What's happening at IRRI
Wednesday, March 15, 2017, 01:15pm - 02:15pm
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Date: 15 March 2017, Wednesday: 1:15-2:15pm
Venue: CESD Conference Room 1, DL Umali Bldg.
Title: High fidelity phenotyping of productivity, WUE and drought traits in the model C4 grasses maize, sorghum and setaria
Andrew D.B. Leakey, University of Illinois at Urbana-Champaign
The ability to cheaply and quickly phenotype large mapping populations of C4 grass crops for complex traits related to productivity and drought tolerance severely limits efforts to understand genotype-to-phenotype associations under field conditions. Here we report the development and application of methods to assess: (1) above-ground biomass production from hemispherical imaging; (2) stomatal patterning from optical tomography; (3) leaf nitrogen status and allometry from hyperspectral reflectance; (4) drought-induced leaf curling from hemispherical imaging; and (5) canopy temperature by infra-red imaging as a proxy for crop water use. We demonstrate that these methods successfully capture the same genotype by environment interactions and reproduce quantitative trait loci analyses as traditional methods that are slower and more expensive. The combination of these advances in phenotyping capability and new knowledge of the genetic architecture of productivity and drought traits creates a research platform that can now be applied to biosystems design of more productive and ecologically sustainable biofuel and bioproduct crops.
CESD Conference Rm 1, 1/F Umali bldg.