A new PCR-based marker on chromosome 4AL for resistance to pre-harvest sprouting in wheat (Triticum aestivum L.)

X-Q Zhang; C. Li; A. Tay; R. Lance; D. Mares; J. Cheong; M. Cakir; J. Ma; R. Appels

doi:10.1007/s11032-008-9169-3

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A new PCR-based marker on chromosome 4AL for resistance to pre-harvest sprouting in wheat (Triticum aestivum L.)

Journal article

Peer reviewed

A new PCR-based marker on chromosome 4AL for resistance to pre-harvest sprouting in wheat (Triticum aestivum L.)

X-Q Zhang, C. Li, A. Tay, R. Lance, D. Mares, J. Cheong, M. Cakir, J. Ma and R. Appels

Molecular Breeding, Vol.22(2), pp.227-236

2008

DOI: https://doi.org/10.1007/s11032-008-9169-3

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Abstract

Pre-harvest sprouting (PHS) is a complex trait controlled by multiple genes with strong interaction between environment and genotype that makes it difficult to select breeding materials by phenotypic assessment. One of the most important genes for pre-harvest sprouting resistance is consistently identified on the long arm of chromosome 4A. The 4AL PHS tolerance gene has therefore been targeted by Australian white-grained wheat breeders. A new robust PCR marker for the PHS QTL on wheat chromosome 4AL based on candidate genes search was developed in this study. The new marker was mapped on 4AL deletion bin 13-0.59-0.66 using 4AL deletion lines derived from Chinese Spring. This marker is located on 4AL between molecular markers Xbarc170 and Xwg622 in the doubled-haploid wheat population Cranbrook × Halberd. It was mapped between molecular markers Xbarc170 and Xgwm269 that have been previously shown to be closely linked to grain dormancy in the doubled haploid wheat population SW95-50213 × Cunningham and was co-located with Xgwm269 in population Janz × AUS1408. This marker offers an additional efficient tool for marker-assisted selection of dormancy for white-grained wheat breeding. Comparative analysis indicated that the wheat chromosome 4AL QTL for seed dormancy and PHS resistance is homologous with the barley QTL on chromosome 5HL controlling seed dormancy and PHS resistance. This marker will facilitate identification of the gene associated with the 4A QTL that controls a major component of grain dormancy and PHS resistance.

Details

Title: A new PCR-based marker on chromosome 4AL for resistance to pre-harvest sprouting in wheat (Triticum aestivum L.)
Authors/Creators: X-Q Zhang (Author/Creator) - Murdoch University
C. Li (Author/Creator) - Agriculture and Food
A. Tay (Author/Creator) - Agriculture and Food
R. Lance (Author/Creator) - Agriculture and Food
D. Mares (Author/Creator) - The University of Adelaide
J. Cheong (Author/Creator) - South Australian Research and Development Institute
M. Cakir (Author/Creator) - Murdoch University
J. Ma (Author/Creator) - Agriculture and Food
R. Appels (Author/Creator) - Murdoch University
Publication Details: Molecular Breeding, Vol.22(2), pp.227-236
Publisher: Kluwer Academic Publishers
Identifiers: 991005544895207891
Murdoch Affiliation: State Agricultural Biotechnology Centre; School of Biological Sciences and Biotechnology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.4 Crop Science; 3.4.96 QTL
Web Of Science research areas: Agronomy; Genetics & Heredity; Horticulture; Plant Sciences
ESI research areas: Plant & Animal Science