@article{fdi:010077007, title = {{G}enome-wide association mapping of leaf mass traits in a {V}ietnamese rice landrace panel}, author = {{H}oang, {G}. {T}. and {G}antet, {P}ascal and {N}guyen, {K}. {H}. and {P}hung, {N}. {T}. {P}. and {H}a, {L}. {T}. and {N}guyen, {T}. {T}. and {L}ebrun, {M}ichel and {C}ourtois, {B}. and {P}ham, {X}. {H}.}, editor = {}, language = {{ENG}}, abstract = {{L}eaf traits are often strongly correlated with yield, which poses a major challenge in rice breeding. {I}n the present study, using a panel of {V}ietnamese rice landraces genotyped with 21,623 single-nucleotide polymorphism markers, a genome-wide association study ({GWAS}) was conducted for several leaf traits during the vegetative stage. {V}ietnamese land races are often poorly represented in panels used for {GWAS}, even though they are adapted to contrasting agrosystems and can contain original, valuable genetic determinants. {A} panel of 180 rice varieties was grown in pots for four weeks with three replicates under nethouse conditions. {D}ifferent leaf traits were measured on the second fully expanded leaf of the main tiller, which often plays a major role in determining the photosynthetic capacity of the plant. {T}he leaf fresh weight, turgid weight and dry weight were measured; then, from these measurements, the relative tissue weight and leaf dry matter percentage were computed. {T}he leaf dry matter percentage can be considered a proxy for the photosynthetic efficiency per unit leaf area, which contributes to yield. {B}y a {GWAS}, thirteen {QTL}s associated with these leaf traits were identified. {E}leven {QTL}s were identified for fresh weight, eleven for turgid weight, one for dry weight, one for relative tissue weight and one for leaf dry matter percentage. {E}leven {QTL}s presented associations with several traits, suggesting that these traits share common genetic determinants, while one {QTL} was specific to leaf dry matter percentage and one {QTL} was specific to relative tissue weight. {I}nterestingly, some of these {QTL}s colocalize with leaf- or yield-related {QTL}s previously identified using other material. {S}everal genes within these {QTL}s with a known function in leaf development or physiology are reviewed.}, keywords = {{VIET} {NAM}}, booktitle = {}, journal = {{P}los {O}ne}, volume = {14}, numero = {7}, pages = {e0219274 [18 p.]}, ISSN = {1932-6203}, year = {2019}, DOI = {10.1371/journal.pone.0219274}, URL = {https://www.documentation.ird.fr/hor/fdi:010077007}, }