'Domesticability': were some species predisposed for domestication?

Area of Science:

• * Evolutionary Biology
• * Plant Genetics
• * Agricultural Science

Background:

• * Crop domestication is a coevolutionary process between humans and plants, leading to improved food resources.
• * Despite thousands of edible species, only a few are fully domesticated and provide the majority of global plant-based calories.
• * The reasons behind the limited number of fully domesticated species remain unclear.

Purpose of the Study:

• * To propose key genomic and phenotypic factors influencing the domestication of a limited number of plant species.
• * To explore differences in plasticity, trait linkage, and mutation rates as potential drivers of domestication.
• * To leverage current biological knowledge for identifying factors that make species amenable to domestication.

Main Methods:

• * Comparative analysis of plant genomes and phenotypes.
• * Investigation of genetic plasticity and its role in domestication.
• * Examination of trait linkage and mutation rates in wild and domesticated species.

Main Results:

• * Identified plasticity, trait linkage, and mutation rates as critical factors differentiating domesticated from non-domesticated species.
• * Proposed a framework for understanding the genomic basis of limited crop domestication.
• * Highlighted the potential for contemporary biological knowledge to explain domestication patterns.

Conclusions:

• * Differences in plasticity, trait linkage, and mutation rates are proposed as primary reasons for the limited number of domesticated crop species.
• * Further research into these factors can illuminate the domestication process.
• * This understanding will aid future efforts in crop domestication and improvement.