Overview of CIAT Vision on WUE & NUE
GRiSP Workshop for Rice Breeders in Latin
America and the Caribbean
Michael Gomez Selvaraj and Manabu Ishitani
Agro biodiversity Research Area

CIAT Phenotyping Platform
Rice
Traits
Agronomic Abiotic Biotic
 Yield & Yield components  Water Productivity  Blast
 NUE  Extreme temperatures
 Nutritional Quality
2

Phenotyping Platform Activities
Explore germplasm Crop
Genetic
resources Improvement
Detect minor difference Tools
Genotype Identify gene marker
Molecular Breeding
Trait
Test and apply
Identification Gene
Discovery and Validation
MAS
Eco-efficient
Crop
3

Breeding for Water
Productivity Traits in Rice

Development of Abiotic Stress
Tolerant Crops by DREB Genes
IRRI-CIAT-JIRCAS-RIKEN
MAFF funded project

What We Would Like to Address
1) To evaluate plant performance under real field conditions. (G x E )
2) To evaluate gene technology for plant performance in different genetic
background under water-limited conditions. (G x G)
(1) Does gene technology work (2) Does gene technology works in commercial variety
in field conditions?
?
Yield under water limited conditions
X gene/
promoter
?
vs. By conventional breeding Y gene/
promoter
Screenhouse field
Many other factors altered gene expression
Plant performance
A A + gene B B+ B + C gene
Model plant Commercial variety

Our Challenges and Solutions
• Product concept (target environments)
• Field evaluation of crop performance under drought conditions
• Biosafety risk management for GM materials
• Gene effects in different genetic background