A diverse set of Oryza sativa accessions was identified as part of a study to explore transgressive variation in rice. Genetically homogeneous rice accessions are required for association studies, thus 389 O. sativa accessions selected from 77 countries were purified by identifying a ...

Arabidopsis lyrata in Arabidopsis thaliana (already demonstrated to be feasible [107]) and taking advantage in different Arabi- dopsis accessions has revealed variation in methylation at single-copy and repetitive loci

The Avena sterilis collection in the Plant Gene Resources of Canada (PGRC) consists of 11,235 accessions originating from 27 countries and is an invaluable source of genetic variation for genetic improvement of oats, but has been inadequately characterized, particularly using molecular techniques. ...

Knowledge of the molecular genetic variation of the accessions of core collections will be important for their efficient use in breeding programs, and for conservation purposes. The present study was undertaken for genotyping the part of the USDA chickpea core collection (Hannan et al 1994) with 20 ...

Genetic Diversity Individual Variation Genetic Inheritance Population Variation Evolution of Populations Speciation Individual Variation Sources of Individual Variation In...

The extent of and accessibility to genetic variation in a large germplasm collection are of interest to biologists and breeders. Construction of core collections (CC) is a favored approach to efficient exploration and conservation of novel variation in genetic resources. Using 4,310 Chinese ...

Alfalfa (Medicago sativa L.) is one of the most important cultivated forage legumes worldwide. Understanding the areas of adaptation and genetic variation available in a crop species facilitates efforts to identify suitable germplasm for integration in plant breeding programs. Accessions that repr...

Sustainable agriculture strives for healthy, high yielding plants with minimal agronomic inputs. Genetic solutions to increase nutrient uptake are desirable because they provide ongoing improvements. To achieve this it is necessary to identify genes involved in uptake and translocation of nutrients....

Using the well-developed microbial system, Clostridium phytofermentans, we developed an assay that provides the ability to measure the impact of pretreatment, conversion processes, and microbial and plant genetic diversity of digestibility, and thereby determine the potential effects of numerous var...

Maize is one of the world¿s most diverse species, and this variation can be used to understand the molecular basis of phenotypic variation and to improve agricultural efficiency and sustainability. To access this genetic variation, 25 diverse inbred maize lines were crossed to the B73 ...

Cultivated tomato (Solanum lycopersicum L.) is known to have a narrow genetic base. COSII, EST-based, and several loci related to fruit quality traits were resequenced in a diverse panel of 30 Plant Genetic Resources Unit (PGRU) tomato accessions, line TA496, and Solanum peruvianum accession G 32591...

Twenty seven accessions of sorghum conserved in the national gene bank of Zambia, representing two of the three agroecological regions of the country, were investigated using simple sequence repeats (SSR) markers in order to determine the extent and distribution of its genetic diversity. We used 10 microsatellite primer-pairs, which generated 2-9 alleles ...

Mutation is the ultimate source of all genetic variation, and genetic variation is absolutely should make the study of mutation the foundation of evolutionary genetics. Unfortunately, this is very of deleterious mutations. Genetic information is encoded in nucleic acids; ...