Introduction: Fragrance is an important economic and quality trait in rice. The trait is controlled by the recessive gene betaine aldehyde dehydrogenase 2 (BADH2) via the production of 2-acetyl-1-pyrroline (2AP).
Objectives: Variation in BADH2 was evaluated at the population, genetic, transcriptional, and metabolic levels to obtain insights into fragrance regulation in rice.
Betaine aldehyde dehydrogenase 1 (, a paralog of the fragrance gene , is known to be associated with salt stress through the accumulation of synthesized glycine betaine (GB), which is involved in the response to abiotic stresses. Despite the unclear association between and salt stress, we observed the responses of eight phenotypic characteristics (germination percentage (GP), germination energy (GE), germination index (GI), mean germination time (MGT), germination rate (GR), shoot length (SL), root length (RL), and total dry weight (TDW)) to salt stress during the germination stage of 475 rice accessions to investigate their association with haplotypes. We found a total of 116 SNPs and 77 InDels in the whole gene region, representing 39 haplotypes.
View Article and Find Full Text PDFSqualene is an isoprenoid compound that acts as the intermediate metabolite in cholesterol synthesis. Squalene is not very susceptible to peroxidation, and it quenches singlet oxygen in the skin, which is caused by UV exposure and other ionizing radiation sources. Squalene is a precursor to phytosterol synthesis, and it has been widely studied for its ability to reduce oxidation, cancer activity, and cholesterol levels.
View Article and Find Full Text PDFBackground: The domestication process of Asian rice (Oryza sativa L.) is complicated. It's well established that Oryza rufipogon is the ancestor of Asian rice, although the number of domestication events still controversial.
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