GrainGenes Reference Report: EUP-213:19
Reference
EUP-213:19
Title
Conferring resistance to pre-harvest sprouting in durum wheat by a QTL identified in Triticum spelta
Journal
Euphytica
Year
2017
Volume
213:19
Pages
19
Author
[ Hide all but 1 of 15 ] Liu Y Zhou Y Wight C Pu Z Qi P Jiang Q Deng M Wang Z Wei Y Cao W Liu D Zheng Y Liu C Fregeau-Reid J Wang J
Abstract
Pre-harvest sprouting (PHS) causes significant yield loss and degrade the end-use quality of wheat, especially in regions with prolonged wet weather during the harvesting season. Unfortunately, the gene pool of Triticum durum (tetraploid durum wheat) has narrow genetic base for PHS resistance. Therefore, finding out new genetic resources from other wheat species to develop PHS resistance in durum wheat is of importance. A major PHS resistance QTL, Qphs.sicau-3B.1, was mapped on chromosome 3BL in a recombinant inbred line population derived from 'CSCR6' (Triticum spelta), a PHS resistant hexaploid wheat and 'Lang', a PHS susceptible Australian hexaploid wheat cultivar. This QTL, Qphs.sicau-3B.1, is positioned between DArT marker wPt-3107 and wPt-6785. Two SCAR markers (Ph3B.1 and Ph3B.2) were developed to track this major QTL and were used to assay a BC2F8 tetraploid population derived from a cross between the durum wheat 'Bellaroi' (PHS susceptible) and 'CSCR6' (PHS resistant). Phenotypic assay and marker-assisted selection revealed five stable tetraploid lines were highly PHS resistant. This study has successfully established that PHS-resistance QTL from hexaploid wheat could be efficiently introgressed into tetraploid durum wheat. This tetraploid wheat germplasm could be useful in developing PHS resistant durum cultivars with higher yield and good end-use quality.
External Databases
https://doi.org/10.1007/s10681-016-1796-x
Germplasm
Lang CSCR6
QTL
Qphs.sicau-3B.1 QTL1482_3B-Liu_et_al._2017a
Trait Study
Pre-harvest sprouting, Lang x CSCR6, Liu2017a
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: EUP-213:19
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||