International Database for Barley Genes and Barley Genetic Stocks
BGS 525, Eceriferum-yl, cer-yl
Stock number: BGS 525
Locus name: Eceriferum-yl
Locus symbol: cer-yl
Previous nomenclature and gene symbolization:
Monofactorial recessive (4).
Located in chromosome 4HL (1); cer-yl.187 is associated with SNP markers 2_0411 to 1_0062 (positions 52.11 to 91.93 cM) in 4H bins 04 to 06 of the Bowman backcross-derived line BW143 (1).
Surface wax coating on the spike, the leaf sheath, and the stem appears absent (wax code - - ++) (4). The original mutant stock produces weak plants (about 3/4 normal height) with a high level of sterility (2). Plants in the Bowman backcross-derived line are semidwarf with waxy nodes, coiled peduncles, globose shaped seeds, and poorly attached hull. Reduced seed set can be caused by adverse environmental conditions (2). The BW143 plants headed 1 to 2 days later than Bowman and were shorter, 67 v. 89 cm. Peduncles and leaf blades were about 2/3 normal length. Kernels were thinner and weighed less, 4.4 vs. 5.9 mg and grain yields were 1/4 to 1/3 those of Bowman (2). Although not as extreme, the phenotypic characteristics of BW143 are similar to those of the Bowman backcross-derived lines for cer-zv.268 (BW177) and cer-ym.753 (BW144). Since all three loci retain donor parent markers in the same region of 4HL, they might have mutations in the same gene (1, 2). However, allelism tests demonstrated that the mutants at these loci are not alleles (3).
Origin of mutant:
A propane disulfonic acid diethyl ester induced mutant in Bonus (NGB14657, PI 189763) (3).
cer-yl.187 (NGB 111073, GSHO 1545), -yl.188 (NGB 111074) in Bonus (NGB 14657, PI 189763) (2); cer-yl.407 (NGB 111295) in Foma (NGB 14659, CIho 11333), -yl.821 (NGB 111709) in Bonus (5).
Mutant used for description and seed stocks:
cer-yl.187 (NGB 111073, GSHO 1545, in Bonus; cer-yl.187 in Bowman (PI 483237)*6 (GSHO 2216); cer-yl.187 in Bowman*7 (BW143, NGB 20549). GSHO 1545 and GSHO 2216 do not show the phenotype of cer-yl.187, but rather the phenotype of cer-zv.268 or cer-ym.753. NGB 111073 and NGB 20549 have the correct phenotypes (3).
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. Franckowiak, J.D. (Unpublished).
3. Lundqvist, U. (Unpublished).
4. Lundqvist, U., and D. von Wettstein. 1977. Stock list for the eceriferum mutants IV. Barley Genet. Newsl. :92-96.
5. Lundqvist, U., and D. von Wettstein. 1982. Stock list for the eceriferum mutants VI. Barley Genet. Newsl. 12:169-172.
U. Lundqvist and J.D. Franckowiak. 1997. Barley Genet. Newsl. 26:452.
U. Lundqvist and J.D. Franckowiak. 2016. Barley Genet. Newsl. 46:116-117.
U. Lundqvist and J.D. Franckowiak. 2017. Barley Genet. Newsl. 47:171-172.