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Loria, Kristen Mazourek, Michael Smart, Christine Smith, Margaret 2021-09-09T17:38:00Z 2021-09-09T17:38:00Z 2021-05 ProQuest Submission ID: 11165 ProQuest Publication ID: 28492062 https://hdl.handle.net/1813/109670 https://doi.org/10.7298/ss9f-be54 15049530 148 pages Dry common bean (Phaseolus vulgaris L.) is an important but underutilized staple crop for regional food systems in the Northeastern United States. Plant breeding can help to develop improved varieties that meet regional farmer needs while providing a compelling product for modern consumers. One strategy is the expansion of disease resistance and improved agronomic performance to non-commodity, heirloom-like market classes that hold potential for increased consumer engagement and higher grower returns. To this end, Chapter II describes efforts to combine important disease resistance for three major pathogens in the northeastern United States as well as favorable agronomic traits such as yield and upright growth habit into two heirloom varieties with unique seed coat phenotypes, using a marker-assisted selection model. The four targeted diseases were common bacterial blight, caused by Xanthamonas campestris pv. phaseoli, anthracnose, caused by Colletotrichum lindemuthianum, and Bean common mosaic virus. In the interest of future food security, in the Northeast and elsewhere, access to genetically diverse germplasm with locally or regionally adaptive traits is crucial. Decentralized networks of seed savers and regional seed companies in North America are an underutilized resource for important and useful genetic material. Chapter III analyzes genotypic and phenotypic diversity of 18 seed sources of ‘Jacob’s Cattle’ dry bean across seed saver networks. Significant genotypic and phenotypic divergence was identified, indicating that North American seed saver networks are a significant repository of in-situ germplasm conservation. en Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ edible bean genetic diversity organic plant breeding regional adaptation regional food systems Improvement of common bean (Phaseolus vulgaris L.) for regional food systems in the northeastern United States dissertation or thesis https://newcatalog.library.cornell.edu/catalog/15049530 application/pdf Plant Breeding Cornell University Master of Science M.S., Plant Breeding https://hdl.handle.net/1813/59810 Publication Cornell Theses and Dissertations Loria, Kristen 5893a6ea-7af3-41d7-abc6-04bcd26ab5df open.access open.access <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="0b10676c-c1c6-4431-82af-52fb4e9f08af"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>en</Language> <Title>Improvement of common bean (Phaseolus vulgaris L.) for regional food systems in the northeastern United States</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2021-05</PublicationDate> <DOI>https://doi.org/10.7298/ss9f-be54</DOI> <Authors> <Author> <DisplayName>Loria, Kristen</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <OrgUnit /> </Publisher> </Publishers> <License>https://creativecommons.org/licenses/by/4.0/</License> <Keyword>edible bean</Keyword> <Keyword>genetic diversity</Keyword> <Keyword>organic plant breeding</Keyword> <Keyword>regional adaptation</Keyword> <Keyword>regional food systems</Keyword> <Abstract>Dry common bean (Phaseolus vulgaris L.) is an important but underutilized staple crop for regional food systems in the Northeastern United States. Plant breeding can help to develop improved varieties that meet regional farmer needs while providing a compelling product for modern consumers. One strategy is the expansion of disease resistance and improved agronomic performance to non-commodity, heirloom-like market classes that hold potential for increased consumer engagement and higher grower returns. To this end, Chapter II describes efforts to combine important disease resistance for three major pathogens in the northeastern United States as well as favorable agronomic traits such as yield and upright growth habit into two heirloom varieties with unique seed coat phenotypes, using a marker-assisted selection model. The four targeted diseases were common bacterial blight, caused by Xanthamonas campestris pv. phaseoli, anthracnose, caused by Colletotrichum lindemuthianum, and Bean common mosaic virus. In the interest of future food security, in the Northeast and elsewhere, access to genetically diverse germplasm with locally or regionally adaptive traits is crucial. Decentralized networks of seed savers and regional seed companies in North America are an underutilized resource for important and useful genetic material. Chapter III analyzes genotypic and phenotypic diversity of 18 seed sources of ‘Jacob’s Cattle’ dry bean across seed saver networks. Significant genotypic and phenotypic divergence was identified, indicating that North American seed saver networks are a significant repository of in-situ germplasm conservation.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>