Evolution of "Rhabditidae" and the Male Tail
Keywords:bursa, caenorhabditis elegans, development, homology, male tail, molecular systematics, morphology nematode, phylogeny, rdna, rhabditidae
AbstractEvolution of diverse male tail epidermal features of representative species in the family Rhabditidae (Nematoda:Rhabditida) was mapped by parsimony on a molecular phylogeny inferred with nearly complete DNA sequences of small subunit ribosomal RNA genes. Although the molecular phylogeny is consistent with some previously proposed relationships, there are also some major differences, suggesting a revision of rhabditid taxonomy is required. To reconstruct male tail evolution, character states and homologies were determined with the aid of developmental profiling at the level of single cells. Because the model genetic system Caenorhabditis elegans is a member of Rhabditidae and allows the genetic and developmental mechanisms of morphogenesis to be elucidated, candidate genes and pathways can be proposed for several of the reconstructed evolutionary changes in male tail morphology.
Copyright and Permissions
All material published by the Society of Nematologists (SON), except for papers prepared by United States and Canadian government employees, is copyrighted and protected under the U.S. copyright law. Under the Copyright Act of 1976, the term of copyright for materials registered by an organization is 75 years from the date first published. Before publishing any manuscript, SON requires that authors transfer full and complete ownership of any copyright to SON by signing a JON Page Charge/Copyright Form (.pdf). SON then registers the copyright. Subsequent use of published materials requires written permission from the SON and may be obtained by contacting the current Editor-in-Chief and state where and how the material will be used.
The author warrants that the article is an original work not published elsewhere in whole or in part, except in abstract form, and that the author has full power to make this grant. If portions of the article have been published previously, then the author warrants that permission has been obtained from the copyright holder and the author will submit a copy of the permission release with this copyright transfer form.
SON shall claim no proprietary right other than copyright. Authors and coauthors retain the right to revise, adapt, modify, or otherwise use all or part of the article in future works of the author(s), such as press releases, lectures, and reviews, provided that all such use is for the personal noncommercial benefit of the author(s). All patent rights are retained by the author(s).