Figure 6From: Sequencing and analysis of the gastrula transcriptome of the brittle star Ophiocoma wendtiiRarefaction curves for sea urchin and brittle star. The steeper initial slope for the sea urchin curve indicates matches to a significant number of KEGG clusters even with many fewer sequences. The brittle star curve rises more gradually, but becomes asymptotic at the right, indicating that the sequencing captured most of the genes present in the gastrula transcriptome. If the two organisms express roughly the same number of genes at equivalent developmental stages, then the rarefaction curves indicate that comparison of these two data sets is indeed meaningful.Back to article page