QTL analysis for genes conferring tolerance to drought stress and damage from UV-B radiation
- UNCW Author/Contributor (non-UNCW co-authors, if there are any, appear on document)
- Henry L. Richbourg (Creator)
- Institution
- The University of North Carolina Wilmington (UNCW )
- Web Site: http://library.uncw.edu/
- Advisor
- Ann Stapleton
Abstract: A mapping experiment has been carried out on the IMB94 recombinant inbred maize population seeking loci that confer tolerance to drought stress, UV-B stress, and the combination of both. The effects of drought, UV-B radiation, and the combination of both on four general traits in maize seedlings were measured under greenhouse conditions and analyzed using QTL Network and Chromoscan software. Trait measurements indicated a seasonal affect on growth which was adjusted for by standardizing trait data by the median of corresponding parental ‘check plants’. Non-adjusted and adjusted QTL Network analyses identified 19 QTLs with 5 epistatic interactions and 6 QTLs with 2 epistatic interactions, respectively while Chromoscan analysis identified 123 single locus QTLs. Results from these analyses suggest that QTLs for drought and UV-B tolerance exist across the entire genome and are somewhat more common than QTLs for tolerance to the combination of both stresses.
QTL analysis for genes conferring tolerance to drought stress and damage from UV-B radiation
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Created on 1/1/2009
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Additional Information
- Publication
- Thesis
- A Thesis Submitted to the University of North Carolina at Wilmington in Partial Fulfillment of the Requirement for the Degree of Masters of Science
- Language: English
- Date: 2009
- Keywords
- Corn--Drought tolerance, Corn--Effect of ultraviolet radiation on, Corn--Genetics, Corn--Effect of drought on
- Subjects
- Corn -- Genetics
- Corn -- Effect of ultraviolet radiation on
- Corn -- Effect of drought on
- Corn -- Drought tolerance