Article
The A and B loci in tobacco regulate a network of stress response genes, few of which are associated with nicotine biosynthesis.
Plant molecular biology - 1 Mar 2006
Kidd Sarah K, Melillo Amanda A, Lu Rong-He, Reed Deborah G, Kuno Norihito, Uchida Kenko, Furuya Masaki, Jelesko John G
Abstract excerpt
Nicotine biosynthesis in Nicotiana tabacum is under genetic control by the A and B loci. Plants containing semi-dominant mutations at both the A and B loci (i.e. aabb genotype) have lower nicotine levels, reduced nicotine biosynthetic enzyme activities, and reduced mRNA levels of the corresponding biosynthetic genes. The A and B loci therefore appear to be coordinate regulators of several nicotine biosynthetic...
Topics
- Acetates
- Alkaloids
- Base Sequence
- Cyclopentanes
- Gene Expression Regulation, Plant
- Genes, Plant
- Genes, Regulator
- Genotype
- Molecular Sequence Data
- Mutation
- Nicotine
- Oxylipins
- Plant Growth Regulators