2024 Chilli Thrips Project Developing Host Resistance to Thrips in Chilli, a Multilateral Pre-Breeding Approach

A special project entitled “Developing Host Resistance to Thrips in Chilli, a Multilateral Pre-Breeding Approach” is launched under the APSA-WorldVeg Vegetable Breeding Consortium with the following eight deliverables:
  1. Understanding of the thrips population structure in Asia during five years. 
  2. A base population of nine tolerant sources of resistance provided to each member company for pre-breeding and line development activities. 
  3. Multi-location evaluation of the nine sources of resistance across Asia and information shared with all member companies, providing a basis for site/environmental-specific and durable thrips resistance in pepper. 
  4. Additional putative sources of resistance and tolerance to thrips provided to each member company to diverse thrips resistance pre-breeding and line development activities, allowing for sustained thrips resistance in the long term. 
  5. Two recurrent selection populations developed, one in Taiwan under controlled conditions and one in India under open field conditions, which will result in increased levels of resistance and provide sources for line development, pre-breeding, and other research activities.
  6. Pairwise genome-wide association studies to identify loci contributing to thrips resistance in chilli and development of molecular markers based on significant SNPs. 
  7. Segregating populations will be provided to the project member companies for validation of the GWAS results and use in the breeding program.
  8. Clear and effective communication about project status and findings, and molecular markers developed in the project will be provided to each member company for marker-assisted pre-breeding, facilitating efficient host-resistant hybrid development.

For detailed project activities, timeline and deliverables, please refer to the project full proposal, CLICK HERE


  • 1 August 2024 – 31 July 2029 (5 years)


  • 1 February – 31 May 2024


  • Minimum of 15 companies at 40,000 USD (8,000 USD/year) per company
  • Maximum of 30 companies at 20,000 USD (4,000 USD/year) per company


  • 1 - 30 June 2024


  • 1 - 31 July 2024

Please note that ONLY the active members of the 2024 APSA-WorldVeg Vegetable Breeding Consortium are eligible to participate in this project, and all project partners undertake to share the project cost equally. The actual budget per participating company will be calculated based on the final number of registered companies. If you are interested in joining the APSA-WorldVeg Vegetable Breeding Consortium Special Project on developing host Resistance to thrips in chilli:


Any questions related to this project, kindly contact Ms. Xiaofeng Li at xiaofeng@apsaseed.org or Ms. Mandy Lin at mandy.lin@worldveg.org