TRANSFER OF GLUCANASE GENE TO RESIST LATE BLIGHT DISEASE IN POTATO (Solanum tuberosum L.)

HEBA S. SHEBL, E. A. METRY, M. A. RASHED, M. A. ABD EL-HAFIEZ, I. M. ISMAIL

Abstract


Potato late blight is a pandemic disease caused by the highly virulent (Phytophthora infestans) fungus. The regeneration capacity was done among three tested potato cultivars (Spunta, Diamont and Desiree). Two different types of explants (inter-node and leaf) were cultured for calli induction and plant regeneration .The highest value of leaf explants was for Desiree cultivar (80%), which induced from developed callus in the 2,4-D medium. The best value of maximum shoot regeneration was also for Desiree cultivar in the BA, IAA and GA3 media from leaf which proved to be more effective. Then cloning of glucanase gene in pRI plasmid which carrying kanamycin resistance (nptII) gene was perfomed and followed by transformation in Agrobacterium tumefaciens LBA4404 strain which used for plant transfection. Nucleotide and amino acid sequences of transformed Agrobacterium were analyzed. The putative transgenic plantlets genomes and cDNA of the isolated RNA for glucanase gene.

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References


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