| 0 | GSHO 536 | lbi3.c | Hordeum vulgare L. subsp. vulgare | Ontario, Canada | NSGC |  | | 1995 | DEVELOPED | | | | | | Genetic material | Mutant plants in the cultivar Montcalm have a marked elongation and weakness of the basal rachis internode of the spike. This region may be 10 to 13 cm long in some tillers. The spike hangs vertically downward from the collar on emergence from the sheath and is often broken off in this region by the wind. When not broken off, spikes have normal fertility, contain well-filled grain, and show normal maturity. Expression of the lbi3.c allele in the Bowman-derived line is limited to a slight elongation of the basal rachis internode and a slightly lax spike. Inheritance: Monofactorial recessive. Located in chromosome 7HL [1L], over 20.0 cM distal from the nud (naked caryopsis) locus. Precivous nomenclature and gene symbolization: Long basal internode 3=lb3. Mutational events: lbi3.c (Alb Acc 291), lbi3.d (Alb Acc 292), lbi3.e (Alb Acc 293), lbi3.m (Alb Acc 290) in Montcalm. Mutant used for description and seed stocks: lbi3.c in Montcalm (GSHO 536); lbi3.c in Bowman (PI 483227)*7 (GSHO 1840). | 1512187 | GSHO 536 |
| 1 | GSHO 1065 | als1.a | Hordeum vulgare L. subsp. vulgare | Ontario, Canada | NSGC |  | | 1994 | DEVELOPED | | | | | | Genetic material | Lateral spikelets at the base of the spike fail to develop or are partially developed. Tillers are large, coarse, and stiff, and only 1 or 2 tillers are produced in the six-rowed stock. The plant resembles the uniculm mutant. Plants of the Bowman backcross-derived line commonly produce 3 to 5 tillers. Inheritance: Monofactorial recessive. Located in chromosome 3HL, about 31.2 cM distal from the uzu (uzu) locus, and about 39.7 cM proximal from the cur2 (curly 2) locus. Previous nomenclature and gene symbolization: None. Mutational events: als1.a in Montcalm (Alb Acc 281). Mutant used for description and seed stocks: als1.a in Montcalm (GSHO 1065); als1.a in Bowman (PI 483237)*7 (GSHO 1990). | 1513839 | GSHO 1065 |
| 2 | GSHO 1140 | yst1.a | Hordeum vulgare L. subsp. vulgare | Ontario, Canada | NSGC |  | | 1994 | DEVELOPED | | | | | | Genetic material | Longitudinal yellow stripes appear on seedling leaves and persist until the preripening stage. In some crosses and under certain environmental conditions, the most heavily striped F2 plants fail to reach maturity. There is no evidence for a cytoplasmic association in the inheritance patterns. Expression of the yst1.a allele in the Bowman backcross-derived line is reduced to very narrow streaks that occur infrequently. Inheritance: Monofactorial recessive. Located in chromosome 3HS, about 2.9 cM proximal from the zeb1 (zebra stripe 1) locus, and about 7.6 cM proximal from the uzu (uzu) locus. Previous nomenclature and gene symbolization: Yellow stripe=ys. Yellow streak=yst. Mutational events: yst1.a in Gateway. Mutant used for description and seed stocks: yst1.a in Gateway (GSHO 1140); yst1.a in Bowman (PI 483237)*7 (GSHO 1959). | 1514332 | GSHO 1140 |
| 3 | GSHO 1279 | zeb1.a | Hordeum vulgare L. subsp. vulgare | Minnesota, United States | NSGC |  | | 1994 | DEVELOPED | | | | | | Genetic material | Seedlings may have pale green to yellow bands across the leaves when germinated under cold conditions in the field. Cold room studies showed that development of a mutant phenotype in seedlings could be induced by 10 to 15 days of cold treatment (0 to 1 C) if initiated within one day after wetting of the seed. Alternating cold and warm temperatures in the field induced diagnostic symptoms. Inheritance: Monofactorial recessive. Located in chromosome 3HL, about 7.0 cM proximal from the uzu (uzu) locus. Previous nomenclature and gene symbolization: Zebra stripe=zb. Mutational events: zeb1.a in Mars (C3-1). Mutant used for description and seed stocks: zeb1.a in Mars (GSHO 1279); zeb1.a in Bowman (PI 483237)*3 (GSHO 1964). | 1513696 | GSHO 1279 |
| 4 | GSHO 159 | wst1.a | Hordeum vulgare L. subsp. vulgare | Colorado, United States | NSGC |  | | 1994 | DONATED | 05/1994 | | | | | Genetic material | Very narrow white stripes are present in the leaves from the seedling stage until near maturity. Plants have nearly normal vigor. The size of the white sectors is variable from mutant to mutant, plant to plant, and leaf to leaf. All affected plants may produce albino seedlings among their selfed progeny with reported frequencies between 1.0 and 25.6%. Albino seedlings have not been observed when wst1 plants are used as the male parent in crosses. Caldecott's streak has wider and larger white sectors and produces a higher frequency of albino seedlings. Inheritance: Monofactorial recessive. Located in chromosome 3HL, very close to the uzu (uzu) locus. Previous nomenclature and gene symbolization: White stripe=wst. Stripe=st. White streak 3=wst3. Mutational events: wst1.a in an unknown cultivar (USDA 163, CIho 11767); wst1.c (OUL074, GSHO 569) in Akashinriki (PI 467400, OUJ659); wst1.e in Himalaya (GSHO 278, Caldecott's streak); wst1.f (Grandpa fine stripe) in an unknown cultivar (CIho6856, GSHO 854), wst1.g in CIho 6758 (GSHO 314); wst1.h in CIho 11766 (GSHO 797); wst1.i in Moravian (PI 537135). Mutant used for description and seed stocks: wst1.a in an unknown cultivar (GSHO 159); wst1.a in Bowman (PI 483237)*6 (GSHO 1966); wst1.c plus uzu1.b in Bowman*8 (GSHO 1967). | 1510718 | GSHO 159 |
| 5 | GSHO 572 | lbi2.b | Hordeum vulgare L. subsp. vulgare | Ontario, Canada | NSGC |  | | 1994 | DEVELOPED | | | | | | Genetic material | Mutant plants in the cultivar Montcalm have a marked elongation and weakness of the basal rachis internode of the spike. This region may be 10 to 13 cm long in some tillers. The spike hangs vertically downward from the collar on emergence from the sheath and is often broken off in this region by the wind. Even when not broken off, spikes have a high degree of sterility and contain poorly filled grain. Plants show delayed maturity. The ert-i mutants in Bonus have an erect, semicompact (rachis internode length ranging from 2.3 to 2.9 mm) spike, an elongated (2 to 4 cm) basal rachis internode, and reduced plant height (3/4 normal). Removal of modifiers in the Montcalm and Bonus mutant stocks by backcrossing resulted in Bowman backcross- derived lines having similar phenotypes. Inheritance: Monofactorial recessive. Located in chromosome 4HL, less than 12.8 cM proximal from the Kap (hooded lemma) locus, about 2.4 cM proximal from the Kap locus, and about 18.5 cM proximal from the glf1 (glossy leaf 1) locus. Previous nomenclature and gene symbolization: Long basal rachis internode 2=lb2. Erectoides-i=ert-i. Mutational events: lbi2.b in Montcalm (Alb Acc 1028); ert-i.27, -i.53 in Bonus (PI 189763); ert-i.126 in Bonus. Mutant used for description and seed stocks: lbi2.b in Montcalm (GSHO 572); ert-i.27 in Bonus (GSHO 482); lbi2.b in Bowman (PI 483237)*7 (GSHO 2009); ert-i.27 in Bowman*7 (GSHO 2008). | 1512295 | GSHO 572 |
| 6 | GSHO 775 | vrs4.k | Hordeum vulgare L. subsp. vulgare | Japan | | | Historic | 1994 | DEVELOPED | | | | | | Genetic material | Alleles at this locus enhance the development of lateral spikelets and formation of additonal spikelets to various degrees. The int-e mutants, which were isolated in two-rowed cultivars, have enlarged lateral spikelets that may set seed in the upper two-thirds of the spike. Kernels in lateral spikelets are smaller than those from central spikelets in int-e mutants. The rachilla may be deformed by partial formation of an extra spikelet. The awn size on lateral spikelets range from a pointed apex to 3/4 normal length. The mul1.a and vrs4.k alleles, which were isolated in six-rowed cultivars, may produce numerous extra spikelets at the base of the lateral spikelets and on the rachilla. Phenotypic differences among alleles are retained in the Bowman backcross-derived lines. Inheritance: Monofactorial recessive. Located in chromosome 3HL, about 27.5 cM distal from the uzu (uzu) locus. Previous nomenclature and gene symbolization: Multiflorus=mul. Intermedium spike-e=int-e. Six-rowed spike 4=v4. Mutational events: mul1.a (Alb Acc 321, GSHO 561) in Montcalm (CIho 7149); vrs4.k (Gamma III 3B, MFB-2) in MFB 104 (PI 232921), vrs4.l (Xc 41.5, Piro-2) in Piroline (PI 262210); vrs4.m (X17 2497, Piro-7) in Piroline; int-e.4 (trans) in Bonus (PI 189763), -e.65 in Bonus; int-e.72, -e.87 in Bonus, -e.89, -e.90, -e.91, -e.92, -e.101 in Hege. Mutant used for description and seed stocks: vrs4.k in Gamma III 3B (GSHO 775); int-e.58 in Kristina (GSHO 1766); mul1.a in Bowman (PI 483237)*6 (GSHO 1985); vrs4.k in Bowman*6 (GSHO 1986); int-e.58 in Bowman*6 (GSHO 1987). | 1513925 | GSHO 775 |