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Barley genetic resources under
climate changes: a possible way in
field study
A.Jilal1, M. Maatougui2, and H. Ouabbou1
(1:INRA Morocco; 2: ICARDA)
Rabat - Morocco, June 25, 2014
International workshop:“Applied Mathematics and Omics
Technologies for Discovering Biodiversity and Genetic
Resources for Climate Change Mitigation and Adaptation to
Sustain Agriculture in Drylands”
Outlines
• Barley : a typical cereal for the whole world
• Barley landraces: a source of gene richness
• Brainstorming on handling barley accessions
• Conclusion
Barley : a typical cereal for the whole world
Barley
Short cycle
(60 à 70days)
Low inputs
Drought
Salinity
Cold
-15°C
Easy
Hybridization
(DH)Good genomic
model
Acidity
Alkalinity
Photoperiod
Multi uses
Large
adaptation
-250mm
Rainfall
60°N
Longitude
4800m
altitude
Barley is indeed a food security crop under climate changes
Barley landraces: a source of gene richness
• Oldest domesticated plants in history (10,000 years
ago in the Fertile Crescent)
• Genetically heterogeneous populations comprising
inbreeding lines and hybrid segregates
• Genetically variable for qualitative and quantitative
characters
• Good adaptation to local environmental conditions
• Untapped reservoir of useful genes for adaptation to
abiotic & biotic stresses (eg: Rph gene for Puccinia
hordei)
• Most accessions held in ICARDA’s gene banks for
securing the gene pools (31000 barley accessions)
Barley landraces: a source of gene richness
Brainstorming on handling barley accessions
Issues
• The rejuvenation of barley accessions in ex situ
conservation is time, space & money consuming
• Limited screening capacity for traits of interest of the
massive gene bank collection
Easy way to evaluate large number of accessions for traits of interest ?
Easy rejuvenation of the accessions effectively with less costs?
Barley Spikes
• Traditional seed saving
in spikes was used for a
long time
• Used for pre-basic seed
increase in some
countries (eg:Algeria) &
off-season testing
• Spikes hold significant
information on the
accession
Brainstorming on handling barley accessions
• Step1: Experiment
• Head planting of 8 best Moroccan varieties replicated three times (inter-heads
1m) at Marchouch experiment station 2012-2013
Variety Row type
Adrar 2 Row barley
Taffa 6 Row barley
Firdaws 6 Row barley
Oussama 6 Row barley
Massine 6 Row barley
Amira 6 Row barley
Amalou 6 Row barley
Laanaceur 6 Row barley
Brainstorming on handling barley accessions
Results:
Brainstorming on handling barley accessions
The variety adrar (2 row) has indeed more tillers (spikes than the other varieties)
Head planting provides information on yield via spikes’ number/bouquet
Step2: Honeycomb design
1) Evaluation in the absence of interplant competition
2) Comparing the middle plant to the encircled ones
3) In the absence of competition, whole genome phenotype analysis is accomplished by
dividing the crop yield potential into three components: the plant yield potential, the
tolerance to stresses and the responsiveness to inputs (Fasoula and Tokatlidis, 2012)
Brainstorming on handling barley accessions
Step3: Honeycomb design with head planting
Brainstorming on handling barley accessions
Step3: Honeycomb design with head planting
Advantages:
• Large number of accession can be evaluated(10000 accession/hectare)
• Presence of Intra-plants competition
• Easy for disease & pest testing (artificial inoculation)
• Easy screening for abiotic stresses (drought, salinity, cold…)
• Easy scoring for biotic & abiotic stresses
• Avoiding mixtures (no need for rouging)
• Easy way to rejuvenate accession in a small space
• Better method for naked barley (avoid broken embryos while threshing)
• Easy making copies of the accessions (storing spikes)
• No effort in threshing
• Easy planting & harvesting
• Avoid seed loss while threshing
• Time, money & space saving
Brainstorming on handling barley accessions
Honeycomb design with head planting
Ongoing work:
• Evaluating the Moroccan barley collection in the three contrasting
environments:
Arid & semi
arid area
Favorable
area
Highland
area
Drought
Heat
Disease & pest
Cold
Pest
Disease & pest
Lodging
Brainstorming on handling barley accessions
Honeycomb design with head planting:
• Could be an alternative method for handling a large
number of accession
• Could be used for developing core collection &
FIGs subset
• Might give information on the yield based on spikes’
number by bunch
Conclusion
Thanks for your attention
Shai’r (Arabic) Orge (French)
Barley (English) Gerste (German)
Orzo (Italian) Cebada (Spanish)
Cevada (Portugal) Yachmen’ (Russian)
Kritari (Greece) Jau (Inde,Iran,Pakistan,Afghanistan)
Läua Mach (Vietnam) Kao (Thaïland)
Gebse (Amaric) Segem (Tigrigna)

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THEME – 3 Barley genetic resources under climate changes: a possible way in field study

  • 1. Barley genetic resources under climate changes: a possible way in field study A.Jilal1, M. Maatougui2, and H. Ouabbou1 (1:INRA Morocco; 2: ICARDA) Rabat - Morocco, June 25, 2014 International workshop:“Applied Mathematics and Omics Technologies for Discovering Biodiversity and Genetic Resources for Climate Change Mitigation and Adaptation to Sustain Agriculture in Drylands”
  • 2. Outlines • Barley : a typical cereal for the whole world • Barley landraces: a source of gene richness • Brainstorming on handling barley accessions • Conclusion
  • 3. Barley : a typical cereal for the whole world Barley Short cycle (60 à 70days) Low inputs Drought Salinity Cold -15°C Easy Hybridization (DH)Good genomic model Acidity Alkalinity Photoperiod Multi uses Large adaptation -250mm Rainfall 60°N Longitude 4800m altitude Barley is indeed a food security crop under climate changes
  • 4. Barley landraces: a source of gene richness • Oldest domesticated plants in history (10,000 years ago in the Fertile Crescent) • Genetically heterogeneous populations comprising inbreeding lines and hybrid segregates • Genetically variable for qualitative and quantitative characters • Good adaptation to local environmental conditions • Untapped reservoir of useful genes for adaptation to abiotic & biotic stresses (eg: Rph gene for Puccinia hordei) • Most accessions held in ICARDA’s gene banks for securing the gene pools (31000 barley accessions)
  • 5. Barley landraces: a source of gene richness
  • 6. Brainstorming on handling barley accessions Issues • The rejuvenation of barley accessions in ex situ conservation is time, space & money consuming • Limited screening capacity for traits of interest of the massive gene bank collection Easy way to evaluate large number of accessions for traits of interest ? Easy rejuvenation of the accessions effectively with less costs?
  • 7. Barley Spikes • Traditional seed saving in spikes was used for a long time • Used for pre-basic seed increase in some countries (eg:Algeria) & off-season testing • Spikes hold significant information on the accession Brainstorming on handling barley accessions
  • 8. • Step1: Experiment • Head planting of 8 best Moroccan varieties replicated three times (inter-heads 1m) at Marchouch experiment station 2012-2013 Variety Row type Adrar 2 Row barley Taffa 6 Row barley Firdaws 6 Row barley Oussama 6 Row barley Massine 6 Row barley Amira 6 Row barley Amalou 6 Row barley Laanaceur 6 Row barley Brainstorming on handling barley accessions
  • 9. Results: Brainstorming on handling barley accessions The variety adrar (2 row) has indeed more tillers (spikes than the other varieties) Head planting provides information on yield via spikes’ number/bouquet
  • 10. Step2: Honeycomb design 1) Evaluation in the absence of interplant competition 2) Comparing the middle plant to the encircled ones 3) In the absence of competition, whole genome phenotype analysis is accomplished by dividing the crop yield potential into three components: the plant yield potential, the tolerance to stresses and the responsiveness to inputs (Fasoula and Tokatlidis, 2012) Brainstorming on handling barley accessions
  • 11. Step3: Honeycomb design with head planting Brainstorming on handling barley accessions
  • 12. Step3: Honeycomb design with head planting Advantages: • Large number of accession can be evaluated(10000 accession/hectare) • Presence of Intra-plants competition • Easy for disease & pest testing (artificial inoculation) • Easy screening for abiotic stresses (drought, salinity, cold…) • Easy scoring for biotic & abiotic stresses • Avoiding mixtures (no need for rouging) • Easy way to rejuvenate accession in a small space • Better method for naked barley (avoid broken embryos while threshing) • Easy making copies of the accessions (storing spikes) • No effort in threshing • Easy planting & harvesting • Avoid seed loss while threshing • Time, money & space saving Brainstorming on handling barley accessions
  • 13. Honeycomb design with head planting Ongoing work: • Evaluating the Moroccan barley collection in the three contrasting environments: Arid & semi arid area Favorable area Highland area Drought Heat Disease & pest Cold Pest Disease & pest Lodging Brainstorming on handling barley accessions
  • 14. Honeycomb design with head planting: • Could be an alternative method for handling a large number of accession • Could be used for developing core collection & FIGs subset • Might give information on the yield based on spikes’ number by bunch Conclusion
  • 15. Thanks for your attention Shai’r (Arabic) Orge (French) Barley (English) Gerste (German) Orzo (Italian) Cebada (Spanish) Cevada (Portugal) Yachmen’ (Russian) Kritari (Greece) Jau (Inde,Iran,Pakistan,Afghanistan) Läua Mach (Vietnam) Kao (Thaïland) Gebse (Amaric) Segem (Tigrigna)