title: The inheritance of wheat grain longevity: a comparison between induced and natural ageing.
abstract: Seed longevity is an important trait for both ex situ genebanks and the seed industry. It is partially determined by genetic factors, but is also dependent on the environmental conditions experienced by the mother plant during seed maturation, as well as those imposed during the post-harvest and storage periods. For practical reasons, the variation in longevity has repeatedly been analysed by treating fresh seed to various induced ageing protocols, but the extent to which these procedures mimic the natural ageing process remains debatable. Here, a comparison was attempted between the wheat genomic regions identified by biparental mapping as harbouring determinants of viability loss identified in grain which had been either aged artificially or had been stored long term. Only one locus proved to be shared, but even here, the parental origin of the positive allele differed. Correlation analysis revealed no relationship between various induced ageing treatments and long-term storage.
authors.affiliation: Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, 24-100, Puławy, Poland.|Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstr. 3, 06466, Stadt Seeland, OT Gatersleben, Germany.
authors.forename: Monika
authors.initials: M
authors.lastname: Agacka-Mołdoch
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstr. 3, 06466, Stadt Seeland, OT Gatersleben, Germany.|Nuclear Institute of Agriculture and Biology (NIAB), Jhang Road, Faisalabad, Pakistan.
authors.forename: Mian Abdur Rehman
authors.initials: MA
authors.lastname: Arif
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstr. 3, 06466, Stadt Seeland, OT Gatersleben, Germany.
authors.forename: Ulrike
authors.initials: U
authors.lastname: Lohwasser
authors.affiliation: Institute of Soil Science and Plant Cultivation, State Research Institute, ul. Czartoryskich 8, 24-100, Puławy, Poland.
authors.forename: Teresa
authors.initials: T
authors.lastname: Doroszewska
authors.affiliation: Plant Sciences Department, Mail Stop 3, University of California, One Shields Avenue, Davis, CA, 95616, USA.
authors.forename: Calvin O
authors.initials: CO
authors.lastname: Qualset
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research, Corrensstr. 3, 06466, Stadt Seeland, OT Gatersleben, Germany. boerner@ipk-gatersleben.de.
authors.forename: Andreas
authors.initials: A
authors.lastname: Börner
mesh_terms: D000483:Alleles; D002874:Chromosome Mapping; D000069599:Crop Production; D008040:Genetic Linkage; D018525:Germination / Q000235:genetics*; D040641:Quantitative Trait Loci; D012639:Seeds / Q000235:genetics*; D013997:Time Factors; D014908:Triticum / Q000235:genetics*
keywords: Controlled deterioration; Germination; Germplasm conservation; QTL mapping; Triticum aestivum