| 0 | GSHO 115 | nud1.a | Hordeum vulgare L. subsp. vulgare | Colorado, United States | NSGC |  | | 1994 | DONATED | 05/1994 | | | | | Genetic material | The lemma and palea do not adhere to the caryopsis and the grain will thresh free of the hull at maturity. The naked caryopsis trait is expressed in all environments. Inheritance: Monofactorial recessive. Located in chromosome 7HL{1L]; near the centromere, about 9.6 cM proximal from the lks2 (short awn 2) locus, and about 10.5 cM proximal from the dsp1 (dense spike 1) locus. Previous nomenclature and gene symbolization: Naked caryopsis=k. Naked caryopsis=s. Naked caryopsis=n. Hulless=h. Mutational events: nud1.a in Himalaya (CIho 1312); nud1.b in Haisa (Mut 4129), nud1.c (Mut 3041/62) in Ackermann's Donaria (PI 161974). Mutant used for description and seed stocks: nud1.a in Himalaya (GSHO 115), nud1.a from Sermo (CIho 7776) in Betzes (PI 129430)*7 (CIho 16559, GP 37), nud1.a from Sermo in Compana (CIho 5438)*7(CIho 16185, GP 41), nud1.a from Sermo in Decap (CIho 3351)*7 (CIho 16563, GP 45); nud1.a from Stamm (PI 194555) in Betzes*7 (CIho 16566, GP 48), nud1.a from Stamm in Compana* (CIho 16183, GP 50), nud1.a from Stamm*7 in Freja (CIho 7130)*7(CIho 16568, GP 52); nud1.a from Wolfe's Multiple Recessive Stock 1 in Bowman (PI 483237)*8 (GSHO 1847). | 1510623 | GSHO 115 |
| 1 | GSHO 1232 | dsp1.a | Hordeum vulgare L. subsp. vulgare | Colorado, United States | NSGC |  | | 1994 | DONATED | 05/1994 | | | | | Genetic material | Spike length is reduced because rachis internode length is reduced to about 2/3 normal. The reduction in rachis internode length caused by the dsp1.a and uzu1.a (uzu) alleles is similar and additive. In F2 progenies, the dsp1.a gene has pleiotropic effects on coleoptile length, culm length, and grain size. Inheritance: Monofactorial recessive. Located in chromosome 7HS [1S], about 10.5 cM distal from the nud (naked caryopsis) locus. Previous nomenclature and gene symbolization: Dense spike=l. Lax spike=L1. Short spike=e. Mutational events: dsp1.a in many cultivars of Oriental origin, often associated with the short awn gene. Mutant used for description and seed stocks: dsp1.a in Honen 6 (OUJ469, PI 307495, GSHO 1232); dsp1.a from DWS 1081 in Bowman (PI 483237)*7 (GSHO 1833). | 1513803 | GSHO 1232 |
| 2 | GSHO 196 | vrs1.a | Hordeum vulgare L. subsp. vulgare | Colorado, United States | NSGC |  | | 1994 | DONATED | 05/1994 | | | | | Genetic material | Alleles at this complex locus modify development of the lateral spikelets and the associated lemma awn. The vrs1.a allele (v gene) is present in most six-rowed cultivars and produces well-developed lateral spikelets. The lemma awn of lateral spikelets will vary from 3/4 to nearly as long as those of central spikelets, depending upon alleles present at other loci. The Vrs1.b allele (V gene, distichon) is present in many two-rowed cultivars and reduces lateral spikelets to sterile bracts with a rounded tip. The Vrs1.t allele (Vt gene, deficiens) causes an extreme reduction in the size of lateral spikelets. The lr or vlr (vrs1.c) gene in Nudihaxtoni and Bozu types will not recombine with the vrs1.a allele and produces phenotypes similar to the Vrs1.d allele (Vd gene) of Svanhals. The series of induced mutants in two-rowed barley called hex-v and Int-d mutants differ in the size of lateral spikelets, but they interact with the vrs1.a allele as incomplete dominants. Many heterozygous combinations with vrs1.a have a pointed tip on the lemma of sterile lateral spikelets. Alleles at the int-c (intermedium spike-c) locus modify lateral size in the presence of vrs1.a, Vrs1.b, and Vrs1.d, but not when Vrs1.t is present. Inheritance: A multiple allelic series, incomplete dominant allele interactions based on the size and shape of lateral spikelets. Located in chromosome 2HL, about 30.5 cM distal from the eog (elongated outer glume) locus. Previous nomenclature and gene symbolization:Two-row vs six-row=Zz. Six-row vs two-row=Aa. Two-row=D. Six-row vs two-row=Vv. Six-row vs two-row (distichon) vs two-row (deficiens)=A,as,af. Redcd lateral spikelet append. on the lemma=lr. Allelic series v,Vd,V,Vt. Hex. mut. Intermed. spike-d=Int-d. Reduced lat. spike. append. on lemma-vlr. Mut.events:vrs1.a ... vrs1.o(v1b) in New Golden.Mut. used for descr.:vrs1.a...(GSHO 1907). | 1510659 | GSHO 196 |
| 3 | GSHO 253 | mnd1.a | Hordeum vulgare L. subsp. vulgare | District of Columbia, United States | NSGC |  | | 1994 | DEVELOPED | | | | | | Genetic material | When grown in the field, plants are about 1/2 normal height with numerous tillers. Each tiller has 12 to 20 small leaves and a spike of 1/2 normal size. Additional tillers with 4 to 7 leaves may develop at the uppermost tiller nodes, but these secondary and tertiary culm branches develop late and have very small spikes. When grown in the greenhouse, plants are taller and later than normal sibs and each tiller may have 15 to 20 nodes. The rate of primordium initiation is normal, but their expansion into leaves is much more rapid. Inheritance: Monofactorial recessive. Location is unknown. Previous nomenclature and gene symbolization: Many noded dwarf=m. Mutational events: mnd1.a in Mesa. Mutant used for description and seed stocks: mnd1.a in Mesa (GSHO 253); mnd1.a in Bowman (PI 483237)*9 (GSHO 2038). | 1512491 | GSHO 253 |
| 4 | GSHO 29 | eog1.a | Hordeum vulgare L. subsp. vulgare | California, United States | NSGC |  | | 1994 | DEVELOPED | | | | | | Genetic material | A multiple allelic series exists at this locus which controls increased size of the outer glumes (glumes) of the spikelet. Glume width varies from 2.5 to 4.0 mm depending on genetic background and specific allele. Glume awn length varies from awnless to nearly as long as the lemma awn (92 mm) depending on the eog allele present and genes at other loci, but some confusion has occurred regarding alleles at the eog locus and expression of other glume characteristics. The size of the glume may range from less than twice normal width in CIho 14955 to lemma-like glumes in Triple Bearded Mariout. Inheritance: Monofactorial recessive. Located in chromosome 2HL, about 30.5 cM proximal from the vrs1 (six-rowed spike 1) locus. Previous nomenclature and gene symboliation: Extended outer glumes=e. Wide glumes=w. Macrolepis=lep-e(lep-a). Long outer glume=log. Elongated outer glume=e. Mutational events: eog1.a in Triple Bearded Mariout (CIho 2523); lep-e.1, -e.2 in Gull (CIho 1145), -e.3, -e.4, -e.5, -e.6, -e.7, -e.8, -e.9, -e.10, -e.11, -e.12, -e.13, -e.29, -e.34, -e.42, -e.45, -e.49, -e.50, -e.51, -e.52, -e.53, -e.54 in Bonus (PI 189763), -e.14, -e.15, -e.16, -e.17, -e.18, -e.19, -e.20, -e.21, -e.22, -e.23, -e.24, -e.25, -e.26, -e.27, -e.28, -e.30, -e.31, -e.32, -e.33, -e.38 in Foma (CIho 11333), -e.35, -e.36, -e.37, -e.39, -e.40, -e.41, -e.42, -e.43, -e.44, -e.46, -e.47, -e.48 in Kristina; eog 1.b in PI 173567 (G 8); eog1.c in CIho 14955; eog1.d (Mut 3447/64) in Proctor (PI 280420). Mutant used for description and seed stocks: eog1.a in Triple Bearded mariout (GSHO 29); lep-e.1 in Gull (GSHO 960); eog1.a in Bowman (PI 483237)*7(GSHO 1891); eog1.c from CIho 14955 in Bowman*7 (GSHO 1892). | 1510696 | GSHO 29 |