Generation of clec14a mutants by TALEN-mediated genome editing. a Wild-type and clec14a^ci15 mutant sequence showing the binding regions for TALE nucleases and the 10 bp deletion in the clec14a mutants which includes the deletion of HhaI restriction site used for genotyping. b A diagram of Clec14a protein sequence which includes C-type lectin and transmembrane (TM) domains. clec14a^ci15 mutation is predicted to cause a frameshift early in the protein coding sequence starting at the amino acid 44 and would lead to a premature stop codon. c, d DNA sequencing chromatogram shows a 10 bp deletion (boxed-in wild-type sequence) in the cDNA of clec14a mutants. d, e In situ hybridization analysis for clec14a expression in wt embryos (d) and clec14a mutants (e) at 24 hpf. Note a significant reduction of clec14a expression in clec14a mutant embryos. The experiment has been replicated twice; the combined number of embryos analyzed and showing the phenotype is shown in the lower right corner