Figure 4From: Next generation sequencing and analysis of a conserved transcriptome of New Zealand's kiwiDistribution of kiwi genes under varying levels of selective constraint. The strength of selection was determined by the ratio of divergence at nonsynoymous positions (dN) to the divergence at synonymous sites (dS). The divergence (substitutions per site) was estimated for 1,543 kiwi-chicken orthologus gene pairs using PAML [31].Back to article page