{"id":{"repo_id":"utc","oai_identifier":"oai:scholar.utc.edu:theses-1807"},"canonical_url":"https://search.dev.ndltd.org/etd/utc/oai:scholar.utc.edu:theses-1807","repository":{"repo_id":"utc","name":"University of Tennessee - Chattanooga","base_url":"https://scholar.utc.edu/do/oai/"},"display":{"title":"Accelerated, graft-based germplasm conservation of American chestnut (Castanea dentata) in the South","abstract":"Asexual propagation through grafting is a low-tech, noninvasive method for conservation of rare American chestnut germplasm. Particularly when in situ conditions prevent trees from reaching sexual maturity, graft-propagation allows release from shade conditions and disease pressure to promote flowering. Collection of pollen from containerized grafted trees allows conservation of genetic resources that were previously unavailable to breeders or difficult to access. Additionally, the use of high light environments may be able to reduce the generation time needed to develop a population of disease-resistant trees for restoration. As many new American chestnut individuals are required to advance both the current American Chestnut Foundation (TACF) backcross breeding program and the potential transgenic outcross program, the use of these methods provides an important proof of concept: accelerated conservation of novel genotypes from under-sampled southern populations is possible though graft propagation and the use of high light conditions.","abstract_html":"Asexual propagation through grafting is a low-tech, noninvasive method for conservation of rare American chestnut germplasm. Particularly when in situ conditions prevent trees from reaching sexual maturity, graft-propagation allows release from shade conditions and disease pressure to promote flowering. Collection of pollen from containerized grafted trees allows conservation of genetic resources that were previously unavailable to breeders or difficult to access. Additionally, the use of high light environments may be able to reduce the generation time needed to develop a population of disease-resistant trees for restoration. As many new American chestnut individuals are required to advance both the current American Chestnut Foundation (TACF) backcross breeding program and the potential transgenic outcross program, the use of these methods provides an important proof of concept: accelerated conservation of novel genotypes from under-sampled southern populations is possible though graft propagation and the use of high light conditions.","abstract_has_math":false,"creators":["Deason, Trent"],"institution":"University of Tennessee at Chattanooga","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Craddock, J. Hill","Boyd, Jennifer; Barbosa, Jose","College of Arts and Sciences"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2021,"date_issued":"2021-06-01T07:00:00Z","date_published":"2021-06-01T07:00:00Z","updated_at":"2026-07-24T05:46:59Z","subjects":["American chestnut","American chestnut -- germplasm resources","Grafting","Plants -- Effect of light on"],"languages":["English","eng"],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://scholar.utc.edu/theses/650","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Craddock, J. 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S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science."]},{"key":"dc:description.abstract","label":"Abstract","values":["Asexual propagation through grafting is a low-tech, noninvasive method for conservation of rare American chestnut germplasm. Particularly when in situ conditions prevent trees from reaching sexual maturity, graft-propagation allows release from shade conditions and disease pressure to promote flowering. Collection of pollen from containerized grafted trees allows conservation of genetic resources that were previously unavailable to breeders or difficult to access. Additionally, the use of high light environments may be able to reduce the generation time needed to develop a population of disease-resistant trees for restoration. As many new American chestnut individuals are required to advance both the current American Chestnut Foundation (TACF) backcross breeding program and the potential transgenic outcross program, the use of these methods provides an important proof of concept: accelerated conservation of novel genotypes from under-sampled southern populations is possible though graft propagation and the use of high light conditions."]},{"key":"dc:title","label":"Title","values":["Accelerated, graft-based germplasm conservation of American chestnut (Castanea dentata) in the South"]}]}],"canonical_facts":{"dc:contributor":["Craddock, J. Hill","Boyd, Jennifer; Barbosa, Jose","College of Arts and Sciences"],"dc:creator":["Deason, Trent"],"dc:date":["2020-05-01T07:00:00Z"],"dc:date.available":["2021-06-01T07:00:00Z"],"dc:description":["Dept. of Biological and Environmental Sciences","M. S.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Science."],"dc:description.abstract":["Asexual propagation through grafting is a low-tech, noninvasive method for conservation of rare American chestnut germplasm. Particularly when in situ conditions prevent trees from reaching sexual maturity, graft-propagation allows release from shade conditions and disease pressure to promote flowering. Collection of pollen from containerized grafted trees allows conservation of genetic resources that were previously unavailable to breeders or difficult to access. Additionally, the use of high light environments may be able to reduce the generation time needed to develop a population of disease-resistant trees for restoration. As many new American chestnut individuals are required to advance both the current American Chestnut Foundation (TACF) backcross breeding program and the potential transgenic outcross program, the use of these methods provides an important proof of concept: accelerated conservation of novel genotypes from under-sampled southern populations is possible though graft propagation and the use of high light conditions."],"dc:identifier":["https://scholar.utc.edu/theses/650"],"dc:language":["English","eng"],"dc:publisher":["University of Tennessee at Chattanooga","Chattanooga (Tenn.)"],"dc:relation":["Masters Theses and Doctoral Dissertations"],"dc:rights":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:subject":["American chestnut","American chestnut -- germplasm resources","Grafting","Plants -- Effect of light on"],"dc:title":["Accelerated, graft-based germplasm conservation of American chestnut (Castanea dentata) in the South"],"dc:type":["Masters theses","Text"]},"updated_at":"2026-07-24T05:46:59Z"}