GrainGenes
A Database for Triticeae and Avena
Coordinator's report: Anthocyanin genes
Barbro-Jende StridCarlsberg Research Laboratory
Gamle Carlsberg Vej 10, DK-2500 Valby, Copenhagen, Denmark
Stock lists of the Carlsberg collection of flavonoid mutants have been published in BGN 18:74-79 and BGN 20:87-88. Since then a few proanthocyanidin-free mutants have been localized to an Ant gene and a new Ant gene locus, Ant28, was discovered in 1992.
The following additions should be made to the previously published stock lists.
| Locus Ant 13 | Proanthocyanidin-, catechin and anthocyanin-free, located close to the centromere of chromosome 6 (Falk, 1985), 146 alleles. Ant 13 is a regulatory gene affecting the transcription of structural genes in the flavonoid pathway (Jende-Strid, 1992). |
| New alleles: ant 13-5006, -5007 (in Igri), -2019, -2037, -2040 (in Natasha), 2 l O3. -2 l l 4 (in Carula). | |
| Locus Ant 17 | Proanthocyanidin-, catechin, and anthocyanin-free, located on the short arm of chromosome 3 (Falk, pers. comm.), 178 alleles. |
| New allele: ant 17-2106 (in Ca 708912). | |
| Locus Ant 18 | Proanthocyanidin-, catechin and anthocyanin-free, shrunken grains, located on the long arm of chromosome 1 (Falk, pers. comm.), 134 alleles. Ant 18 is the structural gene coding for dihydroflavonol reductase (Jende-Stride 1992). |
| New alleles: ant 18-5001, -5002, -5003, -5004, -5005, -5008, -5009, -5010 (all in Igri). | |
| Locus Ant 26 | Proanthocyanidin-free but synthesizes (+)-catechin and a wildtype amount of anthocyanin, 6 alleles. Ant 26 controls the condensation of leucoanthocyanidin and catechin to yield proanthocyanidin (Jende-Strid, 1992). |
| New alleles: ant 26-2002, -2004 (both in Grit). | |
| Locus Ant 27 | Proanthocyanidin-free but synthesizes trace amounts of (+)-catechin and a wildtype amount of anthocyanin, 5 alleles. Probably a regulatory gene (JendeStrid, 1992). |
| New alleles: ant 27-2043, -2045 (both in Arena). | |
| Locus Ant 28 | Proanthocyanidin-free but synthesizes a wild type amount of anthocyanin, 9 alleles. |
| Alleles: ant 28-484 (in Grit), -493, -494, -495 (in Catrin), -2092, -2093, -2095 (in Nairn), -2131, -2132 (in Alexis). |
References:
Falk, D. E. 1985. Genetic studies with proanthocyanidin-free barley. BGN 15:27-30.
Falk, D. E. Personal communication.
Jende-Strid, B. 1992. Proanthocyanidin-free barley - Genetics, biochemistry and breeding. Thesis, The Royal Veterinary and Agricultural University, Copenhagen.