Wheat deletion lines are currently being screened for candidate genes involved in xanthophyll biosynthesis. Preliminary results mapped the (Rab) geranylgeranyl transferase I α-subunit gene to the distal bin of the long arms of chromosomes 7B and 7D (Figure 1).

Genetic evidence from allelic variants of wheat and transgenic rice (Oryza sativa) calli demonstrated that XAT catalyzes the formation of xanthophyll esters. XAT has broad substrate specificity and can esterify lutein, β-cryptoxanthin, and zeaxanthin using multiple acyl donors, yet it has a preference for triacylglycerides, indicating that the ...

This study sought to identify evolutionary relationships among known Psy-A1 alleles, to establish which Psy-A1 alleles are present in selected Australian wheat genotypes and establish their role in controlling variation for flour b* colour via QTL analysis.

2011年10月15日 · Xanthophyll cycle-dependent energy dissipation in the light-harvesting antennae and the detoxification of reduced ROS by chloroplast's antioxidant systems play a photoprotective role in leaves by mitigating oxidative damage to cellular macromolecules under high light conditions.

2011年3月27日 · This study sought to identify evolutionary relationships among known Psy-A1 alleles, to establish which Psy-A1 alleles are present in selected Australian wheat genotypes and establish their role in controlling variation for flour b* colour via QTL analysis.

2001年1月1日 · In this review, we summarized the genes/QTLs mapped for wheat starch, protein, and micronutrient (e.g., calcium, iron, zinc, and selenium) content, and pigments (carotenoids and anthocyanins ...

2011年10月15日 · The objective of this study was to further investigate the possible mechanism responsible for tolerance to photoinhibition in the hybrid. Photosystem II (PSII) photochemistry, the xanthophyll cycle, and antioxidative defense system were compared between the hybrid and its parents subjected to high light stress (1500μmolm(-2)s(-1)).

1999年3月1日 · We analyzed antioxidative defenses, photosynthesis, and pigments (especially xanthophyll-cycle components) in two wheat (Triticum durum Desf.) cultivars, Adamello and Ofanto, during dehydration and rehydration to determine the difference in their sensitivities to drought and to elucidate the role of different protective mechanisms against ...

Australian wheat classes deliver grain of consistent physical quality, processing performance and end-product quality. Wheat is Australia’s biggest grain crop and Australian growers produce an average of 25 million tonnes of wheat each year. This accounts for 3% of the world’s wheat production and 10 to 15% of the world’s annual global wheat trade.

The Wheat Variety Master List contains the names of all current varieties approved by Australia’s wheat classification process. The Wheat Variety Master List records the highest possible class available for respective varieties across each Zone.