Phytoene synthase 1 ( Psy-1 ) and lipoxygenase 1 ( Lpx-1 ) Genes Influence on Semolina Yellowness in Wheat Mediterranean Germplasm

( ) and ( -1) are key genes involved in the synthesis and catalysis of carotenoid pigments in durum wheat, regulating the increase and decrease in these compounds, respectively, resulting in the distinct yellow color of semolina and pasta. Here, we reported new haplotype variants and/or allele combi...

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Bibliographic Details
Published in:International journal of molecular sciences 2020-06, Vol.21 (13), p.4669
Main Authors: Parada, Roberto, Royo, Conxita, Gadaleta, Agata, Colasuonno, Pasqualina, Marcotuli, Ilaria, Matus, Iván, Castillo, Dalma, de Camargo, Adriano Costa, Araya-Flores, Jorge, Villegas, Dolors, Schwember, Andrés R
Format: Article
Language:English
Subjects:
Carotenoids
Carotenoids - metabolism
Catalysis
Chromosomes
Cultivars
durum wheat
Enzymes
Gene expression
Genes
Genotypes
Geranylgeranyl-Diphosphate Geranylgeranyltransferase - genetics
Geranylgeranyl-Diphosphate Geranylgeranyltransferase - metabolism
Germplasm
grain carotenoids
Haplotypes
Identification
Inbreeding
landraces
Lipoxygenase
Lipoxygenase - genetics
Lipoxygenase - metabolism
lipoxygenase 1
Mediterranean Region
Pasta
Phytoene synthase
phytoene synthase 1
Pigmentation - genetics
Pigments
Population
Quantitative Trait Loci
Seeds
semolina yellowness
Triticum - enzymology
Triticum - genetics
Wheat
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Summary:( ) and ( -1) are key genes involved in the synthesis and catalysis of carotenoid pigments in durum wheat, regulating the increase and decrease in these compounds, respectively, resulting in the distinct yellow color of semolina and pasta. Here, we reported new haplotype variants and/or allele combinations of these two genes significantly affecting yellow pigment content in grain and semolina through their effect on carotenoid pigments. To reach the purpose of this work, three complementary approaches were undertaken: the identification of QTLs associated to carotenoid content on a recombinant inbred line (RIL) population, the characterization of a Mediterranean panel of accessions for and genes, and monitoring the expression of and genes during grain filling on two genotypes with contrasting yellow pigments. Our data suggest that plays a major role during grain development, contributing to semolina yellowness, and appears to be more predominant at post-harvest stages and during pasta making.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms21134669