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SOS: an overview and its connection to landscape-scale restoration research Polyploidy: it’s everywhere (and it sucks) Stephanie Frischie, Andrea Kramer, Stewart Sanderson, Troy Wood Images provided by Megan Haidet, data by many collectors
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Seeds of Success collect, conserve, and develop native plants for rehab and restoration – focus on common taxa comprehensive sampling of diversity – locally (95% stand. div. – 50 to 2000 plants) – range wide (among populations usu. > 10) >> 15,000 collections
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SOS on the CP > 1300 collections, 5629 mean elevation Multiple SOS Teams from SLC to Safford (AZ) to Las Cruces 65 families:
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SOS – Foundation for Research Indian ricegrass seed zones Matching plant traits to climate forecasts Blue grama garden/ploidy studies
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Above: Top Ten Priority Species Below: Achnatherum hymenoides N=45 N=9 Above: Cleome spp. Below: Mach. canescens N=9
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Note: SOS not designed to be a seed distributor seed nor to do project focused collections…but it is an excellent complementary resource.
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Ploidy Variation + Restoration Ophioglossum, 2n=1260
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Boutleoua gracilis Ploidy (genome copy #) Variation 2x=173 4x=528 6x=11
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How common is ploidy variation? Surveyed chromosome counts of common restoration species Of 115 species 37.4% were ploidy variant Surprising equity between diploid:polyploid counts --- 1.25 – often no spatial segregation
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Atriplex canescens (4-wing saltbush) Does it matter; polypoidy adaptation? Series of cytotypes correlated with morphological variation Habitat preference/physiology ploidy = drought tolerance Hao et al. 2012
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Atriplex canescens (4-wing saltbush) Does it matter; polypoidy adaptation? Series of cytotypes correlated with morphological variation Habitat preference/physiology ploidy = drought tolerance Hao et al. 2012 MOST DATA PLOIDY RACES ARE ECOLOGICALLY EQUIVALENT
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Summary Ploidy variation common within restoration species, including many CP forms Outstanding questions: Can it be simply ignored? How might it effect increase? How might it impact remant native stands?
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