Rice is an important cereal crop and has become a model monocot for research into crop biology. Rice seeds currently feed more than half of the world's population and the demand for rice seeds is rapidly increasing because of the fast-growing world population. However, the molecular mechanisms underlying rice seed development is incompletely understood. Genetic and molecular studies have developed our understanding of substantial proteins related to rice seed development. Recent advancements in proteomics have revolutionized the research on seed development at the single gene or protein level. Proteomic studies in rice seeds have provided the molecular explanation for cellular and metabolic events as well as environmental stress responses that occur during embryo and endosperm development. They have also led to the new identification of a large number of proteins associated with regulating seed development such as those involved in stress tolerance and RNA metabolism. In the future, proteomics, combined with genetic, cytological, and molecular tools, will help to elucidate the molecular pathways underlying seed development control and help in the development of valuable and potential strategies for improving yield, quality, and stress tolerance in rice and other cereals. Here, we reviewed recent progress in understanding the mechanisms of seed development in rice with the use of proteomics.
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