Publications by authors named "Orn Chhourn"
Article Synopsis
- Over 162 local rice varieties from Indochinese countries were analyzed for seven grain-size traits, revealing significant variation among them.
- Researchers conducted a survey of mutations related to these traits, utilizing 19 genetic markers to identify functional mutations affecting 14 grain-size loci.
- The study highlights the importance of these local rice varieties as genetic resources for future breeding efforts due to their wide genetic diversity.
Asian rice ( L.) is consumed by more than half of the world's population. Despite its global importance, the process of early rice domestication remains unclear.
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- Genetic variations in 179 rice accessions from Cambodia were analyzed based on heading dates, chromosome components, and resistance to blast disease.
- Dominant accessions showed early heading in the North East region, medium heading in Central, and late heading in the South East along the Mekong River, while greater variation was found around Tonle Sap Lake.
- Accessions were classified into Japonica and Indica groups, with distinct resistance levels observed in different regions, and significant differences noted between those along the Mekong River and those near Tonle Sap Lake.
Zinc (Zn) is one of the essential mineral elements for both plants and humans. Zn deficiency in human is one of the major causes of hidden hunger, a serious health problem observed in many developing countries. Therefore, increasing Zn concentration in edible part is an important issue for improving human Zn nutrition.
View Article and Find Full Text PDFA total of 448 samples in five natural populations of wild rice (Oryza rufipogon) were collected in Cambodia. They were examined using 12 SSR and two chloroplast markers to evaluate the degree of variation among populations and the genetic structure within populations. In the two annual populations, the number of plants with homozygous alleles at all 12 SSR loci were high (66.
View Article and Find Full Text PDFAsian cultivated rice Oryza sativa L. was domesticated from its wild ancestor, O. rufipogon.
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