The majority of DGE tags were expected to match only one location in the genome, with the remaining tags matching duplicate genes, alternate transcripts, antisense strands, or repeated sequences [ 21].
However, analyses based on actual sequences have demonstrated that only 75% of the 17 bp tags occur only once in the human genome, with the remaining tags matching duplicated genes or repeated sequences [ 16].
It's reported that 99.8% of 21-base tags occur only once in human genome [ 13], while analyses based on actual sequence information from approximately 16,000 known genes suggest that >75% of 21-base pair tags are expected to occur only once in the human genome, with the remaining tags matching duplicated genes or repeat sequences [ 13].
Theoretical calculations show that >99.8% of 21 bp LongSAGE tags are expected to occur only once in large genomes such as the human genome, which is about twice the size of the B. napus genome, with the remaining tags matching duplicated genes or repeated sequences [ 9].
Although all probes used in this analysis are single copy in the B73 reference genome, it is, however, conceivable that some of the B>M probes match duplicated regions of the actual B73 genome that were either not sequenced or that were inadvertently collapsed into single copies during genome assembly.
Briefly, PlantGDB-provided component sequence files of sequences that were used to generate PUT sequence assemblies and subsequence files of near exact matching duplicate sequences that were excluded from the assembly process were aligned to the PUT sequence assemblies using the vmatch alignment tool (http://www.vmatch.de).
aAll rates before matching and duplicate record removal; UPMC, University of Pittsburgh Medical Center Health System.
Following gene ID matching and duplicated gene merging, 18503 genes were obtained.
Artificial duplicate frequency correlations (see Online Methods) match overall duplicate frequencies for all treatments except a single 10ng, poorly-amplified, adapter-containing Illumina library (Additional file 1: Figure S5-7), where 40% of the reads were predominantly artificial, high frequency duplicates (Additional file 1: Figure S8 and S9).
Remains of non-student victims were likely found at the dump in the state of Guerrero where the government said the 43 students were incinerated, and DNA samples authorities sent to be studied in Austria did not match a duplicate sample gathered by the EAAF, an "unusual" inconsistency in evidence gathering, the EAAF said.
A company spokesperson noted that photo and video removal is currently performed through exact duplicate matching only, while textual posts are also removed through a machine learning approach.
