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- Title
Identification of LMW Glutenin-Like Genes from Secale sylvestre Host.
- Authors
Shang, H.-Y.; Wei, Y.-M.; Long, H.; Yan, Z.-H.; Zheng, Y.-L.
- Abstract
Three low-molecular-weight (LMW) glutenin-like genes (designated as Ssy1, Ssy2, and Ssy3) from Secale sylvestre Host were isolated and characterized. The three genes consist of a predicted highly conservative signal peptide with 20 amino acids, a short N-terminal region with 13 amino acids, a highly variable repetitive domain and a less variable C-terminal domain. The deduced amino acid sequences of the three genes were the LMW-m type due to a methionine residue at the N-terminus. The phylogenetic analysis indicated that the prolamin genes could be perfectly clustered into five groups, including HMW-GS, LMW-GS, α/β-, γ-, and κ-prolamin. The LMW glutenin-like genes of S. sylvestre were more orthologous with the LMW-GS genes of wheat and B hordein genes of barley, which also had been confirmed by the homology analysis with the LMW-GS of wheat at Glu-A3, Glu-B3, and Glu-D3 loci. These results indicated that a chromosome locus (designated as Glu-R3) might be located on the R genome of S. sylvestre with the functions similar to the Glu-3 locus in wheat and its related species.
- Subjects
MOLECULAR weights; GENES; SECALE; HOST plants; IMINO acids; PEPTIDES
- Publication
Russian Journal of Genetics, 2005, Vol 41, Issue 12, p1372
- ISSN
1022-7954
- Publication type
Article
- DOI
10.1007/s11177-006-0009-4