Most plant foods contain lower quality proteins because of one or more essential amino acids being low. Efforts to improve the protein and the content of essential amino acids in the grain used a variety of approaches from a basic breeding technique to genetic engineering. In genetic engineering research, seed-specific promoters are typically used to target the expression of the trait in the seed, i.e., in the case of high lysine corn cultivar LY038. In the past 5 years, mutational breeding has been focused on improving both lysine and crude protein content in the rice grain. The line with the most improved lysine content (05PWLS100115) has a moderate yield of 5,685 lb/A. However, the line with a moderate increase in lysine content (07PCC201570; 32.21%) has an excellent yield of 8,029 lbs. /A. The mutational breeding technique used will be discussed, together with genetic engineering approaches previously done by others.

Review of mutational breeding and genetic engineering approaches to the development of high protein content in the grain

244th National Meeting (2012)

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