| genetic diversity and origin of weedy rice (oryza sativa f. spontanea) populations found in north-eastern china revealed by simple sequence repeat (ssr) markers. | weedy rice (oryza sativa f. spontanea) is one of the most notorious weeds occurring in rice-planting areas worldwide. the objectives of this study are to determine the genetic diversity and differentiation of weedy rice populations from liaoning province in north-eastern china and to explore the possible origin of these weedy populations by comparing their genetic relationships with rice varieties (o. sativa) and wild rice (o. rufipogon) from different sources. | 2006 | 17056615 |