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.
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Showing 1 to 20 of 23 for “"genetic linkage map"”.
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Development of a Genetic Linkage Map of Broccoli and Identification of QTL Associated With Glucosinolate Variability
… experiment then demonstrates how the broccoli genetic linkage map can be used to identify genetic factors affecting qualitative and quantitative differences in health promoting compounds. QTL analysis in this experiment identified seven QTL on six linkage groups associated with the variability …
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Development of microsatellite (SSR) marker multiplexes for future construction of a genetic linkage map for pear (Pyrus communis L.)
Recent advances in the field of plant genetics and application of molecular technologies has lead to greater understanding of various crop genomes and their organization.The applications of these techniques include molecular markers which have been used to examine DNA variation within crop species. …
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Genetic linkage map of LCP 85-384, genetic diversity of a S. spontaneum collection and the contribution of S. spontaneum to Louisiana commerical germplasm
… (SRAP) marker technique was used to assess genetic relationships and diversity among genotypes of Saccharum and allied genera. In the SRAP technique, the primers were arbitrarily designed with an AT- and GC-rich motif to anneal introns and exons, respectively. The level of polymorphism …
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Towards an Understanding of Genetic Control of Processing Quality Traits in Blackcurrant (<i>Ribes nigrum</i> L.)
… with no reference genome.<br/><br/>In parallel, mapping population analysis and a new high-density quality-specific genetic linkage map and quantitative trait loci association with major quality compounds such as anthocyanins, sugars, organic acids and other polyphenols were developed. This …
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Identification of a mutation affecting plasmid establishment in Escherichia coli K-12
… coli K-12 strain JF55 has been located on the genetic linkage map. This mutation maps at approximately min 48 and is contransducible with purF. A new use of the process of zygotic induction has been explored to indirectly test the ability of an Est⁻ strain to support the first stage in plasmid …
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Flavour quality factors and its regulation in red raspberry (rubus idaeus)
Breeding in red raspberries is hampered by genetic incompatibility between varieties and a long juvenility period. Molecular breeding efforts in red raspberry have provided viable applications to incorporate disease resistance in new varieties. This approach could also be applied in developing …
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Isolation of innate immune response genes, expression analysis, polymorphism identification and development of genetic markers for linkage analysis in common carp (Cyprinus carpio)
… caused by cyprinid herpesvirus-3 (CyHV-3). Genetic variation in resistance to CyHV-3 infection was observed in different common carp strains, indicating that disease resistance can be improved by selective breeding. Marker-assisted selection is a breeding strategy that can accelerate genetic …
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Linkage mapping and genetic analysis of Trypanosoma brucei
… of T.brucei is now available and the diploid genetic system has recently been demonstrated to be Mendelian. This opens up the possibility of using a classical genetic approach to identify genetic loci that determine important phenotypic traits in this parasite, such as host specificity, drug …
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Genetic analysis of agronomic and enological traits in grapevine
… for their use as potential varietal markers. A genetic linkage map was constructed using Joinmap 3.0 software, following a pseudo-testcross strategy. Altogether271 simple sequence repeat (SSR) and 18071 SNP (Single Nucleotide Polymorphism) markers, and one CAPS marker were screened. Finally, a …
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Approach to the identification of sex-determining genes in the tilapia genome by genetic mapping and comparative positional cloning
… understood because of the variation in the genetic basis of sex-determination and the lack of morphological differences between sex chromosomes.</p><p>To facilitate QTL analysis of these traits, a genetic linkage map was constructed from hybrids between Oreochromis aureus and O. niloticus …
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A Genetic Approach towards Modulating Pre-Harvest Pod Shatter in Brassica napus (Oilseed Rape)
… Lines from a doubled haploid B. napus mapping population, segregating for Pod Shatter Resistance (PSR), termed POSH 1-3 exhibited a range of shatter resistance phenotypes. A Random Impact Test (RIT) was used to measure the difference between levels of PSR in population lines. An …
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Genetic basis of adaptive radiation in East African cichlids
… The goal of this dissertation was to examine the genetic basis of shape differences between two closely related cichlid species that employ alternate modes of feeding. This was achieved through a number of independent experiments. First, I used field data to characterize the way in which foraging …
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Physical and genetic mapping on mouse proximal chromosome 18
… that cover roughly 15% of the chromosome. The map was assembled based on the presence or absence of 38 DNA microsatellites, from proximal DI8Mit109 through distal D18Mit68. The physical order of those microsatellite STSs have been assigned. The locations of 21 known genes including markers near …
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Simple Sequence Repeat Development, Polymorphism and Genetic Mapping in Quinoa (Chenopodium quinoa Willd.)
… Andean region of South America. DNA markers and linkage maps are important tools for the improvement of underdeveloped crops such as quinoa. The objectives of this study were to (i) develop a new set of SSR markers to augment the number of SSR markers available in quinoa, and (ii) construct a new …
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Evaluation of physiological traits and identification of QTLs for drought tolerance in hexaploid wheat (Triticum aestivum L.).
… drought responses under controlled conditions; a genetic study to construct the skeleton map of a doubled haploid (DH) population; and a quantitative trait loci (QTL) analysis to identify QTLs associated with drought tolerance traits in the field. In the first part (Chapter 3), three cultivars of …
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Capturing Photosynthetic Traits from the Progenitors of Wheat
… associated with the constriction of available genetic diversity in the modern wheat gene pool and difficulties in improving photosynthesis during the growing season. Using a range of phenotyping techniques including portable infrared gas analysers, a collection of field grown progenitor wheat …
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Characterization of T-DNA integration sites within a population of insertional mutants of the diploid strawberry Fragaria vesca L.
… Rosaceae family and the high ploidy level makes genetic and molecular studies difficult. However, its commercial success because of its unique flavor and nutritious qualities has increased interest in the development of genomic resources. Fragaria vesca L. is a diploid (2n=2x=14) species with a …
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A Comprehensive Analysis of Rust Disease Resistance in the Bioenergy Plant Switchgrass (Panicum virgatum L.)
… biology approaches were employed to dissect the genetic mechanisms underlying switchgrass rust disease resistance. Novel pseudo-F2 mapping populations were created from a cross derived from 'Alamo' and 'Dacotah'. RNA-sequencing of the pseudo-F2 progenies of 'Alamo' x 'Dacotah' was used to …
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Speciation Genomics in Australian Meliphagoid Birds
… this new system. I characterized variation in genetic and morphological divergence across 27 meliphagoid species through three transition zones that comprise the system. Among factors that may predict genetic divergence, I found that taxonomic ranking outperforms morphological divergence and …
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Speciation Genomics in Australian Meliphagoid Birds
… this new system. I characterized variation in genetic and morphological divergence across 27 meliphagoid species through three transition zones that comprise the system. Among factors that may predict genetic divergence, I found that taxonomic ranking outperforms morphological divergence and …
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