP6 are not present in every organism with motile cilia and flagella. For example, Drosophila melanogaster (arrow) only contains one RSP4/6 gene, while the two RSP4/6 orthologous genes in mammals form two distinct sub-trees (brackets). Notably, Chlamydomonas RSP4 and RSP6 (arrowheads) are most homologous to each other rather than to either of the mammalian sub-trees. The tree was part of the output from BLASTP available in NCBI webpage using Chlamydomonas RSP4 as a query. For clarity, redundant sequences were deleted and scientific names for organisms were replaced by common names.