Nukleinsyrefragmenter og fremgangsmåder til forögelse af lysin- og threonin-indholdet i fröene fra planter

摘要

A unique nucleic acid subfragment encoding lysine-insensitive aspartokinase (AK) is capable of causing a higher than normal production of threonine, when linked to a nucleic acid subfragment encoding lysine-sensitive dihydrodipicolinic acid synthase (DHDPS) higher than normal production of lysine. A further embodiment also includes a subfragment encoding antisense lysine ketoglutarate reductase. Nucleic acid sequences and chimeric genes are provided, as well as methods for increasing the lysine or threonine content of seeds of plants.