The HMA2 Gene Expression in Leaves of Introgressive Wheat Lines under Zn Optimum and Deficiency Content in Root Environment

In two introgressive lines of bread wheat (15-7-1 and 15-7-2), which differ in the allelic status of the Gpc-B1 gene, the expression of the gene encoding the HMA2 transport protein in flag leaves under optimum Zn content in substrate (2 µМ) and in its deficiency (0 µМ) was investigated. This is the...

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Bibliographic Details
Published in:Doklady. Biochemistry and biophysics 2022-08, Vol.505 (1), p.141-144
Main Authors: Kaznina, N. M., Dubovets, N. I., Repkina, N. S., Batova, Yu. V., Ignatenko, A. A., Orlovskaya, O. A., Titov, A. F.
Format: Article
Language:English
Subjects:
Alleles
B1 gene
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biophysics
Gene expression
Leaves
Life Sciences
Molecular Biology
Protein transport
Zinc
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Summary:In two introgressive lines of bread wheat (15-7-1 and 15-7-2), which differ in the allelic status of the Gpc-B1 gene, the expression of the gene encoding the HMA2 transport protein in flag leaves under optimum Zn content in substrate (2 µМ) and in its deficiency (0 µМ) was investigated. This is the first study to show that the plants carrying functional allele of the Gpc-В1 gene (line 15-7-1) have a higher level of TaHMA2 transcripts than the plants with nonfunctional allele of the Gpc-В1 gene (line 15-7-2) both at optimum Zn content in substrate and at its deficiency. Importantly, the high TaHMA2 gene expression did not affect the wheat shoot growth but correlated with a high Zn concentration in the aboveground part of plants. It is assumed that the NAC transcription factor encoded by the Gpc-В1 gene may be involved in the regulation of the ТаНМА2 gene expression .
ISSN:1607-6729
1608-3091
DOI:10.1134/S1607672922040056