C4 rice: a plant breeder's perspective
2007
Virk, P.S. | Peng, S., International Rice Research Institute, Los Baños, Philippines
Rice is one of the most important cereal crops in the world. Rice production has been increasing at a steady pace since the adoption of modern high-yielding rice cultivars. However, demand for rice continues to increase and so does the number of rice consumers. It is estimated that we need to produce an extra 200 million tons of rice by 2025 to meet the demand. To achieve this objective, we have to breed rice varieties with higher yield potential. Several breeding strategies are being employed at IRRI for developing rice varieties with higher yield potential, such as empirical breeding, heterosis breeding, ideotype breeding, and wide hybridization. Modern approaches such as the development of C4 rice for increasing the yield potential of rice are being investigated. To maximize the benefit of C4-ness in rice, breeders should target associated yield component traits. Furthermore, rice breeders can play a major role in transferring C4-ness (once available) from donor or engineered genotypes into commercially acceptable backgrounds.
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