Essential genes in Erigeron canadensis

Erigeron canadensis, commonly known as horseweed or Canadian horseweed, is a globally distributed annual weed that is highly problematic in conservation tillage systems (Heap, 2024). The term "Essential genes in Erigeron canadensis" refers to the set of genes within its genome that are indispensable for the plant's survival and development (Zhang et al., 2009). These genes encode various enzymes and proteins that are the primary molecular targets for herbicides; for instance, the 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme is the essential target of glyphosate, while acetolactate synthase (ALS) is the target for several other herbicide classes (Duke & Powles, 2008). Identifying these essential genes is a critical component of weed science, particularly for understanding the mechanisms of evolved herbicide resistance, such as gene amplification or target-site mutations (Sammons & Gaines, 2014). However, "Essential genes" is a broad genomic classification rather than a specific, singular molecular target like a receptor or enzyme (NCBI, 2024). Consequently, while the individual proteins encoded by these genes are valid targets for agrochemicals, the collective term is not a standard nomenclature for a single drug or herbicide target.

Other names

Horseweed essential genesConyza canadensis essential genesEssential genome of Erigeron canadensis

Inhibition of vital plant enzymes and metabolic pathways, such as the shikimate pathway or branched-chain amino acid biosynthesis, which are encoded by essential genes.