II. 20 Diallelic tests of anthocyanin-deficient mutants.
B. Jende-Strid, Department of Physiology, Carlsberg Laboratory, G1. Carlsberg Vej 10, DK-2500 Copenhagen Valby, Denmark, and U. Lundqvist, The Swedish Seed Association, S-268 00 Svalöv, Sweden.
The collection of radiation and chemical induced mutants kept at the Swedish Seed Association, Svalöv, comprise at present 42 anthocyanin-free or anthocyanin-poor and 11 anthocyanin-rich mutants.
In 1969 Gustafsson, Hagberg, Lundqvist and Persson proposed the gene symbol rub for genes controlling anthocyanin pigmentation. Subsequently the International Committee for assigning barley gene symbols has agreed on the 3rd International Barley Genetics Symposium, Munich 1975, that gene symbols starting with an r should be reserved for genes controlling resistance towards diseases. We therefore propose the gene symbol ant to be used for genes affecting the anthocyanin, anthocyanidin and proanthocyanidin content in barley. In agreement with the Committee's proposal, arabic figures are used for the loci. The alleles are designated with the arabic numbers the mutants have received upon isolation. We have started to cross these mutants to determine the number of genes involved. Thirty-one of the mutants could be assigned to 14 different loci. These are listed in Table 1 together with the phenotypes characteristic for the individual loci. The mutants have been isolated in the following varieties:
Bonus: ant 1-1, ant 1-2, ant 1-4, ant 3-5, ant 3-8, ant 5-9, ant 4-40
Foma: ant 4-11, ant 7-12, ant 13-13, ant 2-15, ant 4-16, ant 4-17, ant 2-20, ant 8-21, ant 2-23, ant 5-24, ant 2-25, ant 2-26, ant 2-27, ant 4-28, ant 9-29, ant 10-30, ant 4-31, ant 6-33, ant 11-34, ant 12-35, ant 14-36, ant 4-37
Kristina: ant 6-38, ant 3-39
The tests are continued.
Table 1. Results of diallelic tests among anthocyanin-deficient mutants.
Reference:
Gustafsson, A., Hagberg, A., Lundqvist, U. and Persson, G. 1969. A proposed system of symbols for the collection of barley mutants at Svalöv. Hereditas 62, 409-414.
