Plant domestication: setting biological clocks.

Area of Science:

• Plant biology
• Genetics
• Agriculture

Background:

• Crop domestication has significantly altered plant developmental and circadian clocks.
• Modern crops exhibit increased productivity and adaptability but reduced genetic variability and abiotic stress tolerance.
• Metabolic timekeeping in plants likely underwent substantial restructuring during domestication.

Purpose of the Study:

• To investigate the role of organ-specific timing in wild crop relatives for environmental stress recognition.
• To explore the potential of biological clock connections, established during domestication, for improving crop traits.

Main Methods:

• Comparative analysis of developmental and circadian clocks in crops and their wild relatives.
• Investigation of metabolic timekeeping mechanisms.
• Exploration of genetic variation related to biological clock connections.

Main Results:

• Wild crop relatives with contrasting organ timings can recognize environmental adversities more rapidly.
• Domestication has led to a restructuring of plant metabolic timekeeping.
• Connections among biological clocks were established during plant domestication.

Conclusions:

• Contrasting organ timings in wild relatives are crucial for rapid environmental stress detection.
• Harnessing the genetic variation in biological clock connections from domestication can enhance crop resilience and yield.