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Concentrations of cadmium (Cd) in the grain of many durum wheat (Triticum turgidum ssp. durum) varieties grown in North American prairie soils often exceed international trade standards. Genotypic differences in root-to-shoot translocation of Cd are a major determinant of intraspecific variation in the accumulation of Cd in grain. We tested the extent to which changes in whole-plant Cd accumulation and the distribution of Cd between tissues influences Cd accumulation in grain by measuring Cd accumulation throughout the grain filling period in two near-isogenic lines (NILs) of durum wheat that differ in grain Cd accumulation.

This self-contained mini-website contains the complete growth and metal (cadmium [Cd], copper [Cu], iron [Fe], manganese [Mn], zinc [Zn]) accumulation data collected between flowering (anthesis) and physiological grain maturity (42 days post-anthesis, DPA) for low- and high-Cd accumulating NILs of durum wheat grown in chelator-buffered hydroponic culture.

The results are presented as: i) an interactive tissue map, and ii) animated time-course of metal accumulation.


Harris NS and Taylor GJ (2013)
Cadmium uptake and partitioning in durum wheat during grain filling.
BMC Plant Biology 13: 103 [ BMC Plant Biology | PubMed | PubMed Central | doi:10.1186/1471-2229-13-103 ]

Marco Maccaferri, Neil S. Harris, […], Luigi Cattivelli (2019)
Durum wheat genome highlights past domestication signatures and future improvement targets.
Nature Genetics 51: 885-895 [ Nature Genetics | PubMed | doi:10.1038/s41588-019-0381-3 ]

Durum wheat growth

Time-lapse of durum wheat growth

Time-lapse of durum wheat growth. Plants of low- and high-Cd near-isogenic lines of durum wheat were grown from seedlings to physiological grain maturity in chelator-buffered nutrient culture. [ Download video: MP4 ]

Durum wheat plant, 14 DPA

Durum wheat plant at 14 days post-anthesis grown in chelator-buffered nutrient culture. [ Download video: MP4 ]