A5055029420- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Plant Disease Resistance and Genetics
- Genetic Mapping and Diversity in Plants and Animals
- Mycotoxins in Agriculture and Food
- Plant Pathogens and Fungal Diseases
- Plant Pathogens and Resistance
- Genetic and Environmental Crop Studies
- Chromosomal and Genetic Variations
- African Botany and Ecology Studies
- Genetic diversity and population structure
- Genetic and phenotypic traits in livestock
- Plant tissue culture and regeneration
- Cocoa and Sweet Potato Agronomy
- Plant Virus Research Studies
- Cassava research and cyanide
- Agriculture, Plant Science, Crop Management
- Phytase and its Applications
- Rice Cultivation and Yield Improvement
- Genetically Modified Organisms Research
- Banana Cultivation and Research
- Food composition and properties
- Crop Yield and Soil Fertility
- Powdery Mildew Fungal Diseases
- Agronomic Practices and Intercropping Systems
Norwegian University of Life Sciences
2008-2021
The Research Council of Norway
1990-2008
The development and use of molecular markers for the detection exploitation DNA polymorphism is one most significant developments in field genetics. presence various types markers, differences their principles, methodologies, applications require careful consideration choosing or more such methods. No are available yet that fulfill all requirements needed by researchers. According to kind study be undertaken, can choose among variety techniques, each which combines at least some desirable...
A genetic linkage mapping study was conducted in 93 doubled-haploid lines derived from a cross between Triticum aestivum L. em. Thell 'Arina' and Norwegian spring wheat breeding line, NK93604, using diversity arrays technology (DArT), amplified fragment length polymorphism (AFLP), simple sequence repeat (SSR) markers. The objective of this to understand the distribution, redundancy, segregation distortion DArT markers comparison with AFLP SSR map contains total 624 189 DArTs, 165 AFLPs 270...
Genomic discovery in oat and its application to improvement have been hindered by a lack of genetic markers common different maps, the difficulty conducting whole-genome analysis using high-throughput markers. This study was intended develop, characterize, apply large set based on Diversity Array Technology (DArT).Approximately 19,000 genomic clones were isolated from complexity-reduced representations pooled DNA samples 60 varieties global origin. These screened three arrays, with more than...
Hexaploid oat ( Avena sativa L., 2 n = 6 x 42) is a member of the Poaceae family and has large genome (∼12.5 Gb) containing 21 chromosome pairs from three ancestral genomes. Physical rearrangements among parental genomes have hindered development linkage maps in this species. The objective work was to develop single high‐density consensus map that representative majority commonly grown varieties. Data cDNA‐derived single‐nucleotide polymorphism (SNP) array genotyping‐by‐sequencing (GBS) were...
Genetic mapping (also known as linkage or meiotic mapping) refers to the determination of relative position and distances between markers along chromosomes. map two are defined mean number recombination events, involving a given chromatid, in that region per meiosis. construction requires researcher develop appropriate population, decide sample size type molecular marker(s) for genotyping, genotype population with sufficient markers, perform analyses using statistical programs. The detailed...
With 6 figures and 3 tables Abstract Anther extrusion (AE) has been suggested as one of the resistance mechanisms to Fusarium head blight (FHB) in wheat, but not well investigated. The objectives this study were assess AE double haploid population ‘Arina’ × ’NK93604’, evaluate its relationship both with FHB deoxynivalenol (DON) accumulation, map quantitative trait loci (QTLs). was studied 2005−2007 DON content analysed data from culmorum inoculations 2001–2003 graminearum 2007. showed...
A physically anchored consensus map is foundational to modern genomics research; however, construction of such a in oat (Avena sativa L., 2n = 6x 42) has been hindered by the size and complexity genome, scarcity robust molecular markers, lack aneuploid stocks. Resources developed this study include modified SNP discovery method for complex genomes, diverse set novel chromosome-deficient anchoring strategy. These resources were applied build first complete, physically-anchored hexaploid oat....
Fusarium head blight (FHB) resistant line Soru#1 was hybridized with the German cultivar Naxos to generate 131 recombinant inbred lines for QTL mapping. The population phenotyped FHB and associated traits in spray inoculated experiments El Batán (Mexico), spawn Ås (Norway) point Nanjing (China), two field trials at each location. Genotyping performed Illumina iSelect 90K SNP wheat chip, along a few SSR STS markers. A major after inoculation detected on 2DLc, explaining 15-22% of phenotypic...
Six hundred thirty five oat ( Avena sativa L.) lines and 4561 single‐nucleotide polymorphism (SNP) loci were used to evaluate population structure, linkage disequilibrium (LD), genotype–phenotype association with heading date. The first principal components (PCs) accounted for 25.3% of genetic variation. Neither the eigenvalues 25 PCs nor cross‐validation errors from K = 1 20 model‐based analyses suggested a structured population. However, PC 2 supported clustering on spring vs. southern...
ABSTRACT Breeding for Fusarium head blight (FHB) resistant wheat adapted to the Norwegian climatic conditions is one of top priorities in country. This study was conducted characterize QTLs FHB resistance and low deoxynivalenol (DON) content a population 93 double haploid lines from cross between ‘Arina’ NK93604. Both parents have moderate levels FHB. The assessed under field 3 yr (2001 2003), DON analyzed seed samples 2002 experiment. two traits showed significant genetic variation were...
We provide a comprehensive SAS program for the computation of univariate and multivariate stability statistics balanced data. The is intended genotype × location year (G L Y) or L) data, averaged over replications (R). It computes symmetrical joint linear regression with right left solutions Tukey's 1 df nonadditivity, coefficients ( b ‐ β‐values), deviations from (δ ij ) provides graphs lines both genotypes locations. Separate on positive negative sectors environmental indices also...
For maintaining food security and livelihood, farmers in marginal areas of production environments make use high levels crop genetic diversity. The exchange seed varieties among villagers, also the relative isolation local their environments, contributes to continued existence locally adapted genotypes. In Tigray, one major barley-growing regions Ethiopia, systems are dominant. annual barley requirement is met with produced, saved exchanged by farmers. order understand flows within between...
ABSTRACT Near-isogenic lines (NILs) with resistance for scald in seventh generation backcross 'Ingrid' as recurrent parent (RP) were tested seven differential isolates of Rhynchosporium secalis Norway and Canada. NILs 'Turk', 'Brier', 'CI 8162', 'La Mesita', 'Hispont', 'Atlas 46', 'Modoc', 'Hudson', 'Abyssinian', 'Steudelli', 2222' also evaluated field reactions. The genetic characterization the (degree isogeneity Ingrid) each other was carried out. molecular marker pattern shows that...
ABSTRACT Fusarium head blight (FHB) is a destructive wheat ( Triticum aestivum L.) disease of global importance. The widely used dwarfing allele Rht‐D1b has recently been shown to compromise FHB resistance. objectives this study were investigate the impact in segregating population with major resistance quantitative trait loci (QTL) derived from ‘Sumai‐3’ and Nobeokabozu, determine how many QTL are needed counteract its negative effect. was evaluated four field trials spray inoculation two...