A genome-wide view of transcription factor gene diversity in chordate evolution: less gene loss in amphioxus?
Previous studies of gene diversity in the homeobox superclass have shown that the Florida amphioxus Branchiostoma floridae has undergone remarkably little gene family loss. Here we use a combined BLAST and HMM search strategy to assess the family level diversity of four other transcription factor superclasses: the Paired/Pax genes, Tbx genes, Fox genes and Sox genes. We apply this across genomes from five chordate taxa, including B. floridae and Ciona intestinalis, plus two outgroup taxa. Our...Expand abstract
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