It has been shown, however, that this may reduce the measurement precision compared to a situation with matched lengths [32].
Third, 16S reads containing possible chimaeric sequences that had BLAST match lengths of < 90% with reference sequences in the database were removed.
From the URL, users retrieve a summary of the search with the number of sequences that had matches with the database selected, an excel file containing the best match, any known function, match organism, match length, percent identity, expectation value, alignment length, and start and stop alignment positions.
The following criteria were used: the identity had to be greater than or equal to 92% match length, greater than or equal to 80% of the read length and a match score or match length greater than 250 bp.
In other studies, lines of hamsters that differ in their free-running cycle length were found to differ in the development of cardiac and renal pathologies; animals housed in a light-dark cycle that did not match their endogenous cycle length had to undergo re-setting of their clock on a daily basis to maintain synchrony to the lighting cycle [ 101, 102].
Note that although matched sequences mostly have different lengths, our training process does not require using an alignment procedure such as DTW, unlike GMM-based methods do.
We found that the differences between matching sequences that have unequal lengths were predominantly (98.7%) located at the N-terminal part.
Our results also showed that 79% of unigenes over 500 bp in length had BLAST matches, whereas only 30% of unigenes shorter than 300 bp did.
85% of our contigs and singletons over 800 bp in length had BLAST matches, whereas only 5% of contigs and singletons shorter than 250 bp did.
fuscidiscus.> Our results showed that approximately 95% of unigenes over 1,000 bp in length had BLAST matches against the Nr database, whereas only 41% of unigenes with lengths shorter than 1,000 bp generated BLAST matches (Additional file 4A).
