The Environmental Protection Authority (EPA) has just clarified that certain organisms, known as null segregants, are not considered genetically modified organisms. Null segregants are the offspring of genetically modified organisms, but do not contain .
<p style="text-align:justify">In southern China, the genetically improved slash pine (<em><em>Pinus elliottii</em></em>) plays a crucial role in timber and resin production, with new shoot density being a key growth trait.</p>