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).

Inheritance:

Monofactorial recessive (6).
Located in chromosome 5HL (2); msg7.cg is about 5.5 cM from the raw1 (smooth awn 1) locus (2). the plant of the Bowman backcross-derived line for msg7.cg stock, BW590, evaluated for SNP markers did not have any deviant markers in 5H from those of Bowman (2).

Description:

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:

msg7.cg (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:

msg7.cg (GSHO 2406) in Dekap; msg7.cg in Bowman (PI 483237)*7 (GSHO 2109, BW590, NGB 24811).

References:

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.

Prepared:

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

Revised:

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


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