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@ARTICLE{Sciara:1047705,
author = {Sciara, Giuseppe and Bozzoli, Matteo and Fiorani, Fabio and
Nagel, Kerstin A. and Ameer, Amina and Salvi, Silvio and
Tuberosa, Roberto and Maccaferri, Marco},
title = {{G}enetic dissection of the root system architecture
{QTL}ome and its relationship with early shoot development,
breeding and adaptation in durum wheat},
journal = {The plant genome},
volume = {18},
number = {4},
issn = {1940-3372},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {FZJ-2025-04471},
pages = {e70146},
year = {2025},
abstract = {Root system architecture (RSA), shoot architecture, and
shoot-to-root biomass allocation are critical for optimizing
crop water and nutrient capture and ultimately grain yield.
Nevertheless, only a few studies adequately dissected the
genetic basis of RSA and its relationship to shoot
development. Herein, we dissected at a high level of details
the RSA–shoot QTLome in a panel of 194 elite durum wheat
(Triticum turgidum ssp. durum Desf.) varieties from
worldwide adopting high-throughput phenotyping platform
(HTPP) and genome-wide association study (GWAS). Plants were
grown in controlled conditions up to the seventh leaf
appearance (late tillering) in the GROWSCREEN-Rhizo, a
rhizobox platform integrated with automated monochrome
camera for root imaging, which allowed us to phenotype the
panel for 35 shoot and root architectural traits, including
seminal, nodal, and lateral root traits, width and depth,
leaf area, leaf, and tiller number on a time-course base.
GWAS identified 180 quantitative trait loci (QTLs) (−log
p-value ≥ 4) grouped in 39 QTL clusters. Among those, 10,
11, and 10 QTL clusters were found for seminal, nodal, and
lateral root systems. Deep rooting, a key trait for
adaptation to water limiting conditions, was controlled by
three major QTLs on chromosomes 2A, 6A, and 7A. Haplotype
distribution revealed contrasting selection patterns between
the ICARDA rainfed and CIMMYT irrigated breeding programs,
respectively. These results provide valuable insights toward
a better understanding of the RSA QTLome and a more
effective deployment of beneficial root haplotypes to
enhance durum wheat yield in different environmental
conditions.},
cin = {IBG-2},
ddc = {640},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2171 - Biological and environmental resources for
sustainable use (POF4-217)},
pid = {G:(DE-HGF)POF4-2171},
typ = {PUB:(DE-HGF)16},
doi = {10.1002/tpg2.70146},
url = {https://juser.fz-juelich.de/record/1047705},
}