maize-architecture
Maize architecture refers to the overall structural organization of the plant, including traits such as plant height, leaf angle, branching pattern, and root system configuration. Understanding these architectural traits is crucial for plant science because they directly influence light capture, nutrient uptake, and planting density, all of which impact crop yield and resilience. Research in this area helps identify the genetic and developmental mechanisms that can be leveraged to breed more productive and climate-resilient crop varieties.
open_in_new WikipediaPubMed · 2026-07-09
Scientists identified two genes that control how corn plants branch and grow, confirming one gene increases tassel branching while another limits ear shank length. This work gives breeders precise genetic targets to engineer higher-yielding, better-shaped corn plants.
830 significant DNA markers were identified across four plant architecture traits in 206 maize inbred lines using over 1.19 million SNPs.
ZmARM5 positively regulates tassel branch number: corn plants with altered ZmARM5 activity showed measurable changes in how many tassel branches they produced.
ZmNRT1 negatively regulates ear shank length: suppressing or enhancing this gene shifted the length of the stalk segment connecting ear to main stem.
