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GrainGenes Reference Report: HDT-141-39

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Reference	HDT-141-39
Title	Distribution and inheritance of beta -amylase alleles in north European barley varieties
Journal	Hereditas (Lund)
Year	2004
Volume	141
Pages	39-45
Author	Sjakste T Roder M
Abstract	The allelic diversity and inheritance of polymorphic sites of the intron III-exon IV region of the seed-specific beta -amylase gene Bmy1 were studied in a set of 55 barley accessions composed mainly of old Latvian and Scandinavian commercial cultivars and 3 Hordeum spontaneum lines from Israel. A cleaved amplified polymorphic marker was used for genotyping the C698 right arrow T polymorphism encoding alleles of beta -amylase with different thermostability. The genotype C698, which is diagnostic for a more thermostable isoform of the beta -amylase, was detected in 13 of the investigated accessions. In most cases, the origin of the C698 genotype could be traced back to the old Danish cultivar Binder in the pedigree. However, this genotype was lost in later cultivars originating from Binder. A 6+1 bp deletion event in intron III of the beta -amylase gene was in all cases linked to the presence of the C698 mutation, while the repeat number of a microsatellite in intron III had no correlation to the presence of the C698 mutation. Sequence analysis revealed a number of haplotypes within exon IV that did not result in amino acid changes due to the degenerated genetic code
Keyword	allele [ Show all 16 ]

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