International Database for Barley Genes and Barley Genetic Stocks

BGS 363, Male sterile genetic 7, msg7

BGN  45:137 Export to PDF
Stock number: BGS 363
Locus name: Male sterile genetic 7
Locus symbol: msg7

Previous nomenclature and gene symbolization:

Male sterile 7 = ms7 (6).


Monofactorial recessive (6).
Located in chromosome 5HL (2); is about 5.5 cM from the raw1 (smooth awn 1) locus (2). the plant of the Bowman backcross-derived line for stock, BW590, evaluated for SNP markers did not have any deviant markers in 5H from those of Bowman (2).


Selfing - none (6).
Outcrossing - complete female fertility (6).
Stamens - anthers much smaller than fertile sibs, no stomium or filament elongation (8).
Pollen - microspores degenerate before the free microspore stage, non-staining, no free grains (8, 9).
Cytology - normal development and differentiation of anthers until completion of meiosis, but degeneration of tapetal tissue at the tetrad stage (9).
No images

Origin of mutant:

A spontaneous mutant in Dekap (CIho 3351) (5).

Mutational events: (MSS055, GSHO 2406) in Dekap (CIho 3351) (3, 5); msg7.ah (MSS099) in HB 421/78 (CIho 13641) (3, 7); msg7.fx (MSS425) in Proctor (PI 269153) (4, 5).

Mutant used for description and seed stocks: (GSHO 2406) in Dekap; in Bowman (PI 483237)*7 (GSHO 2109, BW590, NGB 24811).


1. Druka, A., J. Franckowiak, U. Lundqvist, N. Bonar, J. Alexander, K. Houston, S. Radovic, F. Shahinnia, V. Vendramin, M. Morgante, N. Stein, and R. Waugh. 2011. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.

2. Franckowiak, J.D. 1991. Association of male sterility genes with a specific chromosome using multiple marker stocks. Barley Genet. Newsl. 20:31-36.

3. Hockett, E.A. 1976. The genetic male sterile collection. Barley Genet. Newsl. 6:108.

4. Hockett, E.A. 1984. Coordinator's report. The genetic male sterile barley collection. Barley Genet. Newsl.14:70-75.

5. Hockett, E.A. 1991. The identification of eight new loci and allelism of 14 additional mutants. Barley Genet. Newsl. 20:37-40.

6. Hockett, E.A., and R.F. Eslick. 1968. Genetic male sterility in barley. I. Nonallelic genes. Crop Sci. 8:218-220.

7. Hockett, E.A., and D.A. Reid. 1981. Spring and winter genetic male-sterile barley stocks. Crop Sci. 21:655-659.

8. Roath, W.W., and E.A. Hockett. 1971. Genetic male sterility in barley. III. Pollen and anther characteristics. Crop Sci. 11:200-203.

9. Roath, W.W., and E.A. Hockett. 1971. Pollen development in genetic male-sterile barley. p. 308-315. In R.A. Nilan (ed.) Barley Genetics II. Proc. Second Int. Barley Genet. Symp., Pullman, WA, 1969. Washington State Univ. Press, Pullman.


E.A. Hockett. 1971. Barley Genet. Newsl. 1:179-180.


J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:311.
J.D. Franckowiak. 2015. Barley Genet. Newsl. 45:137-138.