TY - JOUR
AU - Ryan Graebner
AU - Mitchell Wise
AU - Alfonso Cuesta-Marcos
AU - Matthew Geniza
AU - Tom Blake
AU - Victoria Blake
AU - Joshua Butler
AU - Shiaomen Chao
AU - David Hole
AU - Rich Horsley
AU - Pankaj Jaiswal
AU - Don Obert
AU - Kevin Smith
AU - Steven Ullrich
AU - Patrick Hayes
AB - The Genome-Wide Association Studies approach was used to detect Quantitative Trait Loci associated with tocochromanol concentrations using a panel of 1,466 barley accessions. All major tocochromanol types- α-, β-, δ-, γ-tocopherol and tocotrienol- were assayed. We found 13 single nucleotide polymorphisms associated with the concentration of one or more of these tocochromanol forms in barley, seven of which were within 2 cM of sequences homologous to cloned genes associated with tocochromanol production in barley and/or other plants. These associations confirmed a prior report based on bi-parental QTL mapping. This knowledge will aid future efforts to better understand the role of tocochromanols in barley, with specific reference to abiotic stress resistance. It will also be useful in developing barley varieties with higher tocochromanol concentrations, although at current recommended daily consumption amounts, barley would not be an effective sole source of vitamin E. However, it could be an important contributor in the context of whole grains in a balanced diet.
BT - PloS one
C1 - http://www.ncbi.nlm.nih.gov/pubmed/26208213?dopt=Abstract
DA - 07/2015
DO - 10.1371/journal.pone.0133767
IS - 7
J2 - PLoS ONE
LA - eng
M3 - Reseach Article
N2 - The Genome-Wide Association Studies approach was used to detect Quantitative Trait Loci associated with tocochromanol concentrations using a panel of 1,466 barley accessions. All major tocochromanol types- α-, β-, δ-, γ-tocopherol and tocotrienol- were assayed. We found 13 single nucleotide polymorphisms associated with the concentration of one or more of these tocochromanol forms in barley, seven of which were within 2 cM of sequences homologous to cloned genes associated with tocochromanol production in barley and/or other plants. These associations confirmed a prior report based on bi-parental QTL mapping. This knowledge will aid future efforts to better understand the role of tocochromanols in barley, with specific reference to abiotic stress resistance. It will also be useful in developing barley varieties with higher tocochromanol concentrations, although at current recommended daily consumption amounts, barley would not be an effective sole source of vitamin E. However, it could be an important contributor in the context of whole grains in a balanced diet.
PY - 2015
EP - e0133767
T2 - PloS one
TI - Quantitative Trait Loci Associated with the Tocochromanol (Vitamin E) Pathway in Barley.
UR - http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0133767
VL - 10
SN - 1932-6203
ER -