Identification of QTLs Associated with Root Architectural Pattern during Domestication of Common Bean (Phaseolus Vulgaris L.)

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Material Information

Title:
Identification of QTLs Associated with Root Architectural Pattern during Domestication of Common Bean (Phaseolus Vulgaris L.)
Physical Description:
1 online resource (190 p.)
Language:
english
Creator:
Singh, Jugpreet
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Doctorate ( Ph.D.)
Degree Grantor:
University of Florida
Degree Disciplines:
Horticultural Sciences
Committee Chair:
VALLEJOS,CARLOS E
Committee Co-Chair:
SETTLES,ANDREW M
Committee Members:
OLMSTEAD,JAMES W
HOCHMUTH,GEORGE J,II

Subjects

Subjects / Keywords:
domestication -- gbs -- phenotyping -- qtl -- root
Horticultural Sciences -- Dissertations, Academic -- UF
Genre:
Horticultural Sciences thesis, Ph.D.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
Domestication of crop plants involves the selection for the most desirable phenotypes, and results in the alteration of allele frequencies of certain target loci. Previous analyses of domestication have mainly focused on above-ground plant organs, while root traits have been largely neglected mainly due to the visual inaccessibility of this organ. However, it is very likely that some domestication-associated changes in root growth and architecture might have happened as a consequence of selection for above-ground plant parts as these organs operate in functional equilibrium with each other. Thus, we hypothesized that domestication of the common bean brought about changes in root traits controlled by two types of genes, one that controls root growth only, while the other regulates the functional balance between root and shoot. We have performed a QTL analysis using a recombinant inbred population derived from a cross between a landrace (G19833) and a wild accession (G23419), both from the Andean gene pool. A SNP-based linkage map was constructed using the genotyping-by-sequencing (GBS) approach. Time series root images were collected using a novel 2-dimensional phenotyping platform. Phenotypic and genotyping information was used to identify various root and shoot related QTLs. Like previous domestication studies, QTLs for different traits were clustered on various genomic regions.
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Jugpreet Singh.
Thesis:
Thesis (Ph.D.)--University of Florida, 2014.
Local:
Adviser: VALLEJOS,CARLOS E.
Local:
Co-adviser: SETTLES,ANDREW M.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2016-05-31

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2014
System ID:
UFE0046584:00001