LLCotton25 has been genetically engineered to contain the phosphinothricin acetyltransferase (PAT) encoding <i>bar</i> gene from <i>Streptomyces hygroscopicus</I> strain ATCC21705.  The PAT enzyme catalyzes the conversion of L-phosphinothricin, the active ingredient in glufosinate ammonium containing herbicides, to an inactive form, thus conferring tolerance to the herbicide.  Expression of the introduced gene was controlled in part by gene sequences from the plant virus, cauliflower mosaic virus (CaMV) and the <i>nos</i> terminator from <i>Agrobacterium tumefaciens</i>.  The transgenic variety was produced via <i>Agrobacterium</i>-mediated transformation of Coker 312 cotton.