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Catalogue of Gene Symbols
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Catalogue of Gene Symbols

Gene Symbol detail

Gene Symbold
Class Level 1 Proteins
Level 2 Enzymes
Level 3 Alpha-amylase
Level 4
Symbol Wild Type a-Amy1
Allele a-Amy1aa-Amy1b a-Amy1c
Synonyms a-Amy-B4
Germplasms tv:T. durum ssp. georgicum
Comment The presence of a-Amy1 reported in {1084} was confirmed by segregational tests in a CS/Jones Fife population and in a population derived from a tetraploid cross {1083}. The recombinations with a-AmyB1 were 9.3% and 22.3%, respectively.
A further set of a-amylase genes, Xa-Amy-5 [a-Amy3], was identified in 5A, 5B and 5D by cross-hybridization with a-AMY-1 and a-AMY-2 probes {080}. Only one gene copy appears to be present at each locus. In rye, evidence was obtained for three a-Amy-1 genes, two or three a-Amy-2 genes and three a-Amy-3 genes {907}.
Synthesis of a-amylase isozymes controlled by a-Amy-1 genes on chromosomes 6A and 6D is reduced in DT6BS compared to euploid CS. This result suggests the presence of a gene(s) on the long arm of chromosome 6B, which is (are) required for GA-induced alpha-amylase synthesis in the aleurone {0072}.

Related Reference
080 : Baulcombe DC, Huttly AK, Matienssen RA, Barker RF & Jarvis MG 1987
907 : Masojc P & Gale MD 1991
1083 : Nishikawa K, Bon T & Furuta Y 1993
1084 : Nishikawa K, Furuta Y, Hina Y & Yamada T 1981
0072 : Mrva K & Mares DJ 1999
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