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Challenges and opportunities for conservation of forest genetic resources

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Abstract

Increased use of forest resources and a shrinking forestland base threaten the sustainability of forest genetic resources and highlight the importance of conservation and sustainable management of these resources. As forest trees are normally the keystone species of forest ecosystems, their continued existence is essential for many floral and faunal associations of these ecosystems. Major concepts, challenges and opportunities for conservation of forest genetic resources are briefly discussed in this paper. The major challenges include population decline and population structure changes due to forest removal and conversion of forest land to other uses,forest fragmentation, forestry practices, climate change, disease conditions,introduced pests, atmospheric pollution, and introgressive hybridization. Developing scientifically sound conservation strategies, maintaining minimum viable population sizes, and deployment of genetically engineered organisms represent other important challenges in conservation. The usefulness of various biochemical and molecular genetic markers, adaptive traits, and genetic diversity measures for developing conservation strategies for in situ and ex situ genetic resource conservation are also discussed. Major opportunities for conservation of forest genetic resources include: use of molecular genetic markers and adaptive traits for developing conservation strategies; in situ conservation through natural reserves,protected areas, and sustainable forest management practices; ex situ conservation through germplasm banks, common garden archives, seed banks, DNA banks, and tissue culture and cryopreservation; incorporation of disease, pest, and stress tolerance traits through genetic transformation;plantation forestry; and ecological restoration of rare or declining tree species and populations. Forest genetic resource conservation and resource use should be considered complementary rather than contradictory to each other.

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References

  • Adams, W.T., 1992. Gene dispersal within forest tree populations. New Forests 6: 217–240.

    Article  Google Scholar 

  • Ahuja, M.R., 1986. Storage of forest tree germplasm in liquid nitrogen (-196 00B0;C). Silvae Genet 35: 5–6.

    Google Scholar 

  • Bakhtiyarova, R.M., N.V. Starova & A. Yanbaev, 1995. Genetic changes in populations of Scots pine growing under industrial air pollution conditions. Silvae Genet 44: 157–160.

    Google Scholar 

  • Beckerman, J.L. & W.A. Powell, 1991. Partially purified protein extracts isolated from American and Chinese chestnut have antifungal properties against the chestnut blight pathogen. Phytopathology 82: 241.

    Google Scholar 

  • Beardmore, T. & W. Vong, 1998. Role of the cotyledonary tissue in improving low and ultralow temperature tolerance of butternut (Juglans cinerea) embryonic axes. Can J For Res 28: 1–8.

    Article  Google Scholar 

  • Bergmann, F., H.-R. Gregorius & J.B. Larsen, 1990. Levels of genetic variation in European silver fir (Abies alba) - are they related to the species' decline? Genetics 82: 1–10.

    Article  Google Scholar 

  • Bonner, F.T., 1990. Storage of seeds: Potential and limitations for germplasm conservation. For Ecol Manage 35: 35–43.

    Article  Google Scholar 

  • Boucaud, M.T., M. Brison, P. Negrier & M.T. Boucaud, 1994. Cryopreservation of walnut somatic embryos. Cryo-letters 15: 151–160.

    Google Scholar 

  • Brown, A.H.D. & D.J. Schoen, 1992. Plant population genetic structure and biological conservation. In: O.T. Sandlund, K. Hindar & A.H.D. Brown (Eds.), Conservation of Biodiversity for Sustainable Development, pp. 88–104. Scandinavian University Press.

  • Buchert G.P., O.P. Rajora, J.V. Hood & B.P. Dancik, 1997. Effects of harvesting on genetic diversity in old-growth eastern white pine in Ontario, Canada. Conserv Biol 11: 747–758.

    Article  Google Scholar 

  • Burczyk, J., W.T. Adams & J.Y. Shimizu, 1995. Mating patterns and pollen dispersal in a natural knobcone pine (Pinus attenuata Lemmon) stand. Heredity 77: 251–260.

    Article  Google Scholar 

  • Bush, R.M. & P.E. Smouse, 1992. Evidence for the adaptive signi-ficance of allozymes in forest trees. New Forests 6: 179–196.

    Article  Google Scholar 

  • Chase, M.R., C. Moller, R. Kesseli & K.S. Bawa, 1996. Distant gene flow in tropical trees. Nature 383: 398–399.

    Article  CAS  Google Scholar 

  • Cheliak, W.M. G. Murray & J.A. Pitel, 1988. Genetic effects of phenotypic selection in white spruce. For Ecol Manage 24: 139–149.

    Article  Google Scholar 

  • Coates, K.D., 1997. Windthrow damage two years after partial cutting of the Date Creek silvicultural systems study in the Interior Cedar-Hemlock forests of northwestern British Columbia. Can J For Res 27: 1695–1701.

    Article  Google Scholar 

  • Coates, K.D. & P.J. Burton, 1997. A gap-based approach for development of silvicultural systems to address ecosystem management objectives. For Ecol Manage 99: 337–354.

    Article  Google Scholar 

  • Dayanandan, S., O.P. Rajora & K.S. Bawa, 1998. Isolation and characterization of microsatellites in trembling aspen (Populus tremuloides). Theor Appl Genet 96: 950–956

    Article  CAS  Google Scholar 

  • DeHayes, D.H. & G.J. Hawley, 1992. Genetic implications in the decline of red spruce. Water Air Soil Poll 62: 233–248.

    Article  CAS  Google Scholar 

  • El-Kassaby, Y.A., 1992. Domestication and genetic diversity: should we be concerned? Forest Chron 68: 687–700.

    Google Scholar 

  • El-Kassaby, Y.A., 1995. Evaluation of the tree improvement delivery system: factors affecting genetic potential. Tree Physiol 15: 545–550.

    PubMed  Google Scholar 

  • Epperson, B.K. & R.W. Allard, 1989. Spatial autocorrelation analysis of the distribution of genotypes within populations of lodgepole pine. Genetics 121: 369–377.

    PubMed  CAS  Google Scholar 

  • Erikson, G., G. Namkoong & J.H. Roberds, 1993. Dynamic gene conservation for uncertain futures. For Ecol Manage 62: 15–37.

    Article  Google Scholar 

  • Finkeldey, R. & H.-F. Gregorius, 1994. Genetic resources: selection criteria and design. In: Z.-S. Kim & H.H. Hattemer (Eds.), Conservation and Manipulation of Genetic Resources in Forestry, pp. 322–347. Kwang Moon Kag, Seoul.

    Google Scholar 

  • Fowler, D.P., 1965. Effects of inbreeding in red pine, Pinus resinosa Ait. II. Pollination studies. Silvae Genet 14: 12–23.

    Google Scholar 

  • Fowler, D.P., Y.S. Park & A.G. Gordon, 1988. Genetic variation of red spruce in the Maritimes. Can J For Res 18: 703–709.

    Google Scholar 

  • Franklin, E.C., 1970. A survey of mutant forms and inbreeding depression in species of the family Pinaceae. USDA For Serv Res Pap SE-61.

  • Franklin, J.F., 1993. Lessons from old-growth: fuelling controversy and providing direction. J Forestry 91: 10–13.

    Google Scholar 

  • Furnier, G.R., P. Knowles, M.A. Clyde & B.P. Dancik, 1987. Effects of avian seed dispersal on the genetic structure of whitebark pine populations. Evolution 41: 607–612.

    Article  Google Scholar 

  • Geburek, T., 1997. Isozymes and DNA markers in gene conservation of forest trees. Biod Cons 6: 1639–1654.

    Article  Google Scholar 

  • Gilpin, M.E. & M.E. Soule, 1986. Minimum viable populations: processes of species extinction. In: M.E. Soule (Ed.), Conservation Biology: The Science of Scarcity and Diversity, pp. 19–34. Sinauer Assoc., Sunderland, MA.

    Google Scholar 

  • Gomory, D., 1992. Effect of stand origin on the genetic diversity of Norway spruce (Picea abies Karst.) populations. For Ecol Manage 54: 215–223.

    Article  Google Scholar 

  • Gordon, A.G., 1996. The sweep of the boreal in time and space, from forest formation to genes, and implications for management. Forest Chron 72: 19–30.

    Google Scholar 

  • Govindaraju, D.R., 1989. Estimates of gene flow in forest trees. Biol J Linn Soc 37: 345–357.

    Article  Google Scholar 

  • Guries, R.P. & F.T. Ledig, 1982. Genetic diversity and population structure in pitch pine (Pinus rigida (Mill.). Evolution 36: 387–402.

    Article  Google Scholar 

  • Hamrick, J.L. & M.J.W. Godt, 1990. Allozyme diversity in plant species. In: A.H.D. Brown, M.T. Clegg, A.L. Kahler & B.S. Weir. (Eds.), Plant Population Genetics, Breeding, and Genetic Resources, pp. 43–63. Sinauer Associates Inc., Sunderland, MA.

    Google Scholar 

  • Hansen, A.J., T.A. Spies, F.J. Swanson & J.L. Ohmann, 1991. Conserving biodiversity in managed forests. BioScience 41: 382–392.

    Article  Google Scholar 

  • Hanski, I. & M. Gilpin, 1991. Metapopulation dynamics: brief history and conceptual domain. Biol J Linn Soc 42: 3–16.

    Google Scholar 

  • Howard, A.F. & H. Temesgen, 1997. Potential financial returns from alternative silvicultural prescriptions in second-growth stands of coastal British Columbia. Can J For Res 27: 1483–1495.

    Article  Google Scholar 

  • Jorgensen, J., 1994. Application of in vitro techniques for conservation and breeding of oak, beech and horse chestnut. In: Z.-S. Kim & H.H. Hattemer (Eds.), Conservation and Manipulation of Genetic Resources in Forestry, pp. 178–205. Kwang Moon Kag, Seoul.

    Google Scholar 

  • Kim, Z.-S. & H.H. Hattemer (Eds.), Conservation and Manipulation of Genetic Resources in Forestry. Kwang Moon Kag, Seoul.

  • Knowles, P., D.J. Perry & H.A. Foster. 1992. Spatial genetic structure in two tamarack (Larix laricina (Du Roi) K. Koch) populations with differing establishment histories. Evolution 46: 572–576.

    Article  Google Scholar 

  • Kuang, H., T.E. Richardson, S.D. Carson & B.C. Bongarten, 1998. An allele responsible for seedling death in Pinus radiata D. Don. Theor Appl Genet 96: 640–644.

    Article  CAS  Google Scholar 

  • Lande, R., 1988. Genetics and demography in biological conservation. Science 241: 145–1460.

    Google Scholar 

  • Leberg, P.L., 1992. Effects of population bottlenecks on genetic diversity as measured by allozyme electrophoresis. Evolution 46: 477–494.

    Article  Google Scholar 

  • Ledig, F.T., 1986. Conservation strategies for forest gene resources. For Ecol Manage 14: 77–90.

    Article  Google Scholar 

  • Ledig, F.T., 1988. The conservation of diversity in trees. BioScience 38: 471–479.

    Article  Google Scholar 

  • Ledig, F.T., C.I. Millar & L.A. Riggs (Editors), 1990. Special issue: conservation of diversity in forested ecosystems. For Ecol Manage 35: 1–197.

    Google Scholar 

  • Levin, B.R., 1992. DNA technology and the release of genetically engineered organisms: some implications for the conservation of genetic resources. In: O.T. Sandlund, K. Hindar & A.H.D. Brown (Eds.), Conservation of Biodiversity for Sustainable Development, pp. 245–259. Scandinavian University Press.

  • Linhart, Y.B., J.B. Mitton, K.B. Sturgeon & M.L. Davis, 1981. Genetic variation in space and time in a population of Ponderosa pine. Heredity 46: 407–426.

    Google Scholar 

  • Loo, J., 1999. Development of conservation strategies for New Brunswick trees at risk. Unpublished file report, Canadian Forest Service.

  • Marshall, D.R. & A.H.D. Brown, 1975. Optimum sampling strategies in genetic conservation. In: O.H. Frankel & J.G. Hawkes (Eds.), Crop Genetic Resources for Today and Tomorrow, pp. 53–80. Cambridge University Press, London.

    Google Scholar 

  • Millar, C.I. & R.D. Westfall, 1992. Allozyme markers in forest genetic conservation. New Forests 6: 347–371.

    Article  Google Scholar 

  • McComb, W.C., T.A. Spies, W.H. Emmingham, 1993. Douglas-fir forests. Managing for timber and mature forest habitat. J For 91: 31–42.

    Google Scholar 

  • Morgenstern, E.K., A.G. Corriveau & D.P. Fowler, 1981. A provenance test of red spruce in nine environments in eastern Canada. Can J For Res 11: 124–131.

    Google Scholar 

  • Mosseler, A., 1992. Life history and genetic diversity in red pine: implications for gene conservation in forestry. For Chron 68: 701–708.

    Google Scholar 

  • Mosseler, A., K.N. Egger & G.A. Hughes, 1992. Low levels of genetic diversity in red pine confirmed by random amplified polymorphic DNA markers. Can J For Res 22: 1332–1337.

    Article  CAS  Google Scholar 

  • Mosseler, A. & O.P. Rajora, 1998. Monitoring population viability in declining tree species using indicators of genetic diversity and reproductive success. In: K. Sassa (Ed.), Environmental Forest Science, pp. 333–344. Kluwer Academic Publishers, Dordrecht.

    Google Scholar 

  • Mosseler, A., J.E. Major, D. Simpson, B. Daigle, K. Lange, K. Johnsen, Y.S. Park & O.P. Rajora, 2000. Indicators of population viability in red spruce: I. Reproductive traits and fecundity. Can J Bot 78: 928–940.

    Article  Google Scholar 

  • Müller-Starck, G., 1985. Genetic differences between ‘tolerant’ and ‘sensitive’ beeches (Fagus sylvatica L.) in an environmentally stressed adult forest stand. Silvae Genet 34: 241–247.

    Google Scholar 

  • Namkoong, G., 1997. A gene conservation plan for loblolly pine. Can J For Res 27: 433–437.

    Article  Google Scholar 

  • Neale, D.B., 1985. Genetic implications of shelterwood regeneration of Douglas-fir in southwestern Oregon. For Sci 31: 995–1005.

    Google Scholar 

  • Neale, D.B., K.D. Jermstad, M.M. Sewell & N.C. Wheeler, 1997. Progress towards detecting and verifying QTLs for wood property traits in loblolly pine and adaptive traits in Douglas fir. Proc. 26thMeeting Canadian Tree Improvement Association, pp. 52–56. Natural Resources Canada, Fredericton, N.B.

  • Nei, M., 1972. Genetic distance between populations. American Natur 106: 27–40.

    Google Scholar 

  • Oleksyn, J., W. Prus-Glowacki, M. Giertych & P.B. Reich, 1994. Relation between genetic diversity and pollution impact in a 1912 experiment with east European Pinus sylvestris provenances. Can J For Res 24: 2390–2394.

    Google Scholar 

  • Oliver, C.D. & B.C. Larson, 1990. Forest Stand Dynamics. McGraw Hill, New York, USA.

    Google Scholar 

  • Ostry, M.E., M.E. Mielke & D.D. Skilling, 1994. Butternut - Strategies for managing a threatened tree. USDA For Serv Gen Tech Rep NC-165. 7 pp.

  • Paglia, G., P. Olivieri & M. Morgante, 1998. Towards secondgeneration STS (sequence-tagged sites) linkage maps in conifers: a genetic map of Norway spruce (Picea abies K.). Mol Gen Genet 258: 466–478.

    Article  PubMed  CAS  Google Scholar 

  • Park, Y.S. & D.P. Fowler, 1982. Effects of inbreeding and genetic variance in a natural population of tamarack (Larix laricina (Du Roi) K. Koch) in eastern Canada. Can J For Res 14: 909–913.

    Google Scholar 

  • Pence, V.C., 1992. Dessication and the survival of Aesculus, Castanea, and Quercus embryo axes through cryopreservation. Cryobiology 29: 391–399.

    Article  Google Scholar 

  • Raddi, S., F.M. Stefanini, A. Camussi & R. Giannini, 1994. Forest decline index and genetic variability in Picea abies (L.) Karst. Forest Genet 1: 33–40.

    Google Scholar 

  • Rahman, M.H., S. Dayanandan & O.P. Rajora, 2000. Microsatellite DNA markers in Populus tremuloides. Genome 43: 293–297.

    Article  PubMed  CAS  Google Scholar 

  • Rajora, O.P., 1990. Marker allozyme genes and alleles for differentiation of Populus deltoides, P. nigra, P. maximowiczii and their interspecific hybrids. Can J Bot 68: 990–998.

    Google Scholar 

  • Rajora, O.P., 1999a. Genetic biodiversity impacts of silvicultural practices and phenotypic selection in white spruce. Theor Appl Genet 99: 954–961.

    Article  CAS  Google Scholar 

  • Rajora, O.P., 1999b. Molecular biology in sustainable forest management. In: S. Espinel & E. Ritter (Eds.), Proceedings of Application of Biotechnology to Forest Genetics, pp. 29–40. BioFor99. September 22–25, 1999, Vitoria-Gasteiz, Spain.

  • Rajora, O.P. & B.P. Dancik, 1995. Chloroplast DNA variation in Populus. II. Interspecific restriction fragment polymorphisms and genetic relationships among Populus deltoides, P. nigra, P. × canadensis, and P. maximowiczii. Theor Appl Genet 90: 324–330.

    CAS  Google Scholar 

  • Rajora, O.P. & B.P. Dancik, 2000. Population genetic variation, structure and evolution in Engelmann spruce, white spruce and their natural hybrid complex in Alberta. Can J Bot 78: 768–780.

    Article  Google Scholar 

  • Rajora, O.P. & A. Mosseler, 2000. Molecular markers in sustainable management, conservation, and restoration of forest genetic resources. In: G. Mueller-Starck (Ed.), Genetic Response of Forest Systems to Changing Environmental Conditions. Kluwer Academic Publishers, Dordrecht, The Netherlands.

    Google Scholar 

  • Rajora, O.P. & S. Pluhar, 2000. Allozyme genetic diversity and impacts of alternative silvicultural practices and natural disturbance on genetic diversity in black spruce. Manuscript in preparation.

  • Rajora, O.P., L. DeVerno, A. Mosseler & D. Innes, 1998. Genetic diversity and population structure of disjunct Newfoundland and central Ontario populations of eastern white pine (Pinus strobus L.). Can J Bot 76: 500–508.

    Article  Google Scholar 

  • Rajora, O.P., A. Mosseler & J.E. Major, 2000a. Indicators of population viability in red spruce. II. Genetic diversity, population structure, and mating behavior. Can J Bot 78: 941–956.

    Article  Google Scholar 

  • Rajora, O.P., M.H. Rahman, G.P. Buchert & B.P. Dancik, 2000b. Microsatellite DNA analysis of genetic effects of harvesting in old-growth eastern white pine (Pinus strobus) in Ontario, Canada. Molec Ecol 9: 339–348.

    Article  CAS  Google Scholar 

  • Rajora, O.P., M.H. Rahman, S. Dayanandan & A. Mosseler, 2000c. Isolation, characterization, inheritance and linkage of microsatellite DNA markers in white spruce (Picea glauca) and their usefulness in other spruce species. Mol Gen Genet (in press).

  • Rajora, O.P., L. Zsuffa & B.P. Dancik, 1991. Allozyme and leaf morphological variation of eastern cottonwood at the northern limits of its range in Ontario. For Sci 37: 688–702.

    Google Scholar 

  • Ryynanen, L., 1996. Survival and regeneration of dormant silver birch buds stored at super-low temperature. Can J For Res 26: 617–623.

    Google Scholar 

  • Roane, M.K., G.J. Griffin & J.R. Elkins, 1986. Chestnut Blight, Other Endothis Diseases, and the Genus Endothia. APS Press. St. Paul, Minnesota. 53 pp.

    Google Scholar 

  • Savolainen, O. & K. Karkkainen, 1992. Effect of forest management on gene pools. New Forests 6: 329–345.

    Article  Google Scholar 

  • Shaffer, M.L., 1981. Minimum population sizes for species conservation. BioSci 31: 131–134.

    Article  Google Scholar 

  • Schnabel, A. & J.L. Hamrick, 1995. Understanding the population genetic structure of Gleditsia triacanthus L.: the scale and pattern of pollen gene flow. Evolution 49: 921–931.

    Article  Google Scholar 

  • Scholz, F. & F. Bergmann. 1994. Genetic effects of environmental pollution on tree populations. In: Z.-S. Kim & H.H. Hattemer (Eds.), Conservation and Manipulation of Genetic Resources in Forestry, pp. 34–50. Kwang Moon Kag, Seoul.

    Google Scholar 

  • Slatkin, M., 1985. Gene flow in natural populations. Ann Rev Ecol Syst 16: 393–430.

    Article  Google Scholar 

  • Sorensen F.C., 1969. Embryonic genetic load in coastal Douglas-fir, Pseudotsuga menziesii var. menziesii. Am Nat 103: 389–398.

    Article  Google Scholar 

  • Stoehr, M.U. & Y. El-Kassaby, 1997. Levels of genetic diversity at different stages of the domestication cycle of interior spruce in British Columbia. Theor Appl Genet 94: 83–90.

    Article  CAS  PubMed  Google Scholar 

  • Streiff, R., T. Labbe, R. Bacilieri, H. Steinkeller, J. Glossl & A. Kremer, 1998. Within-population genetic structure in Quercus robur L. and Quercus petraea (Matt.) Liebl. assessed with isozymes and microsatellites. Molec Ecol 7: 317–328.

    Article  Google Scholar 

  • Streiff, R., A. Ducousso, C. Lexer, H. Steinkellner, J. Gloessl & A. Kremer, 1999. Pollen dispersal inferred from paternity analysis in a mixed oak stand of Quercus robur L. and Q. petraea (Matt.) Liebl. Molec Ecol 8: 831–841.

    Article  Google Scholar 

  • US Committee on the Genetic Vulnerability of Major Crops, 1972. Genetic Vulnerability of Major Crops. National Academy of Sciences, Washington, DC.

    Google Scholar 

  • Wagner, D.B., 1992. Nuclear, chloroplast and mitochondrial polymorphisms as biochemical markers in population genetic analyses of forest trees. New Forests 6: 373–390.

    Article  Google Scholar 

  • Wang, B.S.P., 1974. Tree Seed Storage. Dept Environ, Can For Serv Publ No. 1335.

  • Wang, B.S.P., P.J. Charest & B. Downie, 1993. Ex situ storage of seeds, pollen, and in vitro cultures of perennial woody plant species. FAO Forestry Paper, No. 113, 83 pp.

  • Wheeler, N.C. & R.P. Guries, 1982. Population structure, genic diversity and morphological variation in Pinus contorta Dougl. Can J For Res 12: 595–606.

    Google Scholar 

  • Wilcove, D.S., 1989. Protecting biodiversity in multiple-use lands: lessons from the U.S. Forest Service. Trends Ecol Evol 4: 385–388.

    Article  Google Scholar 

  • Williams, C.G., 1999. The peculiarities of pine genomes. Plant and Animal Genome VII Conference, January 17–21, 1999, San Diego, California.

  • Williams, C.G., J.L. Hamrick & P.O. Lewis, 1995. Multiplepopulation versus hierarchical conifer breeding program: a comparison of genetic diversity levels. Theor Appl Genet 90: 584–594.

    Google Scholar 

  • Yang, R.-C. & F.C. Yeh, 1992. Genetic consequences of in situ and ex situ conservation of forest trees. Forest Chron 68: 720–729.

    Google Scholar 

  • Yazdani, R. & D. Lindgren, 1992. Gene dispersion after natural regeneration under a widely-spaced seed tree stand of Pinus sylvestris (L.). Silvae Genet 41: 1–5.

    Google Scholar 

  • Yazdani, R., D. Lindgren & S. Stewart, 1989. Gene dispersion within a population of Pinus sylvestris. Scand J For Res 4: 295–306.

    Article  Google Scholar 

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  1. Department of Biology, Life Sciences Centre, Dalhousie University, Halifax, Nova Scotia, B3H 4J1, Canada

    Om P. Rajora

  2. BioGenetica Inc., Edmonton, Alberta, Canada

    Om P. Rajora

  3. Canadian Forest Service, Atlantic Forestry Centre, P.O. Box 4000, Fredericton, NB, E3B 5P7, Canada

    Alex Mosseler

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Rajora, O.P., Mosseler, A. Challenges and opportunities for conservation of forest genetic resources. Euphytica 118, 197–212 (2001). https://doi.org/10.1023/A:1004150525384

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