To map the DGE reads, the sequenced raw data were filtered to remove adaptor sequences, low-quality sequences (reads with unknown sequences 'N'), empty reads.
Average DNA lengths of mapped sequences reads were 94.5, 102.2 and 76.9 bp, respectively.
The split_libraries.py script was used to remove low quality (Phred <25) sequences, reads <200 bp or >500 bp in length, primers and barcodes, and to assign each read to its respective sample.
Clean reads were obtained using the software FASTQC, which removed reads containing adapter sequences, reads with poly-N sequences (in which the percentage of unknown sequences "N" was greater than 10%), and low quality reads (threshold quality score < 20, the percentage of read bases whose error rate was less than 1%).
Our new result concerning strong summability of Nörlund means with non-increasing sequences reads as follows.
Sequences reads with an average quality score lower than 25, ambiguous bases, homopolymer > 7 bases, containing primer mismatches, or reads length shorter than 150 bp were removed.
We processed both Sanger and 454 pyrosequencing sequences reads in a hybrid assembly.
To avoid repeat associated sequences, reads with more than five total matching positions in the genome were discarded.
Sequences reads generated using the Sanger method and by the 454 pyrosequencing were combined and assembled using a hybrid assembly approach developed at the JCVI [18].
However, as observed in other studies, a significant proportion of sequences reads could be identified as being related to known sequences of bacterial, archaeal and eukaryotic origins [33], [34].
However, while many of these splicing events are between exons that are relatively close on genome sequences, reads generated by RNA-Seq are not limited to alternative splicing between close exons but occur in virtually all splicing events.
