Ruaraidh Sackville Hamilton

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We have identified about 20 million rice SNPs by aligning reads from the 3000 rice genomes project with the Nipponbare genome. The SNPs and allele information are organized into a SNP-Seek system (http://www.oryzasnp.org/iric-portal/), which consists of Oracle database having a total number of rows with SNP genotypes close to 60 billion (20 M SNPs × 3 K(More)
Using a novel approach combining four complementary metabolomic and mineral platforms with genome-wide genotyping at 1536 single nucleotide polymorphism (SNP) loci, we have investigated the extent of biochemical and genetic diversity in three commercially-relevant waxy rice cultivars important to food production in the Lao People’s Democratic Republic(More)
A novel QTL cluster for chalkiness on Chr04 was identified using single environment analysis and joint mapping across 9 environments in Asia and South American. QTL NILs showed that each had a significant effect on chalk. Chalk in rice grains leads to a significant loss in the proportion of marketable grains in a harvested crop, leading to a significant(More)
Humanity depends on fewer than a dozen of the approximately 300,000 species of flowering plants for 80% of its caloric intake. And we capitalize on only a fraction of the genetic diversity that resides within each of these species. This is not enough to support our food system in the future. Food availability must double in the next 25 years to keep pace(More)
Genets of Trifolium repens (white clover) were collected from three patches of old permanent pasture dominated by Agrostis capillaris, Holcus lanatus or Lolium perenne. Plants derived from the genets were grown with plants of one grass species present on one side of each T. repens, and a different grass species on the other side, in all combinations of two(More)
The International Rice Information System (IRIS, http://www.iris.irri.org) is the rice implementation of the International Crop Information System (ICIS, http://www.icis.cgiar.org), a database system for the management and integration of global information on genetic resources and germplasm improvement for any crop. Building upon the germplasm genealogy and(More)
A small urban catchment has been monitored for levels of Pb, Zn, Cd and Cu in the atmosphere, deposition, surface dust and stormwater runoff. The contribution of local emissions to total deposition is considered and found to be significant only for Zn. In rainfall, the metals are mainly particulate associated. Wet deposition is more important than dry(More)
The emission inventory for London indicates that nearly 80% of the particulate emissions derive from vehicular sources. Most of this mass is in the form of ultrafine submicrometer particles which are of concern because of their influence on lung function. The prediction of their dispersion in the atmosphere coupled to the physical and chemical(More)
A sample of 200 accessions was selected from IRRI’s rice (Oryza sativa) germplasm bank, that represents rice diversity in terms of genetic groups (aus, indica, tropical japonica, temperate japonica, and aromatic) and crop duration cycles of the accessions. The sample also captured the diversity of rice germplasm in terms of morphological traits. The(More)
In the UK, air quality information is made available through a range of media. However, limited attention has been paid to ensuring that the information is provided to the public in a format that is understandable and relevant to their needs. This research has begun the task of determining the nature and extent of public air quality requirements by(More)