Segregation of glutenins in wheatxmaize-derived doubled haploid wheat populations

Kammholz, Stephen J. and Grams, Raechelle A. and Banks, Phillip and Sutherland, Mark W. (1998) Segregation of glutenins in wheatxmaize-derived doubled haploid wheat populations. Australian Journal of Agricultural Research, 49 (8). pp. 1253-1259. ISSN 0004-9409

Abstract

The segregation of both high and low molecular weight glutenin subunits across 7 F1 wheat (Triticum aestivum L.) × maize (Zea mays L.) derived doubled haploid populations was examined. The F1 wheats used in each population were produced from parents of interest to Australian wheat breeding programs. The parents varied by up to 5 glutenin subunit loci. Examination of subunits individually within each population using a chi-square analysis revealed that all but 2 of the 26 pairs of alleles analysed fitted the expected 1 : 1 segregation ratio. Glutenin profiles were examined for each cross individually and all but one (Sonalika/Hartog) fitted the expected Mendelian segregation pattern. The analysis of allele distribution of the 6 glutenin loci across all 7 crosses showed all falling well within expected segregation ratios. Closer examination of parental lines and populations revealed irregularities which conflict with original assumptions and provide a valid explanation for the few segregation distortions observed. It is concluded that wheat × maize-derived doubled haploid populations represent a unbiased assortment of parental gametes on both arms of Group 1 chromosomes.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author version not held. Published version cannot be displayed. See Publisher's link to published version.
Depositing User: Prof Mark Sutherland
Faculty / Department / School: Historic - Faculty of Sciences - Department of Biological and Physical Sciences
Date Deposited: 31 Jul 2008 06:04
Last Modified: 20 Jun 2012 01:35
Uncontrolled Keywords: Triticum aestivum, Zea mays, glutenin subunits, segregation distortion
Fields of Research (FOR2008): 06 Biological Sciences > 0603 Evolutionary Biology > 060310 Plant Systematics and Taxonomy
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070305 Crop and Pasture Improvement (Selection and Breeding)
06 Biological Sciences > 0604 Genetics > 060411 Population, Ecological and Evolutionary Genetics
Identification Number or DOI: doi: 10.1071/A98032
URI: http://eprints.usq.edu.au/id/eprint/3148

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