Alganesh T.,Mehamed Ehsan.D,Kassahun E.,
  Basazin F.,Tesfaye W.S.,Marteen, Imke,
  Tesema T. and Wilson M.



Institute of
Biodiversity
 Conservation
Synopsis

•Introduction
•Objectives
•Methodology
•Results
•Recommendations
Introduction

The effect of physical feature of Ethiopia
Challenges
Options
The possible explanations
 Physical feature of the country
Chain mountains   4620 m.a.s.l




                      120 m.b.s.l
• Great Rift Valley ¨µ‹“ c”cKT }^a‹
Great Rift Valley
Rivers and lakes
Arabian sea
Indian ocean
Atlantic ocean
All this situation makes the country
to have diversified ecological zone




                               862/16
201/9
277/31
74
140                                                       130 ,000,000
          oDemographic pressure
120


100

                                             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
oClimate change
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%
39%

                                 Other cereals
61%
                                 Wheat & Barley




      26,000 accession of W&B stored
What's not?

              oIn - Situ Conservation?????
              oInventory???????????????




                  12 community gene banks
•Taxonomic classification

Wheat
Family           :Poaceae
Genus            :Triticum
Origin and Domestication
  o Fertile crescent, domesticated 10,000 years ago
  Barley
Family           :Poaceae
Genus      :Hordeum
Objectives

oTo identify promising adaptive variants
oEvaluate and characterize prommising accessions from
 gene banks with the participation of women farmers
oTo make available & provide access to better-suited crop
 varieties for targeted local communities to use in adapting
 to climate change.
Materials and Methods

oGenetic materials – 100 Acc of Wheat & 100 Acc of barley

                    (Koka, Ejerie, & Cheffe- 1400,2200 &2450
Evaluators

o140 W and 10 couples were selected
oExploited 19 traits for wheat & 16 traits for barley.
No of variants found per crop

                 60
No of variants



                 40
                          41                 55
                 20

                  0

                       Wheat               Barley
                               Crop type
41 variants found per2000genotypes of wheat in Koka
                                   10 v excellent
                                   performance
       17v
   intermidate


                                                    EP
                                                    ISH
                                                    OT


                                14v off type
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
Researchers
Farmers selection
                         selection


                    8v
     7v             8V        23v

             Common variant
Comparison made among sites

Koka site          Ejerie site


            8v
  2v        13V       2v
How selection criteria affects diversity ?




                                       33v
o Math logic :1X + 1X = 2X ,
o Diversity logic : 1X + 1X = only 1X
o………………...: 1X + 1Y = 3 = X,xy,Y

oTherefore ,we have to look always for the
 unique character
Awn roughness farmers preference



                                15 v RA in
                                Ejerie
                   16 vsmooth
                   in cheffe

       15 vrough
       in koka
Improved variety
Land race
Some variants susceptible to head smut
Ethiopian seed Custodian
Cause & effect of genetic erosion
          Ik not
       documented
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
IK
                Conservatio
                    n



     Research
Relax but respect the ecosystem




        Thank you

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