Expanded analysis relating to whole-genome duplication:

• homeobox gene families/clusters that are often syntenic (Hox, NK1, NK2, IRX, SINE, HRO+Isl) are now investigated phylogenetically
• self-synteny analysis in the vein of an Oxford grid
• looked into r2_g3735 gene model, which seems to receive support from transcriptomic data
• the (fruitless) AbdA search now receives broad chelicerate support; transcriptomic investigation confirms absence