A5070631054- Plant Reproductive Biology
- Plant and fungal interactions
- Turfgrass Adaptation and Management
- Wheat and Barley Genetics and Pathology
- Plant pathogens and resistance mechanisms
- Plant and animal studies
- Plant Molecular Biology Research
- Ruminant Nutrition and Digestive Physiology
- Plant Parasitism and Resistance
- Genetic Mapping and Diversity in Plants and Animals
- Bioenergy crop production and management
- Botany and Plant Ecology Studies
- Plant Taxonomy and Phylogenetics
- Agricultural Productivity and Crop Improvement
- Yeasts and Rust Fungi Studies
- Plant Pathogens and Fungal Diseases
- Genetics and Plant Breeding
- Genetic and phenotypic traits in livestock
- Legume Nitrogen Fixing Symbiosis
- Tree Root and Stability Studies
- Weed Control and Herbicide Applications
- Botanical Research and Chemistry
- Nematode management and characterization studies
- Insect and Arachnid Ecology and Behavior
- Crop Yield and Soil Fertility
Aberystwyth University
2011-2022
Institute of Biological, Environmental and Rural Sciences
2010-2022
Aarhus University
2010
The grass family (Poaceae), the fourth largest of flowering plants, encompasses most economically important cereal, forage, and energy crops, exhibits a unique gametophytic self-incompatibility (SI) mechanism that is controlled by at least two multiallelic independent loci, S Z. Despite intense research efforts over last six decades, genes underlying Z remain uncharacterized. Here, we report fine-mapping approach to identify male component S-locus in perennial ryegrass (Lolium perenne L.)...
Perennial ryegrass (Lolium perenne L.) is one of the most widely grown forage grasses in temperate agriculture. In order to maintain and increase its usage as livestock agriculture, there a continued need for improvement biomass yield, quality, disease resistance seed yield. Genetic gain traits such yield has been relatively modest. This attributed long breeding cycle, necessity use population based methods. Thanks recent advances genotyping techniques increasing interest genomic selection...
Abstract We describe a candidate gene approach for associating SNPs with variation in flowering time and water-soluble carbohydrate (WSC) content other quality traits the temperate forage grass species Lolium perenne. Three analysis methods were used, which took significant population structure into account. First, linear mixed model was used enabling structured association to be incorporated nine populations identified as random variables. Second, within-population of variance performed....
The Arabidopsis (Arabidopsis thaliana) FLOWERING LOCUS T (FT) gene and its orthologs in other plant species (e.g. rice [Oryza sativa] OsFTL2/Hd3a) have an established role the photoperiodic induction of flowering response. genomic phenotypic variations associated with perennial ryegrass (Lolium perenne) ortholog FT, designated LpFT3, was assessed a diverse collection nine European germplasm populations, which together constituted association panel 864 plants. Sequencing genotyping series...
• Mutational load and resource allocation factors their effects on limiting seed set were investigated in ryegrass by comparative mapping genomics quantitative trait loci (QTL) analysis two perennial (Lolium perenne) families sharing common genetic markers. Quantitative for seed-set identified chromosome (LG) 7 both LG4 of the F2/WSC family. On LG7, heading date QTLs colocalized cannot be unequivocally resolved. Comparative suggests that LG7 region is syntenous to a rice LG6 which contains...
Self-incompatibility (SI) is a mechanism that many flowering plants employ to prevent fertilisation by self- and self-like pollen ensuring heterozygosity hybrid vigour. Although number of single locus mechanisms have been characterised in detail, no multi-locus systems fully elucidated. Historically, examples the genetic analysis SI, make tractable, are either made on progeny bi-parental crosses, where alleles at each restricted, or crosses prepared such way only one SI loci segregates....
Perennial ryegrass (Lolium perenne) is one of the key forage and amenity grasses throughout world. In UK it accounts for 70 % all agricultural land use with an estimated farm gate value 6 billion pounds per annum. However, in terms genetic resources available, L. perenne has lagged behind other major crops Poaceae. The aim this project was therefore construction a microsatellite-enriched genomic library to increase number markers available both marker-assisted selection breeding programmes...
Abstract Perennial ryegrass ( Lolium perenne ) is the most widely grown temperate grass species globally. Intensive plant breeding in compared to many other crops a relatively recent exercise (last 100 years) and provides an interesting experimental system trace extent, impact trajectory of undomesticated ecotypic variation represented modern cultivars. To explore germplasm dynamics , 2199 SNPs were genotyped 716 ecotypes sampled from 90 European locations together with 249 cultivars...
Accurate identification of named accessions in germplasm collections is extremely important, especially for vegetatively propagated crops which are expensive to maintain. Thus, an inexpensive, reliable, and rapid genotyping method essential because it avoids the need laborious time-consuming morphological comparisons. Single Nucleotide Polymorphism (SNP) marker panels containing large numbers SNPs have been developed many crop species, but such much too basic cultivar identification. Here,...
Abstract Differences were found in the expression of resistance perennial ryegrass, Lolium perenne , cultivars to crown rust, Puccinia coronata Corda, when plants incubated at either 10°C or 25°C. In an extreme example, all genotypes ‘Carrick’ resistant but susceptible The variation between was due both a general increase susceptibility and proportion which became susceptible. A BC 1 line containing stay‐green gene derived from Festuca pratensis insensitive temperature, while sister sensitive.
Self-incompatibility (SI) is a physiological mechanism that many flowering plants employ to prevent self-fertilization and maintain heterozygosity. In the grass family this known be controlled by two locus (S-Z) system; however, SI system intrinsically leaky. Modifier genes of both S Z loci further locus, T, are override leading self-seed production. This has implications for ecological evolutionary success as well commercial breeding grasses. Here we report study where genetic control...
Self-incompatibility (SI) is a genetic mechanism of hermaphroditic plants to prevent inbreeding after self-pollination. Allogamous Poaceae species exhibit unique gametophytic SI system controlled by two multi-allelic and independent loci, S Z. Despite intense research efforts in the last decades, genes that determine initial recognition are yet be identified. Here, we report fine-mapping Z-locus perennial ryegrass (Lolium perenne L.) provide evidence pollen stigma components determined...