RETROTRANSPOSONS IN THE GENOMES OF HIGHER PLANTS

Retrotransposons with high copy numbers and extensive sequence heterogeneity are widely distributed in higher plants. Retrotransposons can be divided into three major classes according to their structure organization and the amino acid sequences of the encoded reverse transcriptase. They are Ty1 copia like retrotransposons, Ty3 gypsy like retrotransposons, and LINE (long interspersed nuclear eleme…