Open Access. Powered by Scholars. Published by Universities.®
- Keyword
- Publication
Articles 1 - 4 of 4
Full-Text Articles in Life Sciences
Genetic, Agronomic And Compositional Characterization Of Brown Midrib Sweet Sorghum Lignocellulosic Biomass For Ethanol Production, Luis A. Rivera Burgos
Genetic, Agronomic And Compositional Characterization Of Brown Midrib Sweet Sorghum Lignocellulosic Biomass For Ethanol Production, Luis A. Rivera Burgos
Open Access Dissertations
Sorghum is a promising bioenergy crop due to its unique phenotypic and genotypic attributes. Quality (low lignin and high stem sugar concentration) and quantity (biomass yield, plant height, plant maturity, etc.) biomass traits are key contributors to ethanol yield and production. In this study, a 236 sorghum recombinant inbred line (RIL) population was subjected to genetic, agronomic and compositional characterization for ethanol yield and production. We found that the sweet mutation enhances biomass quantity traits in the RILs which translates to higher ethanol production and biomass quality which improves ethanol yield. The variance components showed from moderate to high heritability …
Genetic Analysis Of Tocochromanol Variation In Maize Using High-Density Linkage Mapping, Megan E. Fenton
Genetic Analysis Of Tocochromanol Variation In Maize Using High-Density Linkage Mapping, Megan E. Fenton
Open Access Theses
Vitamin E is an essential nutrient in the human diet and refers to eight distinct compounds that are collectively known as tocochromanols. Tocochromanols are grouped into two classes: tocotrienols and tocopherols. Tocochromanols are the major lipid-soluble antioxidants in maize (Zea mays L.) grain. Enhancing the tocochromanol content of maize derived foods through plant breeding has important nutritional and health implications. Chapter one is a literature review that provides a foundational understanding of the biosynthesis, function and genetic control of tocochromanols in plants, with specific attention to maize (Zea mays L.). Upon this foundation two research objectives were developed that work …
Utilization Of Tall Wheatgrass Translocation Lines To Improve Fusarium Head Blight Resistance In Wheat, Xiangye Xiao
Utilization Of Tall Wheatgrass Translocation Lines To Improve Fusarium Head Blight Resistance In Wheat, Xiangye Xiao
Open Access Dissertations
Fusarium head blight (FHB) and leaf rust (LR) are two major fungal pathogens threatening the wheat crop, consequently identifying resistance genes from various sources is always of importance to wheat breeders. Type II FHB resistance in wheat has been improved by introgressing QTL from landraces and wild species. The present study was undertaken to (1) combine two different type II FHB resistance QTL in the backgrounds of six adapted wheat lines (2) improve the map resolution of Qfhs.pur-7EL.^ In the first objective, the FHB resistance gene Fhb1 originated in a Chinese wheat cultivar and is located on wheat chromosome …
Using Large Snp Datasets To Understand The Genetic Mechanisms Of Complex Traits In Arabidopsis Thaliana, Elisabeth S. Harrison
Using Large Snp Datasets To Understand The Genetic Mechanisms Of Complex Traits In Arabidopsis Thaliana, Elisabeth S. Harrison
Open Access Theses
Arabidopsis thaliana, as a model species, has been widely genotyped and sequenced. Many studies have been done to understand the kinship and population structure of the species. This data and information is beneficial for understanding the genetic mechanisms of complex traits. In this thesis, we first used genotyped data for 5,967 accessions to study the occurrence of tetraploidy in the species. We found that tetraploidy is a transient character state, and the species is a diploid species. Secondly, we used 211K and 1.6M SNPs for 440 accessions to run genome-wide analyses (GWA) for four traits: glufosinate tolerance, hybrid incompatibilities, seed …