Assotiation of total carotenoid level in maize grain (Zea mays L.) with polimorphic site InDel1 in PSY1 gene

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Background. The Maize is the only major cereal crop that can naturally accumulate appreciable levels of carotenoids which are the source of provitamin A. The estimation of assotiation of total carotenoid level in maize grain with polimorphism PSY1 InDel1 was made. 

Materials and Methods. We used collection of 54 maize genotypes of different eco-geographical origin, methods of PCR analysis, spectrophotometry, statistical analysis in this study. 

Results. Total carotenoid content of genotypes with favorable allele of InDel1 was 0,60 mg/100 g, which was significantly higher than that of the samples with unfavorable allele (0,43 mg/100 g). 

Conclusion. Thus, the use of PCR-based markers for the PSY1 InDel1 polymorphism is a reliable method for the identification of genotypes with high carotenoid accumulation in maize grain.

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About the authors

Olga A. Orlovskaya

Institute of Genetics and Cytology of the National Academy of Sciences of Belarus

Author for correspondence.

Russian Federation Leading researcher, laboratory of ecological genetics and biotechnology

Svetlana I. Vakula

Institute of Genetics and Cytology of the National Academy of Sciences of Belarus


Russian Federation Junior researcher, laboratory of ecological genetics and biotechnology

Lubov V. Khotyleva

Institute of Genetics and Cytology of the National Academy of Sciences of Belarus


Russian Federation Main researcher, laboratory of ecological genetics and biotechnology

Alexander V. Kilchevsky

National Academy of Sciences of Belarus


Russian Federation Main scientific secretary


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Supplementary files

Supplementary Files Action
Fig. 1. Electrophoregram of amplification products with primers for PSY1 InDel1 polymorphism of Plant Breeding Institute of Polesye maize lines: M — molecular weight marker, 1 — BL 365, 2 — BL 333, 3 — Коs 28/07, 4 — BKR 710, 5 — DК 276, 6 — Со 124-1, (favorable allele 0: 870 bp, unfavorable allele 378: 1248 bp)

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Fig. 2. Total carotenoid content in samples of different color gradations maize grain

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Fig. 3. The effect of different alleles for PSY1 InDel1 on the carotenoid content in maize grain

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Copyright (c) 2016 Orlovskaya O.A., Vakula S.I., Khotyleva L.V., Kilchevsky A.V.

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