Plant domestication and agricultural ecologies

Area of Science:

• Archaeobotany and crop genomics
• Human-plant co-evolutionary studies

Background:

• Plant life shapes animal environments and food webs, including early human hunter-gatherer societies.
• Human societies transformed vegetation through plant domestication and agriculture, leading to increased populations and technological advancements.

Purpose of the Study:

• To synthesize recent research on plant domestication and its impact on human societies.
• To understand the complex co-evolutionary relationships between humans and plants during domestication.

Main Methods:

• Analysis of preserved plant remains (archaeobotany).
• Genomic studies of crops, including ancient DNA.
• Identification of general domestication pathways and convergent evolution patterns.

Main Results:

• Plant domestication involved protracted co-evolution, with adaptations often being unintended outcomes of human economies.
• Domestication occurred independently in numerous global regions, involving diverse crops and cultures.
• Convergent evolution was observed across different crop types (seed, tuber, fruit).

Conclusions:

• Past agricultural diversity is crucial; genetic diversity can erode but also be restored.
• Agricultural ecosystems have seen declines in diversity, with lost crops, but also renewal through trade and mobility.
• Understanding historical human-plant interactions provides insights for contemporary agricultural sustainability.