Fig. 5
From: Evidence against tetrapod-wide digit identities and for a limited frame shift in bird wings
A conserved core set of digit patterning genes in amniotes. a ANOVA comparing all combination of digits within limbs. The number of genes identified as differentially expressed at a FDR threshold of 0.05 are noted in each panel as “genes.” The number of transcription factors among these are noted as “TF.” b Venn diagram showing one-to-one orthologous transcription factor genes that are differentially expressed across mouse, alligator, and chicken limbs. c HCA and PCA show these genes can recover patterns of digit correspondence similar to analyses of limb patterning genes and transcription factors. Alligator and chicken illustrations reproduced with permission by Michael Richardson. Anolis illustration by Sarah Werning without modification (license [https://creativecommons.org/licenses/by/3.0/])
