Introduction Oryza alta Swallen is an allotetraploid perennial wild rice and contains CCDD
genome, which may harbor favorable genes for the enrichment of genetic resource. Methods …

Following domestication, rice cultivars have been spread worldwide to different climates and
have experienced selection pressures to improve desirable traits. This has resulted in …

Rice is a food crop of global importance, cultivated in diverse agro-climatic zones of the
world. However, in the process of domestication many beneficial alleles have been eroded …

Rice heterosis has played a significant role in improving rice yields in China since the
1970s. The utilization of heterosis between the indica and japonica subspecies of rice is …

The landraces preserved by indigenous worldwide exhibited larger variation in the
phenotypes and adaption to different environments, which suggests that they comprise rich …

Several challenges need to be met for sustainable rice production in China and to reduce
the gap between potential yield and yield under large-scale production:(1) the increasingly …

Background Asian rice (O ryza sativa L.) has been a model plant but its cultivation history is
inadequately understood, and its origin still under debate. Several enigmas remain …

Weedy rice (Oryza sativa f. spontanea) is considered a feral crop wild relative (CWR) of
cultivated rice (O. sativa) and has become common weeds of rice fields globally. Weedy rice …

Societal Impact Statement Weedy plants are a major constraint on agricultural productivity.
Weedy rice is a weed that invades rice fields worldwide and is responsible for reductions in …

Background: Rice is the staple food for more than half of the world's population. Rice
cultivation needs expansion to meet the increasing food demands across the globe. Genetic …