2007) identified additional regions of high conservation.
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.
“We found old pika fecal pellets buried in sediment in nearly every patch of habitat we searched,” UCSC researcher and lead author Joseph Stewart said.
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.
The resulting loci are the highly conserved that we target for use as molecular markers. 2009) probes that are similar in sequence to the UCE loci we are targeting. Here's a list of UCE-related talks at various conferences.
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.