Medicago in Russia and neii iighbouring countries: …archive-ecpgr.cgiar.org/fileadmin/...Crop wild...
Transcript of Medicago in Russia and neii iighbouring countries: …archive-ecpgr.cgiar.org/fileadmin/...Crop wild...
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Crop wild relatives ofCrop wild relatives ofMedicago in Russia and
i i ineighbouring countries: gap analysis for effective gap a a ys s o e ect veconservation
Stephanie L. Greene, USDA
Al d Af i St P t b St t U iAlexandr Afonin, St. Petersburg State Univ.
Nikolai Dzyubenko, Vavilov Institute
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Crops in the genus MedicagoI t t f f dd d il iImportant forage, fodder and soil improvers
Lucerne (alfalfa)-Queen of legume foragesuce e (a a a) Quee o egu e o agesAnnual medic species- soil improvement
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Medicago Wild RelativesL P i G P lLucerne Primary Gene Pool
Tetraploid forms in Medicago sativa complex:Medicago sativa subsp. sativa
subsp. falcatab f l t isubsp. falcata var viscosa
nothsubsp. variasubsp glomeratasubsp. glomeratasubsp. sativa x subsp. glomerata
(Taxonomy (Taxonomy according to Small 2010)
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Medicago Wild RelativesLucerne Secondary Gene Pool
M di illMedicago papillosaM. saxatilis
Lucerne Tertiary Gene PoolLucerne Tertiary Gene Pool Diploid versions in Medicago sativacomplex:
Medicago sativa subsp. caeruleasubsp. falcata M. cancellata†
M d h t i
co p e :
subsp. falcata var viscosanothsubsp. varia
b l
M. daghestanicaM. marina
subsp. glomeratasubsp. sativa x subsp. glomerata
M. rupestris†
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Geographic distribution in the FSU Area
di i iMedicago sativa subsp. sativa
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Geographic distribution in the FSU Area subsp. sativa
Medicago sativa subsp. falcata
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Geographic distribution in the FSU Area subsp. sativa subsp. falcata
M. sativa subsp. falcata var. viscosa
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Geographic distribution in the FSU Area subsp. sativa subsp. falcata
M. sativa nothosubsp. varia
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Geographic distribution in the FSU Area subsp sativa subsp falcata nothosubsp variasubsp. sativa subsp. falcata nothosubsp. varia
M. sativa subsp. glomerata
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Geographic distribution in the FSU Area subsp glomeratasubsp sativa subsp falcata nothosubsp varia subsp. glomeratasubsp. sativa subsp. falcata nothosubsp. varia
Medicago sativa subsp. sativa X subsp. glomerata
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Geographic distribution in the FSU Area subsp glomeratasubsp sativa subsp falcata nothosubsp varia subsp. glomeratasubsp. sativa subsp. falcata nothosubsp. varia
Medicago sativa subsp. sativa X subsp. glomerata
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Medicago Wild RelativesAnnual Medic Species- Primary Gene Pool
M arabicaWild forms of cultivated species:M.arabicaM.littoralisM lupulinaM.lupulinaM.minimaM orbicularisM.orbicularisM.polymorphaM rigidulaM.rigidulaM.scutellataM t t lM.truncatula
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M. polymorphaAnnual Species
M. lupulinaM. lupulina
M. minima
M. littoralis
M arabicus
M. orbicularis
M. arabicus
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Ex situ assessmentEx situ assessment•Collections reviewed
USDAUSDAVIRICARDAAustralia (SARDI)Australia (SARDI)Collections in Eurisco database
• Duplicates among collections not counted• Duplicates among collections not counted• Cultivated forms not countedA f FSU l ifi d i 5 hi•Area of FSU classified into 5 ecogeographic
zones
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Ecogeographic zones where Medicago species occurEcogeographic zones where Medicago species occur
C i St B ltEastern Siberia
Crimea Steppe Belt
Caucasus
Mountain Central Asia
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Ex situ representation of ecogeographic zones- perennials
MountainCentral Steppe Eastern
Crimea Caucasus Asia Belt SiberiaM. cancellata† 7 0 0M. daghestanica 4M. daghestanicaM. marina 0 0M. papillosa 3M rupestris† 0M. rupestris† 0M. sativa nsubsp. varia 11 41 14 242 0ssp. caerulea 53 48
f l t 7 66 28 468 16ssp. falcata 7 66 28 468 16ssp. falcata var viscosa 8 0ssp. glomerata 1 43 1ssp. sativa 0 272 167 226 3sativa x glomerata 1 20M saxatilis 1M. saxatilis 1
endemic † endangered, vulnerable
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Ex situ representation of ecogeographic zones- annuals
MountainCentral Steppe Eastern
Crimea CaucasusCentral Asia
SteppeBelt
Eastern Siberia
M. arabica 14 26M. littoralis 23M. lupulina 8 40 10 96M minima 29 49 71 5M. minima 29 49 71 5M. orbicularis 33 58 30M. polymorpha 13 52 22M i id l 25 33 49M. rigidula 25 33 49M. scutellata 2 3M. truncatula 18? 1
endemic † endangered, vulnerable
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In situ Assessment
World Database for Protected AreaWorld Database for Protected Area
•Species distribution maps were used to develop a species p p p prichness map•Polygons of protected areas classified as zapovedniks were yg p pdownloaded and overlaid on species richness map•Species inventories of zapovedniks were obtainedp p•GIS software- IDRISI
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CWR Taxa Richness MapCWR Taxa Richness Map
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CWR Taxa Representation in ReservesCWR Taxa Representation in Reserves
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Small Number of Reserves Could Capture TaxaDi itDiversity
Geographic Regions of MedicagoGeographic Regions of MedicagoCWR Taxa Diversity
Natural Preserves with Documented Occurrence
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Small Number of Reserves Could Capture TaxaDi itDiversity
Geographic Regions of MedicagoGeographic Regions of MedicagoCWR Taxa Diversity
Natural Preserves with Documented Occurrence
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LessonLesson Learned in our Crimean E l tiExploration 20082008
Importance of Ground TruthingTruthing
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Natural Reserves
Medics Rarely Found
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Anthropogenic Sites
Medics were common
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Conclusions• Ex situ gaps occur for perennial CWR species outside the M. sativa complex, including vulnerable species•Eastern Siberia is underrepresented•Northern-most extent of annual medics is underrepresented• Seven geographic areas capture taxa diversity and Nature Reserves occur in most of these areas and some Medicago appear on their inventories• Further work is needed to determine if gaps occur for in situ protection in Yukutia, Transcaucasus and Western Kazakhstan areas• In situ conservation of annual Medicago species may be most effective in disturbed sites