Dorena Genetic Resource Center

Elliott L. 2006. Availability of Resistant Port-Orford-Cedar Seed.
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Oh E., Hansen E., and Sniezko R.A. 2006. Port-Orford-cedar resistant to Phytophthora lateralis. Forest Pathology. 36 (6): 385–394.
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Sniezko R.A. 2006. Resistance breeding against nonnative pathogens in forest trees — current successes in North America. Canadian Journal of Plant Pathology. 28: S270–S279.
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Sniezko R.A., Kolpak S., Hansen E., Goheen D.G., Elliott L., and Angwin P. 2006. Field survival of Phytophthora lateralis resistant and susceptible Port-Orford-cedar families..

Elliott L. 2005. Port-Orford-cedar resistance breeding program: annual update.
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Hill J., Zobel D., and Sniezko R.A. 2005. Reproductive behavior of Port Orford cedar from different provenances grown in a common garden. Poster Presentation. 2005 Western Forest Genetics Association Meeting, Corvallis, OR.
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Kolpak S., Sniezko R.A., and Hayot C.F. 2005. Inbreeding depression in Port-Orford-cedar: early survival and growth of self-fertilized and open-pollinated progeny. Poster Presentation. 2005 Western Forest Genetics Association Meeting, Corvallis, OR.
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Sniezko R.A., Kolpak S., Kegley A., and Danchok B. 2005. White pine blister rust resistance in western white pine – family variation in infection percent and survival in field trials. Oral Presentation. 2005 Western Forest Genetics Association Meeting, Corvallis, OR.

Sniezko R.A., Mylecraine K., Elliott L., Kolpak S., Reeser P., and Hansen E. 2005. Genetic resistance in Port-Orford-cedar to Phytophthora lateralis – survival of seedlings from first orchard seed in short-term testing. Oral Presentation. 2005 Western Forest Genetics Association Meeting, Corvallis, OR.

Sniezko R.A., Mylecraine K., Elliott L., Kolpak S., Reeser P., and Hansen E. 2005. Genetic resistance in Port-Orford-cedar to Phytophthora lateralis: survival of seedlings from first orchard seed in greenhouse testing. Poster Presentation. 53rd WIFDWC 2005.
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Elliott L. 2004. Port-Orford-cedar resistance testing and breeding program: annual update.
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Sniezko R.A. 2004. Genetic resistance in Port-Orford-cedar to the non-native root rot pathogen Phytophthora lateralis—2003 Update. In Proceedings of the 51st Western International Forest Disease Work Conference. 2003 August 18-22. Grants Pass, OR. Edited by Geils B.W. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Flagstaff, AZ. pp. 127–131.
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Sniezko R.A., Hansen E., Elliott L., and Goheen D.G. 2004. Genetic resistance in Port-Orford-cedar to the non-native root rot pathogen Phytophthora Lateralis: a tool to aid in restoration in infested riprarian areas. In Proceedings of the Second Conference on Klamath-Siskiyou Ecology. pp. 27–32.
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Sniezko R.A., Hansen E., and Kolpak S. 2004. Simply inherited resistance to Phytophthora lateralis in Port-Orford-cedar: greenhouse testing. Poster Presentation. In Proceedings of the 51st Western International Forest Disease Work Conference. 2003 August 18-22. Grants Pass, OR. Edited by Geils B.W. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Flagstaff, AZ. p. 87.
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Sniezko R.A., Tomback D.F., Rochefort R.M., Goheen E.M., Hunt R., Beatty J., Murray M., and Betlejewski F. 2004. Exotic pathogens, resistant seed and restoration of forest tree species in western North America. Poster Presentation. In Proceedings of the 51st Western International Forest Disease Work Conference. 2003 August 18-22. Grants Pass, OR. Edited by Geils B.W. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Flagstaff, AZ. p. 89.
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Sniezko R.A., Tomback D.F., Rochefort R.M., Goheen E.M., Hunt R., Beatty J., Murray M., and Betlejewski F. 2004. Exotic pathogens, resistant seed and restoration of forest tree species in western North America. In Proceedings of the Second Conference on Klamath-Siskiyou Ecology. pp. 21–26.
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Elliott L. 2003. Port-Orford-cedar resistance testing and breeding program: annual update.
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Kitzmiller J., Sniezko R.A., Hamlin J.E., Stevens R.D., and Casavan K. 2003. Genetics of Port-Orford-cedar. In A Range-Wide Assessment of Port-Orford-Cedar (Chamaecyparis lawsoniana) on Federal Lands. U.S. Department of Agriculture, Forest Service, and U.S. Department of the Interior, Bureau of Land Management. pp. 63–74.
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Sniezko R.A., Elliott L., Goheen D.G., Casavan K., Hansen E., Frank C., and Angwin P. 2003. Development of Phytophthora lateralis resistant Port-Orford-cedar for restoration in the Pacific Northwest. Poster Presentation. In 2002 North American Forest Biology Workshop. Pullman, Washington.
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Sniezko R.A., and Hansen E. 2003. Breeding Port-Orford-cedar for resistance to Phytophthora lateralis: current status & considerations for developing durable resistance. In 2^nd International IUFRO Working Party 7.02.09 Meeting, Albany, W. Australia 30th Sept. - 5th Oct. 2001. Edited by McComb J.A., Hardy G.E., and Tommerup I.C. Murdoch University Print, Murdoch, WA, Australia. pp. 197–201.
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Sniezko R.A., Hansen E., and Hamlin J.E. 2003. Variation in Phytophthora lateralis resistance among 29 seedling families of Chamaecyparis lawsoniana. In 2^nd International IUFRO Working Party 7.02.09 Meeting, Albany, W. Australia 30th Sept. - 5th Oct. 2001. Edited by McComb J.A., Hardy G.E., and Tommerup I.C. Murdoch University Print, Murdoch, WA, Australia. pp. 202–207.
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Sniezko R.A., Kitzmiller J., Elliott L., and Hamlin J.E. 2003. Breeding for resistance to Phytophthora lateralis. In A Range-Wide Assessment of Port-Orford-Cedar (Chamaecyparis lawsoniana) on Federal Lands. U.S. Department of Agriculture, Forest Service, and U.S. Department of the Interior, Bureau of Land Management. pp. 77–89.
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Elliott L. 2002. Port-Orford-cedar resistance testing and breeding: an update from the Dorena Tree Improvement Center.
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Sniezko R.A., and Hansen E. 2002. Breeding for resistance to Phytophthora lateralis in Port-Orford-cedar: Current status (2001) and considerations for deveolping durable rsistance. In Proceedings of the Forty-Ninth Annual Western International Forest Disease Work Conference. 2001 10 September-14 September. Carmel, CA. Edited by Marshall K. p. 95.
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Zobel D., Kitzmiller J., Sniezko R.A., and Riley L. 2002. Range-wide genetic variation in Port-Orford-cedar (Cupressaceae, Chamaecyparis lawsoniana): II. Timing of height growth. Journal of Sustainable Forestry. 14 (4): 33–49.
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Elliott L. 2001. Port-Orford-cedar resistance testing and breeding: an update from the Dorena Tree Improvement Center.
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Zobel D., Riley L., Kitzmiller J., and Sniezko R.A. 2001. Variation in water relations characteristics of terminal shoots of Port-Orford-cedar (Chamaecyparis lawsoniana) seedlings. Tree Physiology. 21 (11): 743–749.
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Bower A., Casavan K., Frank C., Hansen E., Goheen D.G., Marshall K., Sniezko R.A., and Sutton W. 2000. Screening Port-Orford-cedar for resistance to Phytophthora lateralis: results from 7000+ trees using a branch lesion test. In Proceedings of the First International Meeting on Phytophthoras in Forest and Wildland Ecosystems (IUFRO Working Party 7.02.09). 30 August-3 September, 1999, Grants Pass, OR. Edited by Hansen E., and Sutton W. Oregon State University, Corvallis, OR. pp. 99–100.
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Elliott L., and Sniezko R.A. 2000. Cone and seed production in a Port-Orford-cedar containerized orchard. In Proceedings of the First International Meeting on Phytophthoras in Forest and Wildland Ecosystems (IUFRO Working Party 7.02.09). 30 August-3 September, 1999, Grants Pass, OR. Edited by Hansen E., and Sutton W. Oregon State University, Corvallis, OR. pp. 105–106.
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Goheen D.G., Angwin P., Sniezko R.A., and Marshall K. 2000. Port-Orford-cedar root disease in southwestern Oregon and northwestern California. In Proceedings of the First International Meeting on Phytophthoras in Forest and Wildland Ecosystems (IUFRO Working Party 7.02.09). 30 August-3 September, 1999, Grants Pass, OR. Edited by Hansen E., and Sutton W. Oregon State University, Corvallis, OR. pp. 107–111.
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Kitzmiller J., and Sniezko R.A. 2000. Range-wide genetic variation in Port-Orford-cedar (Chamaecyparis lawsoniana [A. Murr.] Parl.): I. Early height growth at coastal and inland nurseries. Journal of Sustainable Forestry. 10 (1/2): 57–67.
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Sniezko R.A., Elliott L., Linn J., Goheen D.G., Hansen E., Casavan K., Kitzmiller J., and Rose D.L. 2000. Operational breeding program for resistance to an exotic root disease in Port-Orford-cedar. Poster Presentation. Society of American Foresters National Convention, Washington, D.C. (2000).
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Sniezko R.A., and Hansen E. 2000. Screening and breeding program for genetic resistance to Phytophthora lateralis in Port-Orford-cedar (Chamaecyparis lawsoniana): early results. In Proceedings of the First International Meeting on Phytophthoras in Forest and Wildland Ecosystems (IUFRO Working Party 7.02.09). 30 August-3 September, 1999, Grants Pass, OR. Edited by Hansen E., and Sutton W. Oregon State University, Corvallis, OR. pp. 91–94.
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Sniezko R.A., Hansen E., Bower A., Goheen D.G., Marshall K., Casavan K., and Sutton W. 2000. Genetic resistance of Port-Orford-cedar (Chamaecyparis lawsoniana) to Phytophthora lateralis: results from early field trials. In Proceedings of the First International Meeting on Phytophthoras in Forest and Wildland Ecosystems (IUFRO Working Party 7.02.09). 30 August-3 September, 1999, Grants Pass, OR. Edited by Hansen E., and Sutton W. Oregon State University, Corvallis, OR. pp. 138–140.
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Sniezko R.A., Hansen E., and Goheen D.G. 2000. Prospects for durable resistance to Phytophthora lateralis in Chamaecyparis lawsoniana: early assessment. Poster Presentation. Symposium on Durable Disease Resistance: Key to Sustainable Agriculture. Wageningen, The Netherlands. (2000).
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Sniezko R.A., Hansen E., and Kitzmiller J. 1996. Genetic variation in Phytophthora lateralis resistance in Port-Orford-cedar: Results of artificial inoculation of 346 families from a range-wide collection. Poster Presentation. 1996 Western Forest Genetics Association Meeting, Newport, OR.