OsPT4 Antibiotic marker-free transgenic rice with over-expressed high affinity phosphate transporter OsPT4 gene from Oryza sativa

摘要

TECHNICAL FIELD The present invention relates to a method of transforming plants, and more particularly, to a transgenic rice in which OsPT4, a high-affinity phosphate carrier gene derived from rice, is introduced, and an antibiotic selection marker is removed, and a method for producing the same. Since the transgenic rice of the present invention does not contain an antibiotic selection marker, commercial use is superior to other transgenic rice by alleviating the concern about safety of consumers on GM crops. In addition, OsPT4 used in the present invention is a highly-phosphorylated phosphoric acid transporter expressed in rice when it is deficient in phosphoric acid. Thus, overexpression of the gene promotes the uptake of phosphoric acid, which is one of the essential nutrients required by plants, .