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Identification of Durum Wheat Cultivars and Their Tetraploid Relatives with Low Cadmium Content

Mehmet Tekin1orcid tiny, Ahmet Cat2orcid tiny, Sahriye Sönmez3orcid tiny and Taner Akar1*orcid tiny

1Akdeniz University, Faculty of Agriculture, Department of Field Crops, 07059 Antalya, Turkey
2Akdeniz University, Faculty of Agriculture, Department of Plant Protection, 07059 Antalya, Turkey
3Akdeniz University, Faculty of Agricu lture, Department of Soil Science, 07059 Antalya, Turkey

Article history:
Received: 8 October 2019
Accepted: 29 March 2020
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Key words:
durum wheat characterization, low Cd content, tetraploid wheat, marker-assisted breeding

In this study, 71 durum wheat cultivars (Triticum durum Desf.), 22 emmer wheat (Triticum dicoccum L.) and 11 wild emmer (Triticum dicoccoides L.) genotypes were genetically characterized to determine the alleles associated with high cadmium (Cd) content. After genotypic characterization, 14 cultivars selected among all genotypes with low and high Cd content were phenotyped by a pot experiment to verify the genotypic data. Identification of 32 durum wheat, one emmer wheat and four wild emmer genotypes showed that they have alleles associated with high Cd content, while 68 genotypes of which 39 durum wheat, 21 emmer wheat and 7 wild emmer cultivars had alleles associated with low Cd content. Moreover, phenotypic data obtained from pot experiment were similar to the molecular data. To sum up, the marker successfully classified durum wheat cultivars into either high or low accumulators and these results can be safely used in breeding programs to improve new durum wheat cultivars with alleles associated with low Cd content. Due to routine use of phosphorus fertilizers in agricultural areas and other anthropogenic factors related to Cd toxicity, new durum wheat cultivars with low Cd content should be urgently developed for safe production of macaroni or other types of wheat products for human and animal consumption.

*Corresponding author: tel3  +905383158744 

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