International Database for Barley Genes and Barley Genetic Stocks

BGS 605, Proanthocyanidin-free 25, ant25

BGN  29:96
Stock number: BGS 605
Locus name: Proanthocyanidin-free 25
Locus symbol: ant25

Previous nomenclature and gene symbolization:



Monofactorial recessive (2, 3).
Location is unknown.


Mutant plants do synthesize anthocyanin in the vegetative parts, but the expression of anthocyanin pigmentation seems to be more dependent on the growing conditions than in the wild type barley. Developing grains of the mutants synthesize variable but always small amounts of catechin and proanthocyanidins, whereas ripe grains lack these compounds when tested by the vallin test (4). The ant25 gene might be involved in the regulation of anthocyanin and proanthocyanidin biosynthesis (5).
No images

Origin of mutant:

A sodium azide induced mutant in Secobra 18193 (NGB 13684) (1).

Mutational events:

ant25.264 (NGB 13706), 25.265 in Secobra 18193 (NGB 13684) (2); ant25.273 (NGB 24307), 25.274 (NGB 24308) in VP 116 (NGB 13691) (2); ant25.283 (NGB 24309) in Hege 550/75 (NGB 13692) (3); ant25.368 (NGB 24310) in Gimpel (PI 564720) (2); ant25.371 (NGB 24311) in Ca 184612 (2); ant25.420 (NGB 24312) in Kaya (3); ant25.461 (NGB 24313) in Pamela (3); ant25.477 (NGB24214) in Zenit (NGB 13686, PI 464447) (3).

Mutant used for description and seed stocks:

ant25.264 (NGB 13706) in Secobra 18193; ant25.371 (NGB 24311, GSHO 1638) in Ca 184612.


1. Jende-Strid, B. 1978. Mutation frequencies obtained after sodium azide treatments in different barley varieties. Barley Genet. Newsl. 8:55-57.
2. Jende-Strid, B. 1988. Coordinator's report: Anthocyanin genes. Stock list of ant mutants kept at the Carlsberg Laboratory. Barley Genet. Newsl. 18:74-79.
3. Jende-Strid, B. 1991. Coordinator's report: Anthocyanin genes. Barley Genet. Newsl. 20:87-88.
4. Jende-Strid, B. 1993. Genetic control of flavonoid biosynthesis in barley. Hereditas 119:187-204.
5. Tanner, G.J., K.N. Kristiansen, and B. Jende-Strid. 1992. Biosynthesis of proanthocyanidins (condensed tannins) in barley. Bulletin de Liaison - Groupe Polyphenols 16:170-173.


B. Jende-Strid. 1999. Barley Genet. Newsl. 29:96.