Mapping components of flour and noodle colour in Australian wheat

Article


Mares, D. J. and Campbell, A. W.. 2001. "Mapping components of flour and noodle colour in Australian wheat." Australian Journal of Agricultural Research. 52 (11/12), pp. 1297-1309. https://doi.org/10.1071/AR01048
Article Title

Mapping components of flour and noodle colour in Australian wheat

ERA Journal ID5177
Article CategoryArticle
AuthorsMares, D. J. (Author) and Campbell, A. W. (Author)
Journal TitleAustralian Journal of Agricultural Research
Journal Citation52 (11/12), pp. 1297-1309
Number of Pages13
Year2001
PublisherCSIRO Publishing
Place of PublicationAustralia
ISSN0004-9409
1444-9838
Digital Object Identifier (DOI)https://doi.org/10.1071/AR01048
Web Address (URL)https://www.publish.csiro.au/cp/AR01048
Abstract

Flour and noodle colour influence the value of wheat (Triticum aestivum L.) and are obvious targets for breeders seeking to improve quality, end-product range, and marketability of wheat. The objective of this investigation was to identify quantitative trait loci (QTLs) associated with flour and noodle colour traits and with individual components of colour. One hundred and sixty-three doubled haploid lines derived from Sunco x Tasman, white-grained, prime hard, and hard wheats adapted to the north-eastern region of Australia were used for the bulk of this study and were supplemented by doubled haploid populations derived from CD87 x Katepwa and Cranbrook x Halberd for comparisons of flour colour. Samples of Sunco x Tasman, together with parental lines, were grown at Narrabri, NSW, in 1998 and 1999 and at Roma, Qld, in 1998 and used for visible light reflectance measurements of flour brightness (CIE L*) and yellowness (CIE b*), and white salted noodle (WSN) and yellow alkaline noodle (YAN) brightness, yellowness, and colour stability. Xanthophyll content and polyphenol oxidase (PPO) activity were measured spectrophotometrically. No consistent QTLs were identified for flour L* or initial L* of WSN and YAN. Xanthophyll content was very strongly associated with QTLs located on chromosomes 3B and 7A and these QTLs also had a major influence on flour b*, WSN b*, and YAN b*. Noodle brightness at 2, 24, and 48 h and the magnitude of change in noodle L* and b* with time were affected by QTLs on 2D, contributed by Tasman, and, to a lesser degree, 2A. The QTL on 2D was clearly associated with control of grain PPO, an enzyme implicated in darkening of Asian style noodles. QTLs located on 2B, 4B, and 5B and associated with control of grain size or flour protein content also appeared to influence a number of colour traits.

Keywordscolour stability; polyphenol oxidase; xanthophyll
ANZSRC Field of Research 2020350602. Consumer-oriented product or service development
310506. Gene mapping
300406. Crop and pasture improvement (incl. selection and breeding)
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Byline AffiliationsUniversity of South Australia
Centre for Rural and Environmental Biotechnology
Institution of OriginUniversity of Southern Queensland
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