University of Illinois Urbana-Champaign

Marker-Qtl Associations: Comparisons of Genetic Background Effects in Maize

Kerns, Michael Richard

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Description

Title
Marker-Qtl Associations: Comparisons of Genetic Background Effects in Maize
Author(s)
Kerns, Michael Richard
Issue Date
1998
Doctoral Committee Chair(s)
Dudley, John W.
Department of Study
Agronomy
Discipline
Agronomy
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Molecular
Language
eng
Abstract
The third chapter was a study of the usefulness of several multivariate statistical techniques not commonly used in crop sciences for identification of marker alleles associated in some manner to QTL. Data from the S$\sb {4:6}$ lines per se and crosses to the Stiff Stalk and Lancaster testers were used for three traits. K-Means clustering and biplots, a form of perceptual mapping, were used. K-Means clustering is a useful tool for identifying favorable and unfavorable profiles of alleles across traits. Biplots were difficult to interpret because of the large number of data points.
Graduation Semester
1998
Type of Resource
text
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http://hdl.handle.net/2142/87671

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Dissertations and Theses - Agronomy