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GrainGenes Reference Report: TAG-91-313

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Reference	TAG-91-313
Title	Locus-specific primers for LMW glutenin genes on each of the group 1 chromosomes of hexaploid wheat
Journal	Theoretical and Applied Genetics
Year	1995
Volume	91
Pages	313-319
Author	Campenhout S Stappen J Sagi L Volckaert G
Abstract	To reveal the chromosomal location of three known low-molecular-weight (LMW) glutenin genes in wheat, we designed and used three sets of sequence-specific primers in polymerase chain reactions (PCR) on 'Chinese Spring' and its derived group I aneuploid nullisomic-tetrasomic stocks Two sets proved to be chromosome specific and amplified sequences from the Glu-A3 and GluD3 loci, respectively The third set was apparently composed of conserved sequences as it produced PCR products in each of the aneuploids Two of these products were cloned, and their sequences differed from the known LMW glutenin genes at several positions Again, primer sets specific for these sequences were designed One set was directed to the Glu-A3 locus, the second set resulted in two PCR products differing in length, one of which was located on chromosome IB and the other on ID Primer sets constructed for the latter two sequences were specific for the Glu-B3 and Glu-D3 loci, respectively Hence, primer sets specific for each of the three homoeologous chromosomes of the group 1 (1A, 1B, 1D) are available. In addition, these locus-specific primers were assayed for their ability to distinguish among wheat cultivars. PCR products amplified with one of the Glu-A3-specific primer sets showed length polymorphisms in various wheat varieties. Varieties carrying the 1RS.1BL translocated chromosomes could be recognized by the absence of a PCR product when the GluB3 primer set was used. These results suggest that PCR with locus-specific primers can be useful in the molecular genetic analysis of hexaploid wheat.
Keyword	[ Hide all but 1 of 16 ] chromosome dna dna primers glu-a3-locus glu-b3-locus glu-d3-locus glutenin homoeologous-chromosomes loci low-molecular-weight molecular-sequence-data molecular-weight nucleotide sequence polymerase chain reaction structural genes triticum aestivum

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