Basic mutant information
Mutant name	old3-1
Mutant/Transgenic	mutant
Ecotype	Ler
Mutagenesis type	EMS
(Semi-)Dominant/Recessive	recessive
Description	old3-1(Gly162 to Glu162); early senescence
References	1: Jing HC, Sturre MJ, Hille J, Dijkwel PP Arabidopsis onset of leaf death mutants identify a regulatory pathway controlling leaf senescence. Plant J. 2002 Oct;32(1):51-63 2: Shirzadian-Khorramabad R, Jing HC, Everts GE, Schippers JH, Hille J, Dijkwel PP A mutation in the cytosolic O-acetylserine (thiol) lyase induces a genome-dependent early leaf death phenotype in Arabidopsis. BMC Plant Biol. 2010;10:80
Mutated genes
Locus name	AT4G14880
Alias	OLD3/OAS-A1
Organism	Arabidopsis thaliana
Description	OAS-A1 encodes a cytosolic O-acetylserine (thiol) lyase.O-acetylserine (thiol) lyase (OAS-TL) catalyses the final step of cysteine biosynthesis
Phenotype information
Others Chlorophyll content low Leaf color yellow Marker gene expression yes