Association between allelic variation at the Phytoene synthase 1 gene and yellow pigment content in the wheat grain

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Wenjun Zhang, Jorge Dubcovsky

Abstract

A better understanding of the genetic factors controlling grain yellow pigment content (GYPC) is important for both pasta (high GYPC) and bread wheat (low GYPC) quality improvement. Quantitative trait loci (QTL) for GYPC have been mapped repeatedly on the distal regions of chromosome arms 7AL and 7BL in wheat, and the Phytoene synthase 1 (PSY-1) gene located in this region has been proposed as a candidate gene. We show here that PSY-E1, the tall wheatgrass orthologue, is completely linked to differences in GYPC, and that selection for white endosperm mutants in recombinant lines carrying this gene resulted in the identification of a mutation in a conserved amino acid of PSY-E1. These results, together with the association between GYPC and allelic differences in PSY-1 in hexaploid wheat, suggest that this gene plays an important role in the determination of GYPC. However, a second white endosperm mutant previously mapped to chromosome arm 7EL showed no mutations in PSY-E1 suggesting the existence of additional gene(s) affecting GYPC in this chromosome region. This hypothesis was further supported by the mapping of QTL for GYPC on 7AL proximal to PSY-1 in a cross between pasta wheat varieties UC1113 and Kofa. Interestingly, the K...Continue Reading

References

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Jun 28, 2003·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A CenciJ Dubcovsky
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May 25, 2005·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Wenjun ZhangJorge Dubcovsky
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Citations

Sep 11, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·W ZhangJ Dubcovsky
Mar 26, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A SinghA K Singh
Jul 9, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·B Emma Huang, Andrew W George
Mar 29, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·A C CrawfordM G Francki
Feb 3, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Sybil A Herrera-FoesselEvans S Lagudah
Dec 18, 2008·Genome Génome / Conseil National De Recherches Canada·S ReimerA K Singh
Nov 6, 2012·BMC Plant Biology·Cristina Rodríguez-Suárez, Sergio G Atienza
Feb 8, 2014·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Z NiuSteven S Xu
Feb 15, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Kun LiJorge Dubcovsky
Nov 26, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Shengnan ZhaiXianchun Xia
Mar 2, 2010·Biotechnology Advances·G Ram KumarM S Madhav
Feb 7, 2009·Current Opinion in Plant Biology·A DistelfeldJ Dubcovsky
Aug 26, 2016·Frontiers in Plant Science·Shengnan ZhaiZhonghu He
Jan 8, 2013·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Irma TerraccianoRoberto Tuberosa
Mar 13, 2013·Functional & Integrative Genomics·Monika K Michalak de JimenezShahryar F Kianian
Nov 22, 2018·Frontiers in Plant Science·Martina RosellóJose Miguel Soriano
Jun 10, 2017·Frontiers in Plant Science·Pasqualina ColasuonnoAgata Gadaleta
Jul 8, 2020·International Journal of Molecular Sciences·Roberto ParadaAndrés R Schwember

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