Emerging Avenues for Utilization of Exotic Germplasm

Area of Science:

• Plant breeding
• Genetics
• Agronomy

Background:

• Crop breeders have historically used genetic diversity to enhance crop performance.
• Current annual yield increases are insufficient to meet demands from population growth and climate change.
• Exotic germplasm contains significant genetic diversity for important crop traits but is underutilized.

Purpose of the Study:

• To review the challenges associated with utilizing exotic germplasm in crop improvement.
• To explore how emerging technologies can facilitate the use of exotic genetic resources.
• To propose solutions for overcoming barriers to incorporating exotic diversity into elite breeding programs.

Main Methods:

• Literature review of current breeding practices and technological advancements.
• Analysis of the genetic and agronomic factors contributing to the elite-exotic germplasm yield gap.
• Synthesis of information on high-throughput genotyping, phenotyping, and biotechnologies.

Main Results:

• A significant yield gap exists between elite and exotic germplasm, increasing the difficulty of introgression.
• Underutilization of exotic germplasm limits the potential for substantial crop performance gains.
• Advancements in high-throughput technologies offer new avenues for exploring and utilizing exotic genetic variation.

Conclusions:

• Overcoming challenges in exotic germplasm utilization is crucial for future crop improvement.
• Integrating exotic genetic diversity is essential for sustainable agriculture and global food security.
• Technological innovations are key to unlocking the potential of exotic germplasm for enhanced crop performance.