@article{fdi:010092663,
  title = {{Q}uantitative trait loci for grain mineral element accumulation in {V}ietnamese rice landraces},
  author = {{T}ran, {H}. {L}. and {H}oang, {G}. {T}. and {P}hung, {N}. {T}. {P}. and {L}e, {H}. {H}. and {G}rondin, {A}lexandre and {G}antet, {P}ascal},
  editor = {},
  language = {{ENG}},
  abstract = {{R}ice ({O}ryza sativa {L}.) is a staple food for half of the world's population, and its biofortification is a key factor in fighting micronutrient malnutrition. {H}owever, harmful heavy metals tend to accumulate in rice grains due to soil and water contamination. {T}herefore, it is important to improve beneficial micronutrient contents and reduce the accumulation of undesirable metals in rice grain. {T}o better characterize the genetic control of mineral accumulation in rice, we conducted association genetics on the ion contents of white and brown grains using a collection of 184 {V}ietnamese rice landraces. {I}n total, 27 significant associations were identified and delimited into quantitative trait loci associated with macronutrients such as phosphorus, potassium or calcium; micronutrients such as iron or zinc; or toxic heavy metals such as arsenic and cadmium. {S}everal genes related to ion homeostasis or ion transport were identified in the different quantitative trait loci. {LOC}_{O}s10g30610, present in q{RA}s10-1 associated with arsenic content in brown rice, encodes an {ABC} transporter ({O}s{ABCG}25), which is involved in the silicon-induced formation of the {C}asparian strip in the rice exodermis and could act as a barrier restricting {A}s diffusion within the root cortex. {LOC}_{O}s05g04330, present in q{RP}5-1 and associated with phosphorus content in brown rice, encodes a {CHH} methylation maintenance protein, and its expression is downregulated in roots in the presence of the phosphorus uptake 1 ({P}up1), suggesting a role for epigenetics in the regulation of phosphorus uptake and accumulation in grain. {T}hese findings reveal novel quantitative trait loci associated with grain ion content and candidate genes that are potentially valuable for breeding programs aimed at rice grain biofortification and reducing toxic metal accumulation.},
  keywords = {{VIET} {NAM}},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {19},
  numero = {12},
  pages = {e0315666 [18 p.]},
  ISSN = {1932-6203},
  year = {2024},
  DOI = {10.1371/journal.pone.0315666},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092663},
}