International Database for Barley Genes and Barley Genetic Stocks

BGS 471, Male sterile genetic 34, msg34

BGN  45:181
Stock number: BGS 471
Locus name: Male sterile genetic 34
Locus symbol: msg34

Previous nomenclature and gene symbolization:

Male sterile av = msg,,av (4).
Male sterile = 63msy1 (4).


Monofactorial recessive (4, 7, 8).
Located in chromosome 6HS (2, 3); msg34.av is associated with SNP markers 1_0775 to 1_0744 (positions 26.42 to 39.34 cM) in 1H bins 03 to 05 in a homozygous plant from Bowman backcross-derived line BW570 (1). Previously recombination between msg34.av and the rob1 (orange lemma 1) locus was not observed (2).


Selfing - none (4).
Outcrossing - complete female fertility (4).
Stamens - anthers rudimentary, with no stomium or filament elongation (4).
Heterozygotes show reduced fertility (75 to 85% seed set), and male sterile plants always have a Long glume awn 1 (Lga1) trait from Paragon. Thus, the msg34.av mutant may involve a translocation between chromosomes 6HS and 7HS (3).
No images

Origin of mutant:

A spontaneous mutant in Paragon (CIho 13649) (8).

Mutational events:

msg34.av (MSS314, GSHO 2386) in Paragon (CIho 13649) (5, 6).

Mutant used for description and seed stocks:

msg34.av (GSHO 2386) in Paragon; msg34.av in Bowman (PI 483237)*7 (GSHO 2070, BW570, NGB 24134).


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. Franckowiak, J.D. (Unpublished).

4. Hockett, E.A. 1972. Coordinator's report on the genetic male sterile barley collection. Barley Genet. Newsl. 2:139-144.

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

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

7. Ramage, R.T., and R.F. Eslick. 1975. Translocation linkage tests – T2-7a x male sterile genes. Barley Genet. Newsl. 5:46-48.

8. Sharma, R.K. 1970. Studies of sterility mutants in spring barley (Hordeum vulgare L.). Ph.D. Thesis. Univ. of Guelph, Ontario.


E.A. Hockett. 1986. Barley Genet. Newsl. 16:54.


E.A. Hockett. 1991. Barley Genet. Newsl. 20:101.
J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:418.
J.D. Franckowiak. 2015. Barley Genet. Newsl. 45:181-182.