NUCLEIC ACID FRAGMENTS AND METHODS FOR INCREASING THE LYSINE AND THREONINE CONTENT OF THE SEEDS OF PLANTS

摘要

A unique nucleic acid subfragment encoding lysine-insensitive aspartokinase(AK) is capable of causing a higher than normalproduction of threonine, when linked to a nucleic acid subfragment encodinglysine-insensitive dihydrodipicolinic acidsynthase (DHDPS) higher than normal production of lysine. A further embodimentalso includes a subfragment encoding antisenselysine ketoglutarate reductase. Nucleic acid sequences and chimeric genes areprovided, as well as methods for increasing thelysine or threonine content of seeds of plants.