SOS: an overview and its connection to landscape-scale restoration research Polyploidy: it’s everywhere (and it sucks) Stephanie Frischie, Andrea Kramer,

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Presentation transcript:

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

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

SOS on the CP > 1300 collections, 5629 mean elevation Multiple SOS Teams from SLC to Safford (AZ) to Las Cruces 65 families:

SOS – Foundation for Research Indian ricegrass seed zones Matching plant traits to climate forecasts Blue grama garden/ploidy studies

Above: Top Ten Priority Species Below: Achnatherum hymenoides N=45 N=9 Above: Cleome spp. Below: Mach. canescens N=9

Note: SOS not designed to be a seed distributor seed nor to do project focused collections…but it is an excellent complementary resource.

Ploidy Variation + Restoration Ophioglossum, 2n=1260

Boutleoua gracilis Ploidy (genome copy #) Variation 2x=173 4x=528 6x=11

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 – often no spatial segregation

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

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 MOST DATA  PLOIDY RACES ARE ECOLOGICALLY EQUIVALENT

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?