Genetics of the Arabidopsis Inflorescence Replacement Program

Sano, Cecile M.

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https://hdl.handle.net/2142/87059 Copy

Description

Title

Genetics of the Arabidopsis Inflorescence Replacement Program

Author(s)

Sano, Cecile M.

Issue Date

2009

Doctoral Committee Chair(s)

Jacobs, Thomas W.

Department of Study

Plant Biology

Discipline

Plant Biology

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

Biology, Plant Physiology

Language

eng

Abstract

The long-term goal of this project is to characterize the genes responsible for IRP variation in Arabidopsis. The research presented here began by surveying accessions from a collection of geographically diverse Arabidopsis accessions. Five major phenotypic clusters within 85 accessions were identified. High heritability was seen for IRP phenotypes among the 85 genotypes. Principal component analysis (PCA) suggested several distinct IRP strategies within each cluster. Twelve accessions that represented each cluster were chosen and intercrossed in a partial diallel design with the ultimate aim of mapping quantitative trait loci (QTL) in the populations derived from these crosses. Owing to time constraints, a Bay x Sha recombinant inbred (RI) population rather than the diallel progeny was used to map QTL for IRP traits. A total of 11 QTL were detected for IRP traits, and several candidate genes involved in the apical dominance were identified near the QTL.

Graduation Semester

2009

Type of Resource

text

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http://hdl.handle.net/2142/87059

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