BGS 605, Proanthocyanidin-free 25, ant25

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

Previous nomenclature and symbolization:

None.
Inheritance:
Monofactorial recessive (2, 3).
Location is unknown.
Description:
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 wildtype 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).
Origin of mutant:
A sodium azide induced mutant in Secobra 18193 (NGB 13684) (1).
Mutational events:
ant25.264, 25.265 in Secobra 18193 (2); ant25.273, 25.274 in VP 116 (NGB 13691) (2); ant25.283 in Hege 550/75 (NGB 13692) (3); ant25.368 in Gimpel (PI 564720) (2); ant25.371 in Ca 184612 (2); ant25.420 in Kaya (3); ant25.461 in Pamela (3); ant25.477 in Zenit (PI 464447, NGB 13686) (3).
Mutant used for description and seed stock:
ant25.264 in Secobra 18193 (NGB 13706); ant25.371 in Ca 184612 (GSHO 1638).
References:
  1. Jende-Strid, B. 1978. Mutation frequencies obtained after sodium azide treatments in different barley varieties. BGN 8:55-57.
  2. Jende-Strid, B. 1988. Coordinator's report: Anthocyanin genes. Stock list of ant mutants kept at the Carlsberg Laboratory. BGN 18:74-79.
  3. Jende-Strid, B. 1991. Coordinator's report: Anthocyanin genes. BGN 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.

Prepared:

B. Jende-Strid. 1998. BGN 29:94

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