Hello Igor,
Thank you for your question about an update to the C. elegans genome on the UCSC Genome Browser. Our funding mandates that we focus on vertebrate genomes, so we have been unable to pursue an update to C. elegans. You are welcome to create an assembly hub, however, as noted in this mailing list question: https://groups.google.com/a/soe.ucsc.edu/d/topic/genome/eZ_wBLH66I0/discussion. Assembly hubs are a tool we recently developed to allow users to display their own genome assemblies and accompanying annotation in the UCSC Genome Browser.
For more information on creating assembly hubs, please review the track hub help pages at http://genome.ucsc.edu/goldenPath/help/hgTrackHubHelp.html and the assembly hubs wiki page at http://genomewiki.ucsc.edu/index.php/Assembly_Hubs.
I hope this is helpful. If you have any further questions, please reply to gen...@soe.ucsc.edu or genome...@soe.ucsc.edu. Questions sent to those addresses will be archived in publicly-accessible forums for the benefit of other users. If your question contains sensitive data, you may send it instead to genom...@soe.ucsc.edu.
--
Jonathan Casper
UCSC Genome Bioinformatics Group
--