| Abstract: | A 1 207 bp cDNA fragment (PsG6PDH) was amplified by RT-PCR from cold-induced total RNA of the freezing-tolerant P. Suaveolens, using primers based on the highly conserved region of published plant glucose-6-phosphate dehydrogenase (G6PDH) genes. The
sequence analysis showed that PsG6PDH coding region had 1 101 bp and encoded 367 predicted amino acid residues. Moreover, the nucleotide sequence of PsG6PDH showed 83%, 82%, 79%, 79% and 78% identity, and the derived amino acid sequence shared 44.2%, 44.7%, 42.0%, 40.5% and 43.9%
identity with those of the Solanum tuberosum, Nicotiana tabacum, Triticum aestivum, Oryza sativa and Arabidopsis thaliana, respectively. The results show that PsG6PDH is a new member of G6PDH gene family and belongs to the cytosolic G6PDH gene. This is the first report on cloning of the
G6PDH gene from woody plants.
Supported by the National Natural Science Foundation of China (Grant No. 30271093)] |
