Basic mutant information
Mutant name	GMP-RNAi
Mutant/Transgenic	transgenic
Ecotype	Potato
Mutagenesis type	RNAi
(Semi-)Dominant/Recessive	recessive
Description	Transgenic potato plants were generated in which the GMPase cDNA was introduced in antisense orientation to the 35S promoter.
References	1: Keller R, Renz FS, Kossmann J Antisense inhibition of the GDP-mannose pyrophosphorylase reduces the ascorbate content in transgenic plants leading to developmental changes during senescence. Plant J. 1999 Jul;19(2):131-41
Mutated genes
GenBank ID	AF022716
Alias	GMP
Organism	Potato (Solanum tuberosum)
Description	GDP-mannose pyrophosphorylase (GMPase, EC 2.7.7.22) catalyses the synthesis of GDP-D-mannose and represents the first committed step in the formation of all guanosin-containing sugar nucleotides found in plants which are precursors for cell wall biosynthesis and, probably more important, the synthesis of ascorbate.
Phenotype information
Natural senescence Leaf color yellow