Molecular distribution of gypsy-like retrotransposons in cotton Gossypium Spp. ..

Abstract


Essam A. Zaki1* and Abdel Ghany A. Abdel Ghany2

PCR primers specific for conserved domains of the reverse transcriptase (RT) genes of gypsy-like retrotransposons amplified their corresponding gene in two Gossypium barbadense cultivars. Analysis with the FASTA software showed a high DNA sequence homology to pine, gypsy LTR-retrotransposon. Using the PCR product as a hybridization probe, gypsy-like retrotransposons were detected in wild type species of Gossypium, suggesting that gypsy-like retrotransposons are present in the Gossypium genome. This supports the view that gypsy-like retrotransposons are major components of plant genomes. Our results suggest gypsy-like retrotransposons have played a fundamental role in the shaping and evolution of the Gossypium genome

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