International Database for Barley Genes and Barley Genetic Stocks
BGS 344, Variegated 2, var2
Stock number: BGS 344
Locus name: Variegated 2
Locus symbol: var2
Previous nomenclature and gene symbolization:
Variegated = va2 (2, 3).
Monofactorial recessive (3).
Located in chromosome 5HL (2): var2.b is over 29.8 cM from the srh1 (short rachilla hair 1) locus (2).
Vertical white streaks of variable width and number are observed in leaf blades. White streaks are observed as leaves of new tiller emerge. The streaks often persist until maturity and are similar to those associated with the wst7 (white streak 7) mutant. Expression of var2 is variable from plant to plant and can be poor in certain genetic and climatic environments (1).
Origin of mutant:
Probably an X-ray induced mutant in Montcalm (CIho 7149) (3). (The stock line was obtained from the R.F. Eslick collection of barley mutants held at Montana State University.)
var2.b (Mont. var2, GSHO 2496) in Montcalm (CIho 7149) (2).
Mutant used for description and seed stocks:
var2.b (GSHO 2496) in Montcalm; var2.b in Bowman (PI 483237)*2 (GSHO 2362); var2.b in Bowman*4 (BW887, NGB 22320).
1. Franckowiak, J.D. (Unpublished).
2. Walker, G.W.R., J. Dietrich, R. Miller, and K.J. Kasha. 1963. Recent barley mutants and their linkages II. Genetic data for further mutants. Can. J. Genet. Cytol. 5:200-219.
3. Walker, G.W., K. Kasha, and R.A. Miller. 1958. Recombination studies in barley. Proc. Genet. Soc. Can. 3:41-43.
J.D. Franckowiak. 2002. Barley Genet. Newsl. 32:104.