Phenotype Gene symbol Reference CRS Cdx2 [25] CRS Cdx4 [22] CRS Brachyury [29] CRS Wnt3a [11] CRS Cyp26a1 [16] CRS Hoxb13 [22] CRS Hoxc13 [22] VACTER Shh [10]     [32] CRS Ptf1a [31]     [30] CRS Acd [18] CRS Pcsk5 [21]

Table 1: List of CRS model mutant mice.