Phytoene synthase 1 (Psy-1) and lipoxygenase 1 (Lpx-1) Genes Influence on Semolina Yellowness in Wheat Mediterranean Germplasm
Costa de Camargo, Adriano
Schwember, Andrés R.
Phytoene synthase 1 (Psy1) and lipoxygenase 1 (Lpx-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 Psy1 and Lpx-1 genes, and monitoring the expression of Psy1 and Lpx-1 genes during grain filling on two genotypes with contrasting yellow pigments. Our data suggest that Psy1 plays a major role during grain development, contributing to semolina yellowness, and Lpx-1 appears to be more predominant at post-harvest stages and during pasta making.
631 - Agricultura. Agronomia. Maquinària agrícola. Sòls. Edafologia agrícola
Is part of
International Journal of Molecular Sciences
Parada, Roberto, Conxita Royo, Agata Gadaleta, Pasqualina Colasuonno, Ilaria Marcotuli, Iván Matus, and Dalma Castillo et al. 2020. "Phytoene Synthase 1 (Psy-1) And Lipoxygenase 1 (Lpx-1) Genes Influence On Semolina Yellowness In Wheat Mediterranean Germplasm". International Journal Of Molecular Sciences 21 (13): 4669. doi:10.3390/ijms21134669.
Grant agreement number
MINECO/Programa Nacional de Proyectos de Investigación Fundamental/AGL2012-37217/ES/HERRAMIENTAS PARA LA MEJORA DEL TRIGO DURO FRENTE A LOS RETOS DEL CAMBIO CLIMATICO/
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