Polymerase chain reaction cloning of rbcL from leaves of C. oleifera and its recombinant strains. (A) Lane 1: the PCR amplification fragment of rbcL with an expected band at 1,522 bp for rbcL amplified by PCR. (B) Lanes 1 and 2 represent the positive recombinant strains. M represents 100 bp plus DNA ladder.
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