Low-temperature stress is an important factor controlling the growth and development of rice (
Citations
objective
of this research was to determine the linkage or independent assortment between
Citations
Grape (
Citations
Rice hulls remain closed throughout the ripening period to maintain internal humidity of the grains. An Open-hull sterile mutant was induced by N-methyl-N-nitrosourea (MNU) treatment on Sinsunchalbyeo rice, a
Citations
The latest report on the draft genome of
Citations
In this study, we isolated cDNA with open reading frame encoding putative methyl-binding domain proteins from red pepper, which was designated as
Citations
Brown rice contains beneficial phytonutrients such as antioxidants, anthocyanins and oryzanol, and oryzanol is one of the major components. However, the information of oryzanol contents and genetic data are limited in Korean rice landraces to use the genetic resources. This study was conducted to investigate varietal differences of the oryzanol content and analyze the genetic diversity using SSR marker about 196 Korean rice landraces. Among tested germplasm, the total γ-oryzanol values showed the high variation ranged from 9.8 to 55.9 mg 100g−1 and an average content value was 27.2 mg 100g−1. Particularly, IT007903, IT007714, IT006622 and IT006125 accessions were showed γ-oryzanol contents higher than 50mg 100g−1. The 24-methylene cycloartenyl ferulate was the most prevalent with an average value of 29.9% among the total γ-oryzanol components, and followed by cycloartenyl ferulate (26.7%). Genetic diversity among 196 landrace accessions was evaluated based on 46 SSR markers carrying total 396 alleles. The mean values of observed (HO) and expected heterozygosities (HE) were 0.009 and 0.497, respectively, indicating a considerable amount of polymorphism within this collection. A genetic distance-based phylogeny grouped into seven clusters with genetic distance (GD) value was 0.6. According to the phylogenetic analysis, roughly 7 clusters were divergent, and the γ-oryzanol content values showed statistical differences by the four groups (
Citations
Salt stress is by far the leading environmental stress limiting crop yields worldwide. Genetic engineering techniques hold great promise for developing crop cultivars with high tolerance to salt stress. In this study, the
Citations
Soft rot disease caused by
Citations
Rapeseeds have many health benefits because its oil is rich in polyunsaturated and monounsaturated fatty acids, tocopherols and phytosterols. The
objective
of this research was to examine a possible genetic variation of oil, fatty acids, tocopherols and phytosterols in eight rapeseed varieties and the effect of locations on expression of those chemical compounds. In this study, effects of variety x location interaction for palmitic, stearic, oleic, linoleic, linolenic, eicogenic and erucic contents were found to be significant while that of oil content was not. For oil content, variation between the two locations was much higher than all other factors. Variation among varieties was the major source of variation in most fatty acids. Variation between two locations was much less for tocopherols and phytosterols than that for oil and fatty acids. Instead, variation in residual effect was much higher in tocopherols and phytosterols demanding more number of replication to achieve same level of statistical precision as oil and fatty acids. Correlation analyses confirmed that some of the chemical compounds can be a target for indirect selection.
Citations
First
Prev
