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. 2011 May 31;6(5):e17107. doi: 10.1371/journal.pone.0017107

Figure 4. Use of canine-human comparative genomics and expression analysis to improve annotation of canine probesets.

Figure 4

Canine brain had the greatest number of probesets without a gene symbol or gene name assigned. As proof-of-concept, these probesets within the top 50 canine brain selective list were re-mapped and underwent manual curation to link transcript information to expression data. Heatmap representing expression values for NetAffx™ unassigned canine probesets (NA) as well as LOC designated probesets in the top 50 brain selective expression list. Following manual curation the newly assigned gene symbols (curated gene symbol) are shown. Once these probesets were mapped to a known transcript, all other canine probesets for that transcript on the canine version 2.0 array were subsequently re-mapped and their relative expression is shown for comparison. In cases where the curated gene symbol is represented by (NA), this denotes that the probeset mapped unambiguously to an intronic region. Red represents increased and green decreased log-fold expression compared to the mean of all other tissues.