IV. 19. Coordinators Report: The genetic male sterile barley collection.
E.A. Hockett, USDA-ARS, Plant and Soil Science Department, Montana State University, Bozeman, Montana 59717, U.S.A.
The mutant msg,,dz was found to be allelic with the previously numbered locus msg25r since msg25r and msg25dz gave a ratio of 37:32 fertile : sterile plants (P 50% for fit to 1:1) in crosses of male sterile and heterozygous male sterile plants. The selfing and segregation behavior of msg25dz was reported in 1979 (1) where it averaged 2.6% selfing in two years of bagging. This is slightly higher than the 0.7% selfing reported for msg25r in 1971 (2). Klages msg25dz is the mutant used in setting up the male sterile facilitated recurrent selection population for 2-rowed malting quality (3).
References:
Hoekett, E.A. 1979. The genetic male sterile barley collection. Barley Genet. Newsl. 9:124-128.
Hockett, E.A, and R.F. Eslick. 1971. Genetic male sterile genes useful in hybrid barley production. pp. 298-307. In R.A. Nilan (ed.) Barley Genet. II. Proc. 2nd Int. Barley Genet. Symp. Pullman, WA. 6-11 July 1969. Washington State Univ. Press, Pullman.
Hockett, E.A. and C.F. McGuire. 1983. Male sterile facilitated recurrent selection for malting quality. Barley Newsl. 27:67.