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The use of molecular and biochemical tools to assist in the breeding of hazelnuts (Corylus spp.)

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Title
The use of molecular and biochemical tools to assist in the breeding of hazelnuts (Corylus spp.)
Name (type = personal)
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Muehlbauer
NamePart (type = given)
Megan F.
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Megan F. Muehlbauer
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author
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Molnar
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Thomas J
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Thomas J Molnar
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Advisory Committee
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chair
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Simon
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James E
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James E Simon
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Advisory Committee
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internal member
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Honig
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Joshua A
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Joshua A Honig
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Advisory Committee
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internal member
Name (type = personal)
NamePart (type = family)
Hillman
NamePart (type = given)
Bradley I
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Bradley I Hillman
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Advisory Committee
Role
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internal member
Name (type = personal)
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Wadl
NamePart (type = given)
Phillip
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Phillip Wadl
Affiliation
Advisory Committee
Role
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outside member
Name (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB)
degree grantor
Name (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB)
school
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Text
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theses
OriginInfo
DateCreated (qualifier = exact)
2017
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2017-05
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2017
Place
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xx
Language
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eng
Abstract (type = abstract)
Hazelnuts rank 6th in world tree nut production, with approximately 800,000 metric tons produced per year. Commercial hazelnut production in the United States (the third largest producer of hazelnuts in the world) has been limited, due to the fungal pathogen Anisogramma anomala, the causal agent of eastern filbert blight (EFB). Interestingly, A. anomala is most deadly to the European hazelnut species (Corylus avellana), the only species used for commercial production, but is harbored by and does not cause symptoms in the native American species (C. americana). This fungal pathogen invades the vascular system of hazelnuts, girdles branches, and ultimately leads to death of the tree. Control measures to combat EFB are expensive and labor intensive, thus the most cost effective means of combating this disease is the use of disease resistant plant material. The Corylus genus holds 10 additional species, many of which carry EFB resistance. Over the past 15 years, extensive germplasm collection trips have been made to develop a broad hazelnut germplasm collection at Rutgers University, the entirely of which has been screened for resistance to EFB. The purpose of this study was to genetically characterize the novel collection of largely EFB resistant germplasm at Rutgers University using simple sequence repeat (SSR) markers. In addition, these same tools were used to further enhance the utility and better direct the use of this germplasm in the breeding program by performing a population structure analysis of A. anomala isolates collected from the United States and Canada. The final aspect of this dissertation investigates additional Corylus species by conducting a lipid content and profile analysis of four hazelnut species and interspecific hybrids to determine if there is a species effect on important kernel characteristics. Both the hazelnut germplasm collection and A. anomala isolate collection were found to be highly genetically diverse, and the analysis resolved 11 and 22 genetic populations, respectively. It was also found that the lipid content and profiles of hazelnuts will likely not be negatively affected by the introgression of different species into the breeding program. This work has demonstrated that there are a number of diverse sources of resistance in the Rutgers University hazelnut germplasm collection to the exceedingly genetically diverse fungus A. anomala, and introgression of sources of resistance in non C. avellana species will likely not effect commercially important kernel characteristics.
Subject (authority = RUETD)
Topic
Plant Biology
Subject (authority = ETD-LCSH)
Topic
Hazelnuts--Deseases and pests
Subject (authority = ETD-LCSH)
Topic
Eastern filbert blight
RelatedItem (type = host)
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Title
Rutgers University Electronic Theses and Dissertations
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ETD
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ETD_8041
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electronic resource
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application/pdf
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text/xml
Extent
1 online resource (xiii, 193 p. : ill.)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Megan F. Muehlbauer
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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NjNbRU
Identifier (type = doi)
doi:10.7282/T3M61P3R
Genre (authority = ExL-Esploro)
ETD doctoral
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Rights

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The author owns the copyright to this work.
RightsHolder (type = personal)
Name
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Muehlbauer
GivenName
Megan
MiddleName
F.
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RightsEvent
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Permission or license
DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2017-04-14 12:49:51
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Megan Muehlbauer
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Affiliation
Rutgers University. Graduate School - New Brunswick
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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DateTime (encoding = w3cdtf); (qualifier = exact); (point = start)
2017-05-31
DateTime (encoding = w3cdtf); (qualifier = exact); (point = end)
2017-11-30
Type
Embargo
Detail
Access to this PDF has been restricted at the author's request. It will be publicly available after November 30th, 2017.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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2017-04-14T12:43:54
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