RRC ID 36353
Author Okamoto Y, Nguyen AT, Yoshioka M, Iehisa JC, Takumi S.
Title Identification of quantitative trait loci controlling grain size and shape in the D genome of synthetic hexaploid wheat lines.
Journal Breed Sci
Abstract Synthetic hexaploid wheat is an effective genetic resource for transferring agronomically important genes from Aegilops tauschii to common wheat. Wide variation in grain size and shape, one of the main targets for wheat breeding, has been observed among Ae. tauschii accessions. To identify the quantitative trait loci (QTLs) responsible for grain size and shape variation in the wheat D genome under a hexaploid genetic background, six parameters related to grain size and shape were measured using SmartGrain digital image software and QTL analysis was conducted using four F2 mapping populations of wheat synthetic hexaploids. In total, 18 QTLs for the six parameters were found on five of the seven D-genome chromosomes. The identified QTLs significantly contributed to the variation in grain size and shape among the synthetic wheat lines, implying that the D-genome QTLs might be at least partly functional in hexaploid wheat. Thus, synthetic wheat lines with diverse D genomes from Ae. tauschii are useful resources for the identification of agronomically important loci that function in hexaploid wheat.
Volume 63(4)
Pages 423-9
Published 2013-12-1
DOI 10.1270/jsbbs.63.423
PII 63_423
PMID 24399915
PMC PMC3859354
IF 1.865
Times Cited 41
Wheat LPGKU2272(Langdon) KU-2069 KU-2090 KU-2097 KU-2159