International Database for Barley Genes and Barley Genetic Stocks
BGS 592, Yellow head 2, yhd2
Stock number: BGS 592
Locus name: Yellow head 2
Locus symbol: yhd2
Previous nomenclature and gene symbolization:
Yellow head 2 = yh2 (2).
Monofactorial recessive (2).
Location is unknown; when yhd2.b is compared to Bowman, no polymorphisms were observed in the Bowman backcross-derived line for yhd2.b, BW921 (1).
The yhd2.b seedlings are slightly yellow-green compared to normal sibs. The lighter green color persists until after heading. The phenotype is similar to that expressed by some chlorina mutants. Plants of the Bowman backcross-derived line for yhd2.b, BW921, headed 3 to 5 days later than Bowman and were 5 to 10% shorter. Other morphological traits of BW921 including yield were not different from the range of values recorded for Bowman (3).
Origin of mutant:
A spontaneous mutant in Compana (PI 539111) (2).
yhd2.b (Golden Compana, GSHO 757) in Compana (PI 539111) (2, 3).
Mutant used for description and seed stocks:
yhd2.b (GSHO 757) in Compana; yhd2.b in Bowman (PI 483237)*6 (GSHO 2037): yhd2.b in Bowman*8 (BW921, NGB 22350).
1. Druka, A., J. Franckowiak, U. Lundqvist, N. Bonar, J. Alexander, K. Houston, S. Radovic, F. Shahinnia, V. Vendrarnin, M. Morgante, N. Stein, and R. Waugh. 2011. Genetic dissection of barley morphology and development. Plant Physiol. 155:617-627.
2. Eslick, R.F. (Unpublished).
3. Franckowiak, J.D. (Unpublished).
J.D. Franckowiak. 1998. Barley Genet. Newsl. 28:33.
J.D. Franckowiak. 2015. Barley Genet. Newsl. 45:215.