Phylogenetic tree constructed with tilapia mtDNA CR sequences using the Kimura two-parameter distance model.

<p>Bootstrap values greater than 50 are shown. A1, B1, C1, C2, D1, E1, F1, G1, H1, I1, I2, J1, K1, L1, L2, and L3 are the representative mtDNA CR sequence from different fish populations. <i>O. niloticu</i> x <i>O. mossambic</i> (accession #AY833481), <i>O. mossambic</i> (accession #AY833459), <i>O. urolepis</i> (accession #AF296467), <i>O. aureus</i> (accession #AF328851), <i>O. niloticus</i> (accession #AF485083), <i>S. melanotheron</i> (accession #AF484717), and <i>T. rendalli</i> (accession #AF328854) are reference tilapia species, and the accession numbers were obtained from the NCBI database.