Traits and phenotypes: Marker gene (MG)

Marker gene (MG)

Marker genes are traits and phenotypes that are inserted in order to more easily identify individual plants in which genetic modification has taken place, often before the intended genetic modification would be expressed. Most of these markers are selectable, including the use of antibiotic resistance markers.

GM events sorted by trait/phenotype

Name GM events
antibiotic resistance marker
ARMG hpt
ARMG htpII poplar with multiple traits and silenced genes
ARMG hygromycin B
ARMG nptI poplar with reduced stature and ARMGs nptI and nptII (OSU)
ARMG nptII
chromogenic marker
geneticin resistance Blight resistance American chestnut with geneticin-resistance marker (GMTRee-2169)
green fluorescent visual marker
marker
marker system paradise apple with marker system
normal / control construct Poplars with multiple traits (GMTree-2189)
pollen visual marker rhododendron with multiple markers: pollen visual, green fluorescence, visual markers and ARMG nptII
scorable marker lepidoptera resistant walnut with synthetic insecticidal protein and scorable and selectable markers (UC Davis)
selectable marker (E. coli) lepidoptera resistant walnut with synthetic insecticidal protein and scorable and selectable markers (UC Davis)
selectable marker (β-glucuronidase)
selective marker
visual marker