@article{fdi:010075158,
  title = {{G}enome-wide association study of a panel of vietnamese rice landraces reveals new {QTL}s for tolerance to water deficit during the vegetative phase},
  author = {{H}oang, {G}. {T}. and {D}inh, {L}. {V}. and {N}guyen, {T}. {T}. and {T}a, {N}. {K}. and {G}athignol, {F}loran and {M}ai, {C}. {D}. and {J}ouannic, {S}tefan and {T}ran, {K}. {D}. and {K}huat, {T}. {H}. and {D}o, {V}. {N}. and {L}ebrun, {M}ichel and {C}ourtois, {B}. and {G}antet, {P}ascal},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground{D}rought tolerance is a major challenge in breeding rice for unfavorable environments. {I}n this study, we used a panel of 180 {V}ietnamese rice landraces genotyped with 21,623 single-nucleotide polymorphism markers to perform a genome-wide association study ({GWAS}) for different drought response and recovery traits during the vegetative stage. {T}hese landraces originate from different geographical locations and are adapted to different agrosystems characterized by contrasted water regimes. {V}ietnamese landraces are often underrepresented in international panels used for {GWAS}, but they can contain original genetic determinants related to drought resistance.{R}esults{T}he panel of 180 rice varieties was phenotyped under greenhouse conditions for several drought-related traits in an experimental design with 3 replicates. {P}lants were grown in pots for 4 weeks and drought-stressed by stopping irrigation for an additional 4 weeks. {D}rought sensitivity scores and leaf relative water content were measured throughout the drought stress. {T}he recovery capacity was measured 2 weeks after plant rewatering. {S}everal {QTL}s associated with these drought tolerance traits were identified by {GWAS} using a mixed model with control of structure and kinship. {T}he number of detected {QTL}s consisted of 14 for leaf relative water content, 9 for slope of relative water content, 12 for drought sensitivity score, 3 for recovery ability and 1 for relative crop growth rate. {T}his set of 39 {QTL}s actually corresponded to a total of 17 different {QTL}s because 9 were simultaneously associated with two or more traits, which indicates that these common loci may have pleiotropic effects on drought-related traits. {N}o {QTL} was found in association with the same traits in both the indica and japonica subpanels. {T}he possible candidate genes underlying the quantitative trait loci are reviewed.{C}onclusions{S}ome of the identified {QTL}s contain promising candidate genes with a function related to drought tolerance by osmotic stress adjustment.},
  keywords = {{A}ssociation mapping ; {D}rought tolerance ; {G}enotyping by sequencing ; {Q}uantitative trait loci ; {R}ice ; {V}ietnamese landraces ; {VIET} {NAM}},
  booktitle = {},
  journal = {{R}ice},
  volume = {12},
  numero = {},
  pages = {art. 4 [20 p.]},
  ISSN = {1939-8425},
  year = {2019},
  DOI = {10.1186/s12284-018-0258-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075158},
}