Long terminal repeat retrotransposons of

A new data-mining program, LTR_STRUC, was used to mine the GenBank rice (Oryza sativa) database as well as the more extensive Monsanto rice dataset for long terminal repeat retrotransposons. Each of the major clades of rice LTR retrotransposons is more closely related to elements present in other species than to the other clades of rice elements, suggesting that horizontal transfer may have occurred.