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Fig. 3. Neighbour-joining phylogenetic tree of the dromedary germline VH and VHH segments. The tree was constructed by using clustalW, phylip packages with 1000 replicates for Bootstrap of nucleotide sequences encoding the VH/VHH portions. Filled and open circles denote a VH and VHH member, respectively. The two filled rectangles indicate pseudogenes. VHH subfamilies are indicated.
