Performance of hybrids between weedy rice and insect-resistant transgenic rice under field experiments: implication for environmental biosafety assessment.

摘要: Transgene escape from genetically modified (GM) rice into weedy via gene flow may cause undesired environmental consequences. Estimating the field performance of crop-weed hybrids will facilitate our understanding potential introgression crop genes (including transgenes) populations, allowing for effective biosafety assessment. Comparative studies three strains and their with two GM lines containing different insect-resistance transgenes (CpTI or Bt/CpTI) indicated an enhanced relative hybrids, taller plants, more tillers, panicles, spikelets per plant, as well higher 1 000-seed weight, compared parents, although produced less filled seeds plant than parents. Seeds F(1) had germination rates seedlings which correlated positively weight. The demonstrated a generally parents in experiments. These findings indicate that can persist to introgress populations through recurrent crop-to-weed aid slightly increased fitness hybrids.