@article{fdi:010065302,
  title = {{P}henotypic and genetic dissection of component traits for early vigour in rice using plant growth modelling, sugar content analyses and association mapping},
  author = {{R}ebolledo, {M}. {C}. and {D}ingkuhn, {M}. and {C}ourtois, {B}. and {G}ibon, {Y}. and {C}lement-{V}idal, {A}. and {C}ruz, {D}. {F}. and {D}uitama, {J}. and {L}orieux, {M}athias and {L}uquet, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}lant-model-assisted phenotyping and metabolomics enable phenotypic and genetic dissection of early vigour traits in a rice diversity panel.{E}arly vigour of rice, defined as seedling capacity to accumulate shoot dry weight ({SDW}) rapidly, is a complex trait. {I}t depends on a genotype propensity to assimilate, store, and/or use non-structural carbohydrates ({NSC}) for producing large and/or numerous leaves, involving physiological trade-offs in the expression of component traits and, possibly, physiological and genetic linkages. {T}his study explores a plant-model-assisted phenotyping approach to dissect the genetic architecture of rice early vigour, applying the {G}enome {W}ide {A}ssociation {S}tudy ({GWAS}) to morphological and {NSC} measurements, as well as fitted parameters for the functional-structural plant model, {E}comeristem. {L}eaf size, number, {SDW}, and source-leaf {NSC} concentration were measured on a panel of 123 japonica accessions. {T}he data were used to estimate {E}comeristem genotypic parameters driving organ appearance rate, size, and carbon dynamics. {GWAS} was performed based on 12 221 single-nucleotide polymorphisms ({SNP}). {T}wenty-three associations were detected at <italic toggle="yes">{P} < 1x10(-4) and 64 at <italic toggle="yes">{P} < 5x10(-4). {A}ssociations for {NSC} and model parameters revealed new regions related to early vigour that had greater significance than morphological traits, providing additional information on the genetic control of early vigour. {P}lant model parameters were used to characterize physiological and genetic trade-offs among component traits. {T}welve associations were related to loci for cloned genes, with nine related to organogenesis, plant height, cell size or cell number. {T}he potential use of these associations as markers for breeding is discussed.},
  keywords = {{G}enome wide association study ({GWAS}) ; genotyping by sequencing ; heuristic approach ; model-assisted phenotyping ; {O}ryza sativa {L}. ; sugar ; metabolism},
  booktitle = {},
  journal = {{J}ournal of {E}xperimental {B}otany},
  volume = {66},
  numero = {18},
  pages = {5555--5566},
  ISSN = {0022-0957},
  year = {2015},
  DOI = {10.1093/jxb/erv258},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065302},
}