Once the transgenic tomatoes are commercialized in the U.S., it is likely that the seeds will be disseminated to the south, either by birds carrying seeds over the border or growers planting seed purchased in this country.
(the transgenic tomatoes; are commercialized; L:in the U.S.) (seed; purchased; L:in this country) (birds; carrying; seeds; over the border or growers) (growers; planting; seed purchased in this country)
the transgenic tomatoes seed birds growers
are commercialized purchased carrying planting
L:in the U.S.
L:in this country
seeds over the border or growers
seed purchased in this country