Abstract: An EPSP synthase (5-enolpyruvylshikimate-3-phosphate synthase) with high glyphosate resistance and a nucleotide sequence encoding the synthase are disclosed. The gene encoding the EPSP synthase has low homology with the reported EPSP synthase. A transgenic plant obtained by the expression of the gene in plant has an increased resistance to glyphosate after experimental confirmation.

Abstract: A gene comprising the nucleic acid sequence of SEQ ID NO:1 and another gene comprising the nucleic acid sequence of SEQ ID NO:2, the latter being artificially synthesized according to plant preferred codons. Both genes encode a protein having the amino acid sequence of SEQ ID NO:3. Also provided are recombinant vectors containing each of the genes and host cells transformed with the recombinant vectors. The host cells can be prokaryotic cells [[and]] or eukaryotic cells. The transgenic plants comprising the gene having the nucleic acid sequence of SEQ ID NO:2 show improved salt and drought tolerance after the [[said]] gene is expressed in the transgenic plants.

Abstract: An EPSP synthase (5-enolpyruvylshikimate-3-phosphate synthase) with high glyphosate resistance and a nucleotide sequence encoding the synthase are disclosed. The gene encoding the EPSP synthase has low homology with the reported EPSP synthase. A transgenic plant obtained by the expression of the gene in plant has an increased resistance to glyphosate after experimental confirmation.

Abstract: Provide a nucleotide coding sequence and another nucleotide coding sequence artificially synthesized according to biased codons of plant. Construct recombinant vectors containing the genes as above and transform them into host cells including prokaryotic cells and eukaryotic cells. It is confirmed that the resulting transgenic plant has improved salt and drought tolerance after the said genes are expressed in the plant.