Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 311 for “"QTL"”.
-
Allele-Specic QTL fine-mapping with PLASMA
… to improve detection of quantitative trait loci (QTLs) with causal effects on molecular traits. In simulations, PLASMA accurately prioritizes causal QTL variants over a wide range of genetic architectures. Applied to RNA-Seq data from 524 kidney tumor samples, PLASMA achieves a greater power at 50 …
-
Confirming QTL for seed yield from exotic soybean germplasm
… methods have been used. Quantitative trait loci (QTL) mapping has been used to identify genetic regions within PIs that could contribute both genetic diversity and improved seed yield potential in the N.A. gene pool. Of the putative QTL for seed yield that have been identified, only a small …
-
Genomic changes underlying disease resistance and high protein QTL
Underlying genomic changes to disease resistance QTL cqSCN-006 and cqSCN-007 Soybean Cyst Nematode (SCN) is the most devastating pest of Glycine max (soybean). Currently control of SCN is through planting of non-host crops and the use of disease-resistant soybean germplasm containing resistance …
-
Marker-Qtl Associations: Comparisons of Genetic Background Effects in Maize
… 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 …
-
EVALUATION OF SCAB RESISTANCE QUANTITATIVE TRAIT LOCI (QTL) EFFECTS ON WHEAT
… backcrossing. Three FHB resistance QTL on chromosomes 3BS, 2DL, and 5A were introgressed from non-adapted Ning7840 into the elite soft red winter wheat McCormick. The objective of this study was to evaluate the effects of QTL singly and in combination on FHB resistance. The 3BS+2DL …
-
Epistasis and Other Factors Influencing the Detection of Marker-Qtl Associations
Marker-QTL associations over two breeding cycles in a sweet corn pedigree breeding program were tested. Eight and six marker loci associated with QTL influencing field emergence and eating quality uncovered in previous studies were subjected to a second cycle of pedigree breeding. Only two of the …
-
QTL Mapping and Molecular Dissection of Meat Quality Traits in Swine
… determinants known as quantitative trait loci (QTL). To facilitate fine-mapping of swine QTL, a ∼1 Mb-resolution human-pig comparative map, composed of 2,274 markers in 34 linkage groups, was constructed using the radiation hybrid method. Comparative analyses revealed 51 conserved synteny …
-
Characterization of malus germplasm and QTL mapping of fruit quality traits
… location of quantitative trait loci (QTL) can lead to the development of markers for marker assisted breeding. By selecting for markers closely linked to significant QTL, early selection can efficiently increase the probability of selecting cultivars that have positive fruit-quality …
-
NESTED ASSOCIATION MAPPING TO IDENTIFY SEED COMPOSITION QTL IN DIVERSE SOYBEAN LINES
Soybeans are economically the most important legume grown worldwide. It provides quality protein and oil to food and feed markets in addition to being used for industrial products. The value of soybean could be enhanced by increasing protein, oil, and sucrose contents, while lowering …
-
Combining and mapping QTL for fusarium head blight (FHB) resistance in wheat
… for frequency of initial infection and map QTLs for type I resistance. For objective 1, QTL from Sumai3 on chromosome 3B (Fhb1), from tall wheatgrass on 7EL (Qfhs.pur-7EL), and from Goldfield together provided high resistance, whereas epistatic interactions among those three QTL resulted in …
-
Identification and characterization of metabolic Quantitative Trait Loci (QTL) in Arabidopsis thaliana
… of 157 metabolic quantitative trait loci (mQTL), genetic regions carrying genes, which are relevant for metabolite abundance. By analyzing several hundred test crosses of RILs and ILs it was further possible to identify 385 heterotic metabolic QTL (hmQTL). Within the scope of this work a …
-
QTL mapping of Phytophthora root rot resistance and aphid resistance in soybean
… project, two major quantitative trait loci (QTLs) for soybean aphid resistance were detected and confirmed in E08934, derived from a wild type soybean, Glycine soja. Aphid resistance phenotyping was conducted one season in the greenhouse and three seasons in field cages. The broad-sense …
-
Use of QTL identified in breed crosses for genetic improvement in pigs
<p>Strategies for the exploitation of multiple QTL identified in breed crosses for genetic improvement of livestock were examined through marker-assisted introgression (MAI) and marker-assisted selection (MAS). Evaluation of the effectiveness of alternate strategies for MAI and MAS were carried out …
-
Fine Mapping and Evolution of a QTL Region on Cattle Chromosome 3
… to define linkage disequilibrium (LD) within the QTL critical region. There were 15 LD blocks found to be shared among all three sires, covering 0.5 Mbp within the 9.7 Mbp region. These regions may contain QTL alleles carried by all three sires. Fst analysis and integrated haplotype scores (iHS) …
-
Identification of QTL and candidate genes for plant density tolerance in maize
… of identifying quantitative trait loci (QTL) and candidate genes for plant density tolerance. Yield trials were grown at a high plant density of 116,140 plants ha-1 (47,000 plants per acre [ppA]), and planted in five environments over 2012 and 2013. Grain yield and a total of 33 agronomic …
-
Transcriptional variation in muscle from cattle with alternative NCAPG/LCORL QTL genotypes
The NCAPG/LCORL locus is a major QTL on bovine chromosome 6 (BTA6) that influences growth and composition in cattle. Genetic variation at this locus is associated with alterations in the developmental program of individuals throughout life that may be detected through transcriptional variation. …
-
Identification of Native FHB Resistance QTL in the SRW Wheat Cultivar Jamestown
… FHB. Some of the major quantitative trait loci (QTL) for FHB resistance identified to date have been from exotic sources such as 'Sumai3' and the Chinese landrace Wangshuibai, and native resistance has been identified in North American cultivars such as Ernie and Truman which are being used in …
-
Quantitative Trait Loci (Qtl) Analysis Of Sulfur Sensitivity In Vitis Aestivalis-Derived 'Norton'
… respectively. A major quantitative trait loci (QTL) for sulfur sensitivity was detected on linkage group 14 (LOD=15). Identification of this QTL will allow future grape breeding programs produce commercially suitable hybrids, which do not display sulfur sensitivity, via marker assisted selection …
-
Evaluation of soybean aphid resistance, yield qtl confirmation, and genetic gain in soybean
… environment than older cultivars. Yield QTL Confirmation in Soybean Increasing yield is one of the primary objectives that breeders are working to improve in soybean. After initial mapping, yield quantitative trait loci (QTL) should be validated, confirming that the QTL are true yield …
Page 1 of 16