@article{fdi:010074126,
  title = {{QTL} detection for growth and latex production in a full-sib rubber tree population cultivated under suboptimal climate conditions},
  author = {{R}osa, {J}rbf and {M}antello, {C}. {C}. and {G}arcia, {D}. and de {S}ouza, {L}. {M}. and da {S}ilva, {C}. {C}. and {G}azaffi, {R}. and da {S}ilva, {C}. {C}. and {T}oledo-{S}ilva, {G}. and {C}ubry, {P}hilippe and {G}arcia, {A}. {A}. {F}. and de {S}ouza, {A}. {P}. and {L}e {G}uen, {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground: {R}ubber tree is cultivated in mainly {S}outheast {A}sia and is by far the most significant source of natural rubber production worldwide. {H}owever, the genetic architecture underlying the primary agronomic traits of this crop has not been widely characterized. {T}his study aimed to identify quantitative trait loci ({QTL}s) associated with growth and latex production using a biparental population established in suboptimal growth conditions in {B}razil. {R}esults: {A} full-sib population composed of 251 individuals was developed from crossing two high-producing {A}siatic rubber tree cultivars, {PR} 255 and {PB} 217. {T}his mapping population was genotyped with microsatellite markers from enriched genomic libraries or transcriptome datasets and single-nucleotide polymorphism ({SNP}) markers, leading to construction of a saturated multipoint integrated genetic map containing 354 microsatellite and 151 {SNP} markers. {H}eight and circumference measurements repeated over a six-year period and registration of cumulative latex production during six consecutive months on the same individuals allowed in-depth characterization of the genetic values of several growth traits and precocious latex production. {G}rowth traits, circumference and height, were overall positively correlated, whereas latex production was not correlated or even negatively correlated with growth traits. {A} total of 86 distinct {QTL}s were identified, most of which were detected for only one trait. {A}mong these {QTL}s, 15 were linked to more than one phenotypic trait (up to 4 traits simultaneously). {L}atex production and circumference increments during the last wintering period were associated with the highest numbers of identified {QTL}s (eleven and nine, respectively), jointly explaining the most significantly observed phenotypic variances (44.1% and 44.4%, respectively). {T}he most important {QTL} for latex production, located on linkage group 16, had an additive effect of the male parent {PB} 217 and corresponded to a {QTL} at the same position detected in a previous study carried out in {T}hailand for the biparental population {RRIM} 600 x {PB} 217. {C}onclusions: {O}ur results identified a set of significant {QTL}s for rubber tree, showing that the performance of modern {A}siatic cultivars can still be improved and paving the way for further marker-assisted selection, which could accelerate breeding programs.},
  keywords = {{H}evea brasiliensis ; {R}ubber production ; {M}ixed model ; {SNP} marker ; {G}enetic mapping ; {M}arker-assisted selection ; {BRESIL}},
  booktitle = {},
  journal = {{BMC} {P}lant {B}iology},
  volume = {18},
  numero = {},
  pages = {art. 223 [16 p.]},
  ISSN = {1471-2229},
  year = {2018},
  DOI = {10.1186/s12870-018-1450-y},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074126},
}