Figure 1From: Sequencing of the needle transcriptome from Norway spruce (Picea abies Karst L.) reveals lower substitution rates, but similar selective constraints in gymnosperms and angiospermsDistribution of length and coverage of PUTs. Histogram of length (left) and number of reads per PUT (right). To aid visualization both PUT length and read count values were log10 transformed. Note that all PUTs shorter than 150bp were excluded from the histograms.Back to article page