Unlocking Agriculture's Past

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A presentation given at the National Geographic store in Madrid on July 28, 2011.

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Unlocking Agriculture's Past

  1. Unlocking agriculture’s past to feed the future world<br />Jacob van Etten<br />
  2. 1<br />Feedingthefutureworld<br />
  3. IPCC, 2007<br />
  4. % change<br />-95 to -31<br />-30 to -11<br />-10 to -1<br />0<br />1 to 29<br />30 to 47<br />48 to 98<br />Change in suitabilityduetoclimatechange<br />50 crops, to 2050<br />Andrew Jarvis, CIAT/CCAFS<br />
  5. D. Lobell et al. 2011<br />
  6. 2<br />Thepastisthekeytothefuture<br />
  7. China, 6000 years before present<br />
  8. ?<br />
  9. ?<br />
  10. ?<br />
  11. Geneticchange<br />earlyfarmersselect<br />
  12. 3<br />Thescience of agriculturalorigins<br />
  13. Nikolai I. Vavilov (1887-1943)<br />Centres of origin<br />
  14. Flotation<br />
  15. Rice spikelet bases<br />Which is the domesticated one?<br />
  16. 14C radiocarbon dating<br />accelerator mass spectrometry (AMS) <br />
  17. Phytoliths<br />scanning electron microscope (SEM)<br />
  18. Experimental archaeology<br />
  19. Bones<br />Was agriculture such a good idea after all?<br />
  20. DNA analysis<br />“Old” DNA recovery<br />
  21. Current patterns<br />of genetic diversity<br />
  22. 4<br />Heritage of thepast: agriculturaldiversity<br />
  23. Transfer of genes from CWR tocrops<br />“Scuba rice”<br />Flood-tolerance gene from landrace<br />
  24. Photo: J. Cherfas, Bioversity International<br />
  25. Photo: J. Cherfas, Bioversity International<br />
  26. 5<br />Geography: thepower of maps and models<br />
  27. Seed samples<br />available from the multilateral system <br />
  28. Gaps in the collections<br />example for sorghum<br />
  29. Archaeological data<br />Maize origin in Mexico<br />
  30. Overlappingpart of thedispersalroute<br />Divergentpart of thedispersalroute<br />Origin of dispersal<br />
  31. R2 = 0.44<br />measuredgeneticdistance<br />predictedgeneticdistance<br />
  32. Interactive online mapping<br />+<br />
  33. www.ie.edu/mgec<br />

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