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Final Report: CMB00014 - Accelerating breeding progress by predicting the effects of genes influencing yield and quality in wheat and barley

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The effects of genes on traits in wheat of commercial importance were estimated using large plant breeding data sets, diagnostic markers and sophisticated statistical methods... The earliest successes occurred with the genes controlling grain quality in wheat, in particular enabling wheat breeders to select against alleles, or variants, of the glutenin and puroindoline genes that had negative effects on dough rheology traits (dough strength and dough extensibility) and on milling yield... It is suspected that Glu-D3 might interact with storage protein activator (SPA) genes the project team has begun typing the same lines used for Glu-D3 with a diagnostic marker developed by French scientists for SPA-B. Wheat breeding collaborators in Australian Grain Technologies (AGT) and LongReach have given this a high priority, because interactions between SPA and glutenin genes might explain why cultivars such as Bolac have higher than expected grain quality, while the reverse occurs for cultivars such as H45 ...
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