A Tightly Regulated Genetic Selection System with Signaling-Active Alleles of Phytochrome B
Author(s) -
Wei Hu,
J. Clark Lagarias
Publication year - 2016
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.16.01345
Subject(s) - biology , selectable marker , arabidopsis , gene , arabidopsis thaliana , allele , genetics , transgene , phenotype , selection (genetic algorithm) , phytochrome , genetically modified crops , mutant , botany , red light , artificial intelligence , computer science
Selectable markers derived from plant genes circumvent the potential risk of antibiotic/herbicide-resistance gene transfer into neighboring plant species, endophytic bacteria, and mycorrhizal fungi. Toward this goal, we have engineered and validated signaling-active alleles of phytochrome B (eYHB) as plant-derived selection marker genes in the model plant Arabidopsis (Arabidopsis thaliana). By probing the relationship of construct size and induction conditions to optimal phenotypic selection, we show that eYHB-based alleles are robust substitutes for antibiotic/herbicide-dependent marker genes as well as surprisingly sensitive reporters of off-target transgene expression.
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