Molecular characterization and mapping of ALMT1, the aluminium-tolerance gene of bread wheat (Triticum aestivum L.)
Raman, Harsh; Zhang, Kerong; Cakir, Mehmet; Appels, Rudi; Garvin, David F; Maron, Lyza G; Kochian, Leon V; Moroni, J Sergio; Raman, Rosy; Imtiaz, Muhammad; Drake-Brockman, Fiona; Waters, Irene; Martin, Peter; Sasaki, Takayuki; Yamamoto, Yoko; Matsumoto, Hideaki; Hebb, Diane M; Delhaize, Emmanual; Ryan, Peter R
The major aluminum (Al) tolerance gene in wheat ALMT1 confers an Al-activated efflux of malate from root apices. We determined the genomic structure of the ALMT1 gene and found it consists of 6 exons interrupted by 5 introns. Sequencing a range of wheat genotypes identified 3 alleles for ALMT1, 1 of which was identical to the ALMT1 gene from an Aegilops tauschii accession. The ALMT1 gene was mapped to chromosome 4DL using 'Chinese Spring' deletion lines, and loss of ALMT1 coincided with the...[Show more]
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