International Database for Barley Genes and Barley Genetic Stocks
BGS 362, Male sterile genetic 6, msg6
Stock number: BGS 362
Locus name: Male sterile genetic 6
Locus symbol: msg6
Previous nomenclature and gene symbolization:
Male sterile 6 = ms6 (6).
Inheritance:
Monofactorial recessive (6).
Located in chromosome 6HS (5); msg6.cf is near the centromere (3, 8); msg6.cf is about 1.0 cM distal from the rob1 (orange lemma 1) locus (4). msg6.cf is associated with SNP markers 1_0061 to 1_0040 (positions 70.15 to 107.26 cM) in 6H bins 05 to 07 in a heterozygous plant from Bowman backcross-derived line BW589 (2), likely in 6H bin 06.
Description:
Selfing - none, but occasionally a few selfed seeds occur (4).
Outcrossing - complete female fertility (4).
Stamens - equal in size to normal anthers (4); stomium present, filament elongation (9).
Pollen - nearly normal stained in both field and greenhouse plants, most grains appear normal (9). The msg6.cf pollen grains are non-functional because aperture development is abnormal (1,2).
Cytology - normal development and differentiation of anthers (9, 10).
No images
Origin of mutant:
A spontaneous mutant in Heines Hanna (PI 539131) (6, 7).
Mutational events:
msg6.cf (MSS054, GSHO 2405) in Heines Hanna (PI 539131) (6,7).
Mutant used for description and seed stocks:
msg6.cf (GSHO 2405) in Heines Hanna; msg6.cf in Bowman (PI 483237)*7 (GSHO 2078, BW589, NGB 23449).
References:
1. Ahokas, H. 1975. Male sterile mutants of barley. I. Inaperturate pollen of the msg6cf mutant. Ann. Bot. Fenn. 12:17-21.
2. Eslick, R.F., R.T. Ramage, and D.R. Clark. 1974. Two genetic male steriles, msg6 and msg,,bk, assigned to chromosome 6. Barley Genet. Newsl. 4:11-15.
3. Falk, D.E. 1994. Creation of a marked telo 6S trisomic for chromosome 6. Barley Genet. Newsl. 23:32.
4. Hockett, E.A., and R.F. Eslick. 1968. Genetic male sterility in barley. I. Nonallelic genes. Crop Sci. 8:218-220.
5. Hockett, E.A., and D.A. Reid. 1981. Spring and winter genetic male-sterile barley stocks. Crop Sci. 21:655-659.
6. Lehmann, L., and P. Hagberg. 1978. Linkage studies of msg6 using four translocations involving chromosomes 5 and 6. Barley Genet. Newsl. 8:73-74.
7. Roath, W.W., and E.A. Hockett. 1971. Genetic male sterility in barley. III. Pollen and anther characteristics. Crop Sci. 11:200-203.
8. 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. 1:178-179.
Revised:
J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:310.
J.D. Franckowiak. 2015. Barley Genet. Newsl. 45:135-136.
