Tesema Alganesh: Role of gene bank in adaptation to climate change in three sites of Showa region in Ethiopia

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  • Nice to see climate change adaptation research work particularly for crops like Barely,now I am also working on such area and have keen to meet you all the biodiversity experts
    (Dr.Gemeda,Dr.Alganesh,Dr.Stehay...)
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Tesema Alganesh: Role of gene bank in adaptation to climate change in three sites of Showa region in Ethiopia

  1. 1. Alganesh T.,Mehamed Ehsan.D,Kassahun E., Basazin F.,Tesfaye W.S.,Marteen, Imke, Tesema T. and Wilson M.Institute ofBiodiversity Conservation
  2. 2. Synopsis•Introduction•Objectives•Methodology•Results•Recommendations
  3. 3. IntroductionThe effect of physical feature of EthiopiaChallengesOptions
  4. 4. The possible explanations Physical feature of the country
  5. 5. Chain mountains 4620 m.a.s.l 120 m.b.s.l
  6. 6. • Great Rift Valley ¨µ‹“ c”cKT }^a‹Great Rift Valley
  7. 7. Rivers and lakes
  8. 8. Arabian seaIndian oceanAtlantic ocean
  9. 9. All this situation makes the countryto have diversified ecological zone 862/16
  10. 10. 201/9
  11. 11. 277/31
  12. 12. 74
  13. 13. 140 130 ,000,000 oDemographic pressure120100 80,000,000 76,000,000 80 67,000,000 60 40 30,000,000 World :9600/hour Ethiopia : 193 / hour 20 : 4632/day 0 1960 G.C 2002 G.C 2008 G.C 2011 G.C 2020 G.C
  14. 14. oClimate change
  15. 15. What we have done ? oEx-situ conservation 60,000 acc. orthodocs seeds 10,000acc. recalsitrant oil crops pulses 7,000 8,000 12% 13% cereals 45,000 75%
  16. 16. 39% Other cereals61% Wheat & Barley 26,000 accession of W&B stored
  17. 17. Whats not? oIn - Situ Conservation????? oInventory??????????????? 12 community gene banks
  18. 18. •Taxonomic classificationWheatFamily :PoaceaeGenus :TriticumOrigin and Domestication o Fertile crescent, domesticated 10,000 years ago BarleyFamily :PoaceaeGenus :Hordeum
  19. 19. ObjectivesoTo identify promising adaptive variantsoEvaluate and characterize prommising accessions from gene banks with the participation of women farmersoTo make available & provide access to better-suited crop varieties for targeted local communities to use in adapting to climate change.
  20. 20. Materials and MethodsoGenetic materials – 100 Acc of Wheat & 100 Acc of barley (Koka, Ejerie, & Cheffe- 1400,2200 &2450Evaluatorso140 W and 10 couples were selectedoExploited 19 traits for wheat & 16 traits for barley.
  21. 21. No of variants found per crop 60No of variants 40 41 55 20 0 Wheat Barley Crop type
  22. 22. 41 variants found per2000genotypes of wheat in Koka 10 v excellent performance 17v intermidate EP ISH OT 14v off type
  23. 23. No of variants selected by women farmers / seed color 9 9VW 8 7 6 5VR 5 4 3VP 3 2 1 0 17 v selected by farmers
  24. 24. ResearchersFarmers selection selection 8v 7v 8V 23v Common variant
  25. 25. Comparison made among sitesKoka site Ejerie site 8v 2v 13V 2v
  26. 26. How selection criteria affects diversity ? 33v
  27. 27. o Math logic :1X + 1X = 2X ,o Diversity logic : 1X + 1X = only 1Xo………………...: 1X + 1Y = 3 = X,xy,YoTherefore ,we have to look always for the unique character
  28. 28. Awn roughness farmers preference 15 v RA in Ejerie 16 vsmooth in cheffe 15 vrough in koka
  29. 29. Improved varietyLand race
  30. 30. Some variants susceptible to head smut
  31. 31. Ethiopian seed Custodian
  32. 32. Cause & effect of genetic erosion Ik not documented
  33. 33. RecommendationsFarmers are a source of valuable information and knowledge. Therefore, it should be documented protected and broad cast their vital indigenous knowledgeWithout a diverse genetic reservoir to draw for further improvement may not be possible, therefore it should be conserve our genetic reservoir.It would be better to encourage farmers to continue to manage a landrace gene pool in evolutionary real time
  34. 34. IK Conservatio n Research
  35. 35. Relax but respect the ecosystem Thank you

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