A5072876027- Plant and animal studies
- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Genetic Mapping and Diversity in Plants and Animals
- Plant Parasitism and Resistance
- Plant Gene Expression Analysis
- Ecology and Vegetation Dynamics Studies
- Plant Diversity and Evolution
- Plant biochemistry and biosynthesis
- Plant Reproductive Biology
- Plant responses to elevated CO2
- Genetic diversity and population structure
- Plant Molecular Biology Research
- Genetic and phenotypic traits in livestock
- Bioenergy crop production and management
- Mycotoxins in Agriculture and Food
- Plant Pathogens and Resistance
- Genomics and Phylogenetic Studies
- Plant nutrient uptake and metabolism
University of Cambridge
2014-2024
National Institute of Agricultural Botany
2018-2024
The flowers of major cereals are arranged on reproductive branches known as spikelets, which group together to form an inflorescence. Diversity for inflorescence architecture has been exploited during domestication increase crop yields, and genetic variation this trait potential further boost grain production. Multiple genes that regulate have identified by studying alleles modify gene activity or dosage; however, little is in wheat. Here, we show TEOSINTE BRANCHED1 (TB1) regulates bread...
Disentangling species boundaries and phylogenetic relationships within recent evolutionary radiations is a challenge due to the poor morphological differentiation low genetic divergence between species, frequently accompanied by phenotypic convergence, interspecific gene flow incomplete lineage sorting. Here we employed genotyping-by-sequencing (GBS) approach, in combination with morphometric analyses, investigate small western Mediterranean clade flowering plant genus Linaria that radiated...
Parastagonospora nodorum is a necrotrophic fungal pathogen of wheat (Triticum aestivum L.), one the world's most important crops. P. mediates host cell death using proteinaceous effectors, presumably liberating nutrients that allow infection process to continue. The identification effectors has allowed genetic resistance mechanisms be separated into their constituent parts. In nodorum, three have been cloned: SnToxA, SnTox1 and SnTox3. Here, we survey sensitivity all in panel 480 European...
Gorteria diffusa has elaborate petal spots that attract pollinators through sexual deception, but how G. controls spot development is largely unknown. Here, we investigate pigmentation regulated during formation. We determined the anthocyanin composition of petals and combined gene expression analysis with protein interaction assays to characterise R2R3-MYBs likely regulate pigment production in spots. found cyanidin 3-glucoside pigments ray floret petals. Unlike other regions, contain a...
Recent research has shown that optimizing photosynthetic and stomatal traits holds promise for improved crop performance. However, standard phenotyping tools such as gas exchange systems have limited throughput. In this work, a novel approach based on bespoke chamber allowing combined measurement of the quantum yield PSII (Fq'/Fm'), with an estimation conductance via thermal imaging was used to phenotype range bread wheat (Triticum aestivum L.) genotypes. Using dual-imaging methods...
Evolutionary developmental biology has come to prominence in the past two decades, both plant kingdom and animal kingdom, particularly following description of homeotic genes linked key morphological transitions. A primary goal evolutionary ("evo-devo") is define how programs are modified generate novel or labile morphologies. This requires an understanding molecular genetic basis these changes they have undergone. The decade seen establishment a common language standards, greatly improved...
Phenotypic integration, the coordinated covariance of suites morphological traits, is critical for proper functioning organisms. Angiosperm flowers are complex structures comprising traits that function together to achieve effective pollen transfer. Floral integration could reflect shared genetic and developmental control these or arise through pollinator-imposed stabilizing correlational selection on traits. We sought expose mechanisms underlying floral trait in sexually deceptive daisy,...
The wheat flag leaf is the main contributor of photosynthetic assimilates to developing grains. Understanding how canopy architecture strategies affect source strength and yield will aid improved crop design. We used an eight-founder population investigate genetic area, length, width angle in European wheat. For strongest locus identified, we subsequently created a near-isogenic line (NIL) pair for more detailed investigation across seven test environments. Genetic control traits...
Bread wheat (Triticum aestivum L.) is one of the world's most important crops. Maintaining yield gains across all its major production areas a key target toward underpinning global food security. Brazil producer in South America, generating grain yields around 6.8 million tons per year. Here, we establish and genotype association mapping resource relevant to contemporary Brazilian breeding programs. The panel 558 accessions was genotyped using an Illumina iSelect 90,000 single nucleotide...
A barrier to the adoption of genomic prediction in small breeding programs is initial cost genotyping material. Although decreasing, marker costs are usually higher than field trial costs. In this study we demonstrate utility stratifying a narrow-base biparental oat population genotyped with modest number markers employ at early and later generations. We also show that generation data can reduce lines for phenotyping based on selections siblings progress. Using sets families selected an...
Summary Gorteria diffusa has elaborate petal spots that attract male bee-fly pollinators through sexual deception but the genetic basis of G. spot development is currently unknown. Here we investigate regulation pigmentation during formation. We used UHPLC-MS/MS to determine anthocyanin composition and background in . Combining gene expression analysis with protein interaction assays characterised three R2R3-MYB genes regulating production spots. found cyanidin 3-glucoside pigments ray...
Abstract The morphologically diverse daisy species Gorteria diffusa employs varying levels of sexually deceptive pollination. comprises at least fifteen spatially and phenotypically discrete floral morphotypes that are associated with a range pollination strategies, from generalism to highly specialised sexual deception involving visual mimicry females the bee-fly Megapalpus capensis . However, pattern evolution unique traits in this lineage remains unknown because phylogenetic history...