Establishing a molecular breeding program
based on the aluminum tolerance gene AltSB
and the P efficiency QTL Pup-1, for
i...
Goal and Objectives
• Goal: Enhance sorghum resilience and
productivity in low-P and high Al
saturation environments in Af...
Sorghum Growth under -P vs +P
(+ vs - Al saturation?)
Mali Low-P Population Donors
Donor Parent Type Origin
< Delay
Maturity in -P
> Grain Yield
in –P
1 CMDT45 LR Mali x
2 Segu...
Mali Low-P/Al-Tol Population
Donor Parent
OS
09/10 2010
OS
10/11
2011
isolation
Yield
rank -P
Yield
rank +P
2012
isolation...
Low-P/Al-tol Population advancement
Rainy season 2012: Final random-mating of 23 bulks,
representing different donor combi...
Low-P and Al-Tolerance in Kenya
Donor Parent
2010/
1
2010/
2
2011/
1
2011/
2
2012/
1
2013/
1
O2 xHSms3 F2 RM failed RM RM
...
Low-P and Al-Tolerance in Niger
Donor Parent OS 2009/10 RS 2010 OS 2010/11
RS 2011 -
drought RS 2012 -flood
1. Lonkosaw X ...
Field testing of EMBRAPA BC lines
in Niger 2013
• Evaluation of BC –lines with IRAT 204 and local parent
with ALTSB allele...
SC566-14 ALTol Bres-21
Field testing of EMBRAPA BC lines in Mali 2013
Al-Tolerance Lab Testing
Phenotyping
• Al- seedling screening facility
installed at Samanko, Mali
• Set of selected divers...
GWAS for low P adaptation
21% 40% 50%
188 genotypes
200k SNPs
Phenotyped in 14 –P environments
SNPs for GY in low P
similar to Sucrose-
phosphate synthaseAltSB
specific low P SNP
non-specific low P SNP
LD between thes...
AltSB effect on low-P grain yield
Grain yield in low P
Grain yield ratio –P/+P
Al-tolerant allele
Genomic Selection for Date of
Heading (DH), Plant Height (PH)
and Grain Yield (GY)
Proposed Population Progeny Testing
• 571 S1s derived from lowP and Al-Tol Mali
Population to be genotyped by GBS and
alle...
Conclusions: Implementing molecular
breeding for LowP/Al_tol
(from Genetic Resource to Farmers’ Field)
• Sorghum RM Popula...
Publications and Acknowledgements
• Leiser W, Rattunde F, Piepho HP,
Parzies H. 2011 Getting the
most out of sorghum low-
...
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GRM2013: Establishing a molecular breeding program based on the aluminum tolerance gene AltSB and the P efficiency QTL Pup-1, for increasing sorghum production in Sub-Saharan Africa -- F Rattunde

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GRM2013: Establishing a molecular breeding program based on the aluminum tolerance gene AltSB and the P efficiency QTL Pup-1, for increasing sorghum production in Sub-Saharan Africa -- F Rattunde

  1. 1. Establishing a molecular breeding program based on the aluminum tolerance gene AltSB and the P efficiency QTL Pup-1, for increasing sorghum production in Sub- Saharan Africa GCP GRM 27-30 September, 2013 Fred Rattunde with Willmar Leiser, Bob Schaffert, Jurandhir Magalhaes, Sam Gudu, Soumana Souley, Tom Hash, Eva Weltzien
  2. 2. Goal and Objectives • Goal: Enhance sorghum resilience and productivity in low-P and high Al saturation environments in Africa • Objectives: – Create random-mating (ms3) source populations with diversity for low-P adaptation and Al tolerance combined with required grain, glume, and plant traits – Apply molecular marker selection tools for Low-P and Al tolerance to effectively derive superior lines from the random-mated populations for the predominant low-input production systems in Sub-Saharan Africa
  3. 3. Sorghum Growth under -P vs +P (+ vs - Al saturation?)
  4. 4. Mali Low-P Population Donors Donor Parent Type Origin < Delay Maturity in -P > Grain Yield in –P 1 CMDT45 LR Mali x 2 Seguetana LR Mali x 3 IS15401 LR Cameroon x 4 B2-3 LR Burkina x 5 B2-5 LR Burkina x x 6 DouaG LR Mali x 7 CSM660 LR Mali x 8 Lina3 Bred Population x 9 NafalenP6 Bred Population x 10 Dagnali Kossurou LR Mali x • Ten donor parents: selected based on yield in Sko’06 and ’07 –P envs. (standardized) or < delay flowering in –P vs +P in 2009 Sko • Source of Male-sterility: 19 Progenies originating from farmers’ selections from Diversified Guinea populations
  5. 5. Mali Low-P/Al-Tol Population Donor Parent OS 09/10 2010 OS 10/11 2011 isolation Yield rank -P Yield rank +P 2012 isolation Nafalen P6 xHSms3 F2 RM RM 1 21 RM IS15401 xHSms3 F2 RM RM 3 41 RM B2-5 xHSms3 F2 RM RM 6 23 RM DouaG xHSms3 F2 RM RM 10 24 RM Dagnali Kossourou xHSms3 F2 RM RM 12 11 RM CSM660 xHSms3 F2 RM RM 14 7 RM Lina3 xHSms3 F2 RM RM 18 9 RM B2-3 xHSms3 F2 drop 40 28 Seguetana xHSms3 F2 drop 48 53 CMDT45 xHSms3 F2 drop 39 34 98-SB-F2-78 xHSms3 RM 2 8 RM 01-BE-F5P-15 xHSms3 RM 5 3 RM Sakoyka ba xHSms3 RM 8 12 RM 00-CZ-F5P-135 xHSms3 RM 13 20 RM SC566 RM RM 1/3 of donors with AltSB
  6. 6. Low-P/Al-tol Population advancement Rainy season 2012: Final random-mating of 23 bulks, representing different donor combinations (8 reps, randomized) Harvested 444 preferred and 251 acceptable panicles from sterile plants, created Population bulk Offseason 2012/2013: 1500 S0 plants produced 571 S1 lines (50% sterile, some plants did not reach flowering) Rainy season 2013: 571 S1-lines grown for selfing, preliminary assessment of critical traits for adaptation, and sampling for GBS
  7. 7. Low-P and Al-Tolerance in Kenya Donor Parent 2010/ 1 2010/ 2 2011/ 1 2011/ 2 2012/ 1 2013/ 1 O2 xHSms3 F2 RM failed RM RM L6 xHSms3 F2 RM RM RM N140d xHSms3 F2 RM RM RM C5 (O2xC1) xHSms3 F2 RM RM RM SC566 xHSms3 F2 RM RM RM SC283 xHSms3 F2 RM RM RM O2XC1 xHSms3 F2 RM RM RM A11XM45 xHSms3 F2 RM RM RM S58 xHSms3 F2 RM RM RM 5 drought tol. Lines xHSms3 F2 RM RM RM 11 Striga tol. lines xHSms3 F2 RM RM RM
  8. 8. Low-P and Al-Tolerance in Niger Donor Parent OS 2009/10 RS 2010 OS 2010/11 RS 2011 - drought RS 2012 -flood 1. Lonkosaw X ms3 pop F2 RM RM - failed RM - failed 2. Macia X ms3 pop F2 RM RM - failed RM - failed 3. ST9007-5-3-4 X ms3 pop F2 RM RM - failed RM - failed 4. Mota Maradi* X ms3 pop F2 RM RM - failed RM - failed 5. Bagoba X ms3 pop F2 RM RM - failed RM - failed 6. Jenjari V328 X ms3 pop F2 RM RM - failed RM - failed 7. Serena X ms3 pop F2 RM RM - failed RM - failed 8. Male V332 X ms3 pop F2 RM RM - failed RM - failed 9. Kaoura X ms3 pop F2 RM RM - failed RM - failed 10. ST9007-5-4-3 X ms3 pop F2 RM RM - failed RM - failed 11. Balankoma X ms3 pop F2 RM RM - failed RM - failed 12. 90SN-2 X ms3 pop F2 RM RM - failed RM - failed 13. Socomba 162 X ms3 pop F2 RM RM - failed RM - failed 14. SSD35 X ms3 pop F2 RM RM - failed RM - failed 15. L28 X ms3 pop F2 RM RM - failed RM - failed 16. MDK X ms3 pop F2 RM RM - failed RM - failed 17. SC 566 --- --- --- RM - failed RM - failed * might have AltSB
  9. 9. Field testing of EMBRAPA BC lines in Niger 2013 • Evaluation of BC –lines with IRAT 204 and local parent with ALTSB allele introduced, received from EMBRAPA at Sadore and Kollo Sadore 2013 SC 566CSM-63E
  10. 10. SC566-14 ALTol Bres-21 Field testing of EMBRAPA BC lines in Mali 2013
  11. 11. Al-Tolerance Lab Testing Phenotyping • Al- seedling screening facility installed at Samanko, Mali • Set of selected diverse lines from ICRISAT panel tested in 2012 • Good correspondence with results obtained in Brazil Genotyping for AltSB with KASPar • 188 sorghum genotypes from WCA screened for AltSB • 9% found to have AltSB alleles • High frequency of Guinea- race Name Race SAKOYKA-BA Guinea CSM 485 Guinea DIO-A Guinea DOUA-G Guinea IS 15401 Guinea SL22 Guinea MDK Durra EL KURUMBASSAU Guinea-Caudatum MOTA Caudatum-Guinea EL RURUKA Caudatum-Guinea EL DELE Guinea (IS 15401*98-SB-F2-78)-3-1 Guinea-Caudatum (IS 15401*98-SB-F2-78)-7-3 Guinea-Caudatum (IS 15401*98-SB-F2-78)-7-5 Guinea-Caudatum TOROBA Guinea SL22-1 Guinea IS 30804 Guinea
  12. 12. GWAS for low P adaptation 21% 40% 50% 188 genotypes 200k SNPs Phenotyped in 14 –P environments
  13. 13. SNPs for GY in low P similar to Sucrose- phosphate synthaseAltSB specific low P SNP non-specific low P SNP LD between these SNPs and AltSB markers: R²<0.1
  14. 14. AltSB effect on low-P grain yield Grain yield in low P Grain yield ratio –P/+P Al-tolerant allele
  15. 15. Genomic Selection for Date of Heading (DH), Plant Height (PH) and Grain Yield (GY)
  16. 16. Proposed Population Progeny Testing • 571 S1s derived from lowP and Al-Tol Mali Population to be genotyped by GBS and allele specific markers (AltSB and Pup-1) to: – Determine Allele freq Altsb and Pup-1 – Conduct genomic selection (best and worst genotypes) using marker effects from previous prediction set to validate utility in independent population – Conduct selection using AltSB, Pup-1 and the SNPs identified with GWAS – Compare effectiveness of different approaches based on 2014 field phenotyping
  17. 17. Conclusions: Implementing molecular breeding for LowP/Al_tol (from Genetic Resource to Farmers’ Field) • Sorghum RM Populations with diversity for lowP and AltSB and key traits for varietal adoption available in Mali and Kenya • Field phenotyping for LowP established, successful, but # of sites limited • EMBRAPA Lab Al_tol screening method established in Mali • Molecular approaches for selecting LowP adaptation showing potential • Phenotyping and genotyping LowP Population derived progenies: test molecular methods (GS & MAS) for applied breeding for Low-P production conditions
  18. 18. Publications and Acknowledgements • Leiser W, Rattunde F, Piepho HP, Parzies H. 2011 Getting the most out of sorghum low- input field trials in West- Africa using spatial adjustment. • Leiser, W.L., H.F.W. Rattunde, H.- P. Piepho, E. Weltzien, A. Diallo, A.E. Melchinger, H.K. Parzies, and B.I.G. Haussmann. 2012. Selection Strategy for Sorghum Targeting Phosphorus-limited Environments in West Africa: Analysis of Multi-environment Experiments. Crop Science 52(6): 2517. • IER: Abdoulaye Diallo, • IPR: Chiaka Diallo • INRAN: Soumana Souley • Moi University: Sam Gudu • University Hohenheim: Willmar Leiser, H.-P. Piepho, • Embrapa: Jurandhir Magalhaes, R. Schaffert, soil science • ICRISAT: F.Rattunde, E.Weltzien • Cornell University: Sharon Mitchell Funding:  GCP – ALTFIELD, CG CI  McKnight Foundation: WA CoP  BMZ: Abiotic Stress Project

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