S.E. Ullrich reported in his coordinator's report of chromosome 1 in BGN 17:105-107 that the Japanese recessive glossy leaf gene gl5, which is an X-ray induced mutant, is located to chromosome 1. The phenotypic character of the wax-coating for that gene is: spike ++; leaf sheath ++, and leaf blade - (- = wax coating absent; ++ = normal). There exists in the Swedish eceriferum collection 25 leaf blade mutant loci. All these 25 mutants were crossed as female to gl5 (cer-j, cer-p, cer-xa, cer-ya, cer-yb, cer-ye, cer-yf, cer-yi, cer-yj, cer-yo, cer-yp, cer-yq, cer-ys, cer-yu, cer-za, cer-zd, cer-ze, cer-zf, cer-zg, cer-zh, cer-zj, cer-zp, cer-zq, cer-zy, and cer-zz). The three F₁ plants from the cross to cer-ze had glossy leaf blade, and all the 140 F₂ plants showed this character.

Consequently gl5is allelic at the cer-ze locus. As gl5 has been localized to chromosome 1 and cer-ze has not been localized to any chromosome until now, cer-ze can also be designated to chromosome 1.

In 1988 I received from Dr. J. D. Franckowiak, North Dakota State University, Fargo, USA, a "glossy spike" line from R. I. Wolfe's Multiple Dominant Marker Stock. It contains a dominant gene for glossy spike (personal communication). By combining this gene with two mutant alleles of the Swedish eceriferum locus Cer-yy, the results in the F₂ generation 1990 showed that this dominant gene is an allele of Cer-yy. Probably Cer-yy is allelic to Gle-1 on chromosome 5.

References:

Lundqvist, U., and A. Lundqvist. 1988. Mutagen specificity in barley for 1580 eceriferum mutants localized to 79 loci Hereditac 108:1-12.

Ullrich, S. E. 1987. Coordinator's report: Chromosome 1. BGN 17:105-107.

Wettstein-Knowles, P. von. 1989. Facets of the barley genome. In Science for Plant Breeding, Proc. XII Congress of Eucarpia, Paul Parey, Berlin and Hamburg.