As their name implies, ultraconserved elements (UCEs) are highly conserved regions of organismal genomes shared among evolutionary distant taxa - for instance, birds share many UCEs with humans.
Frequently asked questions » Faircloth BC, Branstetter MG, White ND, Brady SG. Target enrichment of ultraconserved elements from arthropods provides a genomic perspective on relationships among Hymenoptera. All probes are available under a CC0 license, thus freely available for you to use, without restriction.
We designed probes from UCEs by including flanking sequence from chickens.
Capable of demultiplexing hundreds of sequence tagged libraries at once. Get splitaake » A program for automated cleaning of fastq files from sequencing.
Removes adapter contamination using scythe and trims reads for quality using sickle.
Our main code repository for analyzing data collection from UCE loci.
Contains command-line applications for assembling contigs from sequence data, finding which contigs align to UCEs, aligning UCE contigs, and preparing data for downstream analysis in mrbayes, raxml, and cloudforest. Get phyluce » A program for demultiplexing massively parallel sequencing reads tagged with edit distance or Hamming distance sequence tags - tailored to edit distance tags (see Tags).
We have discovered (see Citations) that we can collect data from UCEs and the DNA adjacent to UCE locations (flanking DNA), and that these data are useful for reconstructing the evolutionary history and population-level relationships of many organisms. 2004) and we generally assume that UCEs must be important by the very nature of their near-universal conservation across extremely divergent taxa.
Because UCEs are conserved across disparate taxa, UCEs are also That's an extremely good question, and one to which we do not entirely know the answer (Dermitzakis et al. UCEs have been associated with gene regulation (Pennachio et al. However, gene knockouts of UCE loci in mice resulted in viable, fertile offspring (Ahituv et al.
2007), suggesting that their role in the biology of the genome may be cryptic.
You can identify UCEs in organismal genome sequences by aligning several genomes to each other, scanning the resulting genome alignments for areas of very high (95-100%) sequence conservation, and filtering on user-defined criteria, such as length (e.g., Bejerano et al. If you want to use these regions as genetic markers, it is best to remove UCEs that appear to be duplicates of one another which we loosely define as being in more than one spot within each genome that you aligned.
We used these probes for our analysis of early diverging teleosts.