dormancy-regulation
Dormancy regulation refers to the molecular and physiological mechanisms that control when seeds or buds pause growth and later resume it in response to environmental cues like temperature and light. Understanding these pathways is crucial for plant science because dormancy timing directly influences crop germination uniformity, seasonal growth cycles, and yield stability. Insights into the genes and hormonal signals governing dormancy also help researchers develop cereal varieties better adapted to changing climate conditions.
open_in_new WikipediaOpenAlex · 2026-07-28
Researchers are using a model grass plant to decode why wheat and barley lost the ability to stay dormant as seeds, a trait that helps grains survive on the plant without sprouting prematurely. By identifying the genetic switches controlling dormancy, they hope to restore this protection in crops and prevent costly pre-harvest losses.
Seed dormancy, the trait delaying germination, has been largely eliminated from major crops like wheat and barley through centuries of artificial selection.
Brachypodium distachyon, a wild model grass, retains strong and genetically diverse seed dormancy, making it ideal for studying the regulatory mechanisms lost in crops.
The project combines next-generation genetic mapping to discover novel dormancy regulators with CRISPR mutagenesis to confirm their function.
