Translation of digital phenotypic traits: from promise to commercial relevance
Dr. Shital Dixit
Presentation outline • Challenges in plant phenotyping • Novelty of PhenoFab® projects
• Journey of PhenoFab® (2011-2012) • Phenodays 2011 offer projects
• Game changing role of data analysis • Conclusions Shital Dixit
11-10-2012
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Challenges in plant phenotyping Cold
Salt
Drought
• • •
Objective phenotyping Digital Phenotyping High-throughput
Abiotic agents
Biotic agents
Subjective/bias scoring Shital Dixit
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Digital Phenotyping
Objective data collection from digital images to measure morphological and physiological characteristics through image analysis is known as digital phenotyping
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Novelty of PhenoFab facility
Agri Food Biotech company
Automation of scientific images
Software/hardware development
Value creation for Customer
Traits/genes/genomics/bioinformatic
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PhenoFab® – the facility
3D Conveyor Scanalyzer
•Greenhouse setup with climate control •Moving pots/trays: capacity: 1200 pots
•GMO authorized Shital Dixit
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3D Image stations Capacity: Plant Height 2.6 mts.
Visible light -Shape - Color
NIR - internal structure - Water content
Fluorescence -Chlorophyll analysis
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CottonDrought, WUE Tobacco
NUE Flowering time Crop architechture Height, width Canopy structure Heavy metal toxicity Effect of growth substrate Crop growth rate Fruit shape, color and shelf life
Lettuce
Grass
Sorghum
Taraxacum
Pepper
Maize
Miscanthus
Canola
Rice
Ficus
Sugarbeet
Wheat
Cabbage
Grass
Tomato
Cucumber
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PhenoFab 速 project workflow
Idea
PhenoFab 速
to workplan
5 weeks
From image to digital phenotyping
Statistical correlation study
Conclusions
4 months Shital Dixit
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The PhenoDay 2011 offers Evaluate the power of digital phenotyping • Growth curve evaluation between genotypes – – – – –
Sorghum Sugarbeet Tobacco Grasses Miscanthus
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Project 1: Phenoday 2011 offer project GOAL: Phenotype biomass development in sugarbeet hybrids
Experimental set-up 5 sugarbeet hybrid seeds GAA, GBA, GCA, GDA & GEA
8 repetitions Phenotyped for 5 weeks 4 side + 1 top camera images
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Growth model analysis GEA is the smallest, fastest in the initial growth and • Initial size of genotype slowest in growth the secondary growth • Initial rate of genotype GCA is the biggest, • Secondary growth rate of genotype Slowest in the initial growth and Fastest in the secondary growth
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GDA
GBA
GCA
GAA
GEA
GAA
GDA
GBA
GCA
GEA
Secondary growth per genotype
Initial growth per genotype
GCA
GDA
GBA
GAA
GEA
Initial size per genotype
Growth curve analysis for 5 week period
No significant difference between genotypes
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Discussion of the results with the client
Genotypes were treated with seed priming treatment GEA and GCA with treatment-A GAA with treatment-B GBA and GDA control treatment-C
Effect on growth expected in 2-3 weeks after germination Seedling delivered to PhenoFab 2 weeks after germination Zoom into the first 11 days of the experiment
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Growth curve analysis for first 11 days
No significant difference between genotypes
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Growth curve analysis for first 11 days
Treatment A shows 5% boost in the growth of the plant compared to its non-treated control
GCA GEA GAA GDA GBA
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Conclusions for project 1 Research question must be clearly addressed to design the right experiment Parameters measured some times might not be correlated to the desired trait/effect but can be additional effects measured on the plants Digital phenotypic data analysis is very dynamic and can be very trait specific
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Project 1: Commercial relevance Seed priming treatment A showed 5% higher growth compared to its control and counter standard treatment. (1-1.5% in root yield in field is of commercial relevance)
Image analysis of the first 2-3 weeks after germination in sugarbeet might even show higher differences between treatments. Uniform and faster germination (>30%) is of commercial relevance
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Project 2: PRS company project
GOAL: PRS (gel-based growth medium) enhances plant growth
PRS gel at the bottom of the pot
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PRS system tested on Pepper and Ficus
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PRS system tested on Pepper and Ficus Plant type 1. Fast growing= Pepper 2. Slow growing = Ficus Watering regimes 1. W1= sub-optimum 2. W2= Optimum Design 1. Pepper grown with gel = PG 2. Pepper grown without gel = PN 3. Ficus grown with gel =FG 4. Ficus grown without gel =FN
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Growth curve analysis in pepper
Sub-optimum water Optimum water
Sub-optimum water Optimum water
Missing data
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Growth curve analysis in Ficus Sub-optimum water Optimum water Sub-optimum water Optimum water
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Growth rate analysis in pepper
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Growth rate analysis in Ficus
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Biomass development in ficus and pepper Does PRS system enhances plant growth? Biomass comparison of plants
FGW1 FGW2 FNW1 FNW2 PGW1 PGW2 PNW1 PNW2
Shoot Average (g) 9.0 11.0 10.3 13.4 220.6 262.3 242.5 267.9
Shoot Stdev 2.4 2.0 2.9 2.4 32.8 33.6 23.7 38.5
Root Average (g) 7.4 9.9 6.7 10.9 42.5 52.1 70.5 66.1
Root Stdev 4.6 1.5 1.3 2.3 8.6 13.8 15.4 17.3
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Water and Nutrition use efficiency Water Water (ml) and Nutrition average per plant/treatment (ml * EC) (ml)
FGW1 FGW2 FNW1 FNW2 PGW1 PGW2 PNW1 PNW2
375 604 574 925 3978 4560 4320 4936
Ficus grown on gel-based medium needs 35% 35% less water to produce 35% similar amount of biomass produced by plant grown On a non-gel medium
8%
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Conclusions for project 2 • PRS gel based system does not enhances plant growth
• Plant growth speed variation: Observed only in pepper but only in combination with water regime • PRS system allows plants to use both water and nutrients more efficiently (35% less water in ficus) • Digital phenotyping data allows to study the problem in dynamic manner.
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Commercial relevance of PRS system PRS system can claim that plants grown on their medium are more water and nutrient efficient (35% in ficus and 8% in pepper) System can be used to grow plants where water is a scarce resource e.g in dry and arid regions Water quality is poor to grow plants Maintaining plants longer without watering, thereby reducing manual costs for watering
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PhenoFab® summary PhenoFab® has: 1. gained experience in different crops and relevant traits 2. overcomed image analysis and data analysis challenges to greater extent, hence speed up the project duration. 3. generated output towards creating commercial value in crops
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PhenoDays 2012
Wanna try PhenoFab in 2012 ? Just let us know shital.dixit@keygene.com
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Acknowledgements
Gert-Jan Speckmann Jose Guerra Koen Huvenaars Marco van Schriek Anker Sørensen Arjen van Tunen
Dirk Vandenhirtz Joerg Vandenhirtz Kevin Nagel Ralph Schunk Shital Dixit
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PhenoFab: The plant phenotyping facility in Europe
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