alexa Mutant gene that changes protein composition and lysine content of maize endosperm.
Social & Political Sciences

Social & Political Sciences

Journal of Anthropology Reports

Author(s): Edwin T Mertz, Lynn S Bates, Oliver E Nelson

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Preliminary tests have shown that the endosperms of maize seeds homozygous for the opaque-2 mutant gene have a higher lysine content than normal kernels. As a critical test, a backcross progeny was divided into opaque-2 and normal kernels, the endosperms separated, and the amino acids determined. The opaque-2 endosperms had a different amino acid pattern and 69 percent more lysine than the normal seeds. The major reason for these changes is the synthesis of proteins with a greater content of basic amino acids in the acid-soluble fraction of the mutant endosperm. This is accompanied by a reduction in the ratio of zein to glutelin.

This article was published in Science and referenced in Journal of Anthropology Reports

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