International Database for Barley Genes and Barley Genetic Stocks

BGS 56, White streak 4, wst4

BGN  44:61
Stock number: BGS 56
Locus name: White streak 4
Locus symbol: wst4

Previous nomenclature and gene symbolization:



Monofactorial recessive (4).
Located in chromosome 2HL (3, 4, 5), wst4.d is about 6.5 cM distal from the eog1 (elongated outer glume 1) locus (4); wst4.d is associated with SNP markers 1_0084 to 2_1258 (positions 76.05 to 114.96 cM) in 2H bins 06 to 08 of the Bowman backcross-derived line BW913 (1), likely in 2H bin 07.


Mutants grown at low temperatures exhibit numerous, wide, chlorotic (white) streaks on developing leaves. If temperatures are continuously low, plants appear highly chlorotic. As temperature rises, the white streaks gradually disappear. Exposure to 3°C for two weeks after sowing is sufficient to induce distinct streaks in the first and second leaves (4). Compared to Bowman, plants of the Bowman backcross-derived line for wst4.d, BW913, were morphologically similar, but they headed about four days later. Kernels of BW913 weighed 5 to 10% less than those of Bowman, but grain yields were equal to or slightly higher (2).

Origin of mutant:

A spontaneous mutant in Kanyo 7 (OUK651) (4).

Mutational events:

wst4.d (OUL068, GSHO 568) in Kanyo 7 (OUK651) (4).

Mutant used for description and seed stocks:

wst4.d (GSHO 568, OUL068) in Kanyo 7; wst4.d in Bowman (PI 483237)*4 (GSHO 1905); wst4.d in Bowman*7 (BW913, NGB 22344).


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 Franckowiak, J.D. (Unpublished).
3. Singh, R.J., and T. Tsuchiya. 1974. Further information on telotrisomic analysis in barley. Barley Genet. Newsl. 4:66-69.
4. Takahashi, R., and I. Moriya. 1969. Inheritance and linkage studies in barley. IV. Linkages of four variegated mutants. Ber. Ohara Inst. landw. Biol., Okayama Univ. 15:35-46.
5. Tsuchiya, T. 1972. Cytogenetics of telotrisomics in barley. Barley Genet. Newsl. 2:93-98.


T. Tsuchiya and T.E. Haus. 1971. Barley Genet. Newsl.1:116.


J.D. Franckowiak and T. Konishi. 1997. Barley Genet. Newsl. 26:91.
J.D. Franckowiak. 2014. Barley Genet. Newsl. 44:61.