First we selected from each group of reads (U, R, and M) those that have a high chance of finding a good quality alignment with the chromosomal regions of interest by requiring that they share at least a common 12-mer with the region, using the tagger tool from the fetchGWI software package.
Hence, the natural sequence is optimized toward a given coding content and its high quality alignment with the GenBank sequence is not due to chance.
The HD DBDs were aligned using MAFFT (Katoh et al., 2005), which gave higher quality alignments, with fewer gaps, than other programs.
A cluster C j consists of those reads in R having a high-quality alignment with at least one protein having taxon j.
Then, the coverage (number of matches/full length of transcript sequence) of each alignment was calculated, and the low-quality alignments with coverage of less than 70% were removed.
To compute the contig coverage in seed-reads, we filtered out, from the initial BLAT alignment, Illumina reads that aligned on several contigs and/or with low quality alignment (less than 50% of read length or less than 90% of correctly aligned bases).
We removed short reads mapped with quality alignment scores of zero (Q0), which correspond to reads mapped to two or more locations on the reference genome with identical quality alignment scores.
Genes were aligned with databases to obtain the annotation corresponding to homologs, with the highest quality alignment result chosen as the gene annotation.
To check how our method performs on more appropriate targets, we used the 20% filtering to select only the 17 targets with the highest quality alignment.
To assemble a sequence matrix for phylogenetic inference, each protein cluster was aligned using ClustalW (Larkin et al., 2007) (default parameters), trimmed for high-quality alignment blocks with GBlocks (Castresana, 2000) (default settings), sorted by species name, and concatenated.
In the absence of better data, employers look to specific degree programs or institutions as a proxy for quality and alignment with workplace needs.
