Recording only the centroid coordinates rather than the entire image at each wavelength considerably reduces the data-storage requirements, and typically a 2 nm-wavelength scan with images recorded every 0.005 nm requires about 300 kb of disc space, as opposed to the 1 Gb or more needed for a sequence of uncompressed images.
> -wrap-foot> In this study, we introduced Fiona, a new algorithm for the correction of sequencing errors without the need for a reference sequence.
Researchers use so-called "shotgun" sequencing approaches (figure 2) to circumvent the need for a priori sequence information through the use of molecular manipulations of nucleic acids to attach known sequences for priming of sequencing reactions to unknown sequences.
We first introduced a G11R mutation into a peptide lacking the distal sequence (ΔKRHR G11R, 14), which we previously found to be inactive, and as anticipated found that the mutation to the local sequence rescued activity and relaxed the need for a distal sequence (column 3, Figure 2D).
These issues illustrate the value of combining different sequencing strategies to give a more comprehensive survey of the chromosome, and highlight the need for a reference sequence assembly of the entire wheat genome, which has so far only been achieved for 3B [ 17].
To complain about "The Triplets of Belleville" may be churlish, for such an avalanche of oddness does not land on us every week, and you have to revere any director who, when faced with the need for a dream sequence, bestows it upon a slumbering dog.
Examples such as this enforce the need for a genome sequence to reliably detect novel miRNAs.
In this paper, we use novel methods to analyze resequencing data from four common minke whales to reveal important insights into their evolutionary history without the need for a reference sequence.
Factors such as the need for a reference sequence and the assumption of a monomorphic sample mean that the consensus approach is limited in organisms for which we lack a reference genome, in outbred diploid samples, bulked population data or analysis of metagenomes.
The need for a tag sequence at the 5′ of the random primer is related not only to the retrieval of the strand information, but also to the protocol-specific step of ligation of single-stranded cDNA molecules into ~ 20 kb long concatenamers.
