There are several applications for BGS numbers for new mutant stocks. Some of them have been processed and given BGS numbers (Table 1, p. 108-109) and the descriptions are published in this issue. However, some others were not given BGS numbers and are pending publication in BGN, because of various reasons.
If the gene(s) of the new mutant(s) was found to be allelic to a known gene, BGS number(s) will not be given and the stock(s) is not required to be sent to the Stock Center in Fort Collins, Colorado, U.S.A. The researcher(s) who found the mutant(s) is asked to maintain the stock(s). Information on those stocks will be published in BGN.
Other aspects on the preparation of a description of a genetic stock are:
1. A number of mutants were studied and reported in BGN and other journals, yet the description has not been published in BGN. It is important to publish the description in BGN.
2. Revision of a description is also equally important. The author of the original description is asked to prepare a revised version or sometimes a corrected version of the description of genetic stocks.
VI. 1. Corrections in BGS numbers previously assigned.
In the previous issues some BGS numbers were given twice by mistake. Corrections are made as follows:
A completely revised list of genetic stocks in the Stock Center at Fort Collins, Colorado, U.S.A. is reported in this issue of BGN, p. 161-177.
Table 1. List of genetic stocks for which description
is published in BGN, Vols. 8 through 13.
BGS 0176 Ovaryless (male) ov1
Previous nomenclature and symbolization: Kmut 21b ovl (2,3)
Inheritance: Recessive or very weak codominance (3) located on chromosome 4 (1,5)
Description: The phenotype of the homozygous recessive plant shows nonfunctional female reproductive parts but anthers are well developed and fully pollen fertile. Spikes are nearly normal length but are awnless and completely sterile. Due to the lack of a midvein and rapid elongation, the second and later leaves droop noticeably. Leaf length slightly differs from normal although the leaves are somewhat narrower. The phenotype of the heterozygous plant shows a midvein present in the basal half of the leaf but disappearing toward the tip. This results in some drooping effect, but less apparent than in the homozygous plants. Leaf length and width is nearly normal and the plant is fertile (2,3).
Origin of mutant: Induced by Gamma ray in cultivar Kanto Bansei Gall, a two-rowed, spring type malting barley variety (2,3).
Mutational events: ovl in cultivar Kanto Bansei Gall (2).
Mutant used for description and seed stock: ovl in cultivar Kanto Bansei Gall. The original stock carried both ovl and a reciprocal translocation (T4-6) (3,4). In this stock, for ovl, the translocation was eliminated.
References:
1. Seip, L. and T. Tsuchiya. 1979. BGN 9:89-90.
2. Tsuchiya, T. 1962. Seiken Ziho (Rep. Kihara Inst. Biol. Res.). 14:21-34.
3. Tsuchiya, T. 1969. Induced mutations in plants. :573-580.
4. Tsuchiya, T. 1972. BGN 2:107-108
5. TsuchLya, T., S.D. Tanksley and R. Ward. 1976. BGN 6:95-96.
Prepared: T. Tsuchiya and L. Seip. 1980. BGN 10: 118.
Corrected: T. Tsuchiya. 1983. BGN 13:110. BGS number was changed.
BGS 0313 chlorina seedling f6
Previous nomenclature and gene symbol: yv (5)
Inheritance:
Monofactorial recessive (5)
Located on chromosome 7 (5, 1)
Description:
Seedling appears yellowish-white initially but green pigments develop
near the tips in approximately 1 week. Pigments that develop in the leaves
are not as intense as in normal seedlings. Plants mature but do not compete
well with normal types under field conditions.
Origin: X - irradiated induced mutation in Himalaya barley
Mutational events: f6 in Himalaya barley
Mutant used for description and seed stock: f6 in GBC 681 f6 o_ V_ S_ rn
References:
1. Falk, K. C. and K. J. Kasha. 1983. BGN 13: 121.
2. Kasha, K. J. 1977. BGN 7:89.
3. Kasha, K. J., D. E. Falk and A. Ho-Tsai. 1978. BGN 8:61-65.
4. Tsuchiya, T. 1973. BGN 3:99-103.
5. Tuleen, N. A., L. A. Snyder, R. S. Caldecott and V. S. Hiatt.
1968. Genetics 59:45-55.
Prepared by: K. C. Falk, 1983. BGN 13:111.
BGS 0314 Six-rowed 2 v2
Previous nomenclature and gene symbolization: None
Inheritance:
Monofactorial recessive and epistatic to V (1).
Linked with s located on chromosome 7 (l).
Description: The head appears almost similar to the ordinary six-rowed one, but the upper- and lower-most two or three spikelets are somewhat underdeveloped and sterile with awns markedly reduced (l). Lateral florets are more or less pediceleated (2).
Origin of mutant: X-ray treatment of Svanhals by T. Tsuchiya
Mutational events: V2 in Kmut 27
Mutant used for description and seed stock: v2 of Kmut 27
References:
l. Fukuyama,T. etal 1982. Ber. Ohara Inst. landw. Biol., Okayama Univ.
18:99-113.
2. Takahashi,R. et al. 1972. Ber. Ohara Inst. landw. Biol., Okayama
Univ. 15:147-168.
Prepared: T. Fukuyama, 1983. BGN 13:112.
BGS 0315 Six-rowed 3 v3
Previous Nomenclature and gene symbolization: None
Inheritance:
Monofactorial recessive and epistatic to V (1).
Located on chromosome 7 by use of trisomics (1).
Description:
The head is almost similar to the ordinary six-rowed one, but the lower
spikelets are somewhat underdeveloped. Rachilla is sometimes deformed.
Lateral florets are more or less pediceleated (1).
Origin of mutant:
Gamma-ray treatment of Hakata 2 by T. Tsuchiya
X-ray treatment of Piroline by A. Moes
Mutational events: v3 in Kmut 213, Xb 388.8, Xd 160.46, X15 1463, X17 3555
Mutant used for description and seed stock: v3 of Kmut 213
References:
1. Fukuyama, T., Et al. 1982. Ber. Ohara Inst. landw. Biol., Okayama
Univ. 18:99-113.
Prepared: T. Fukuyama, 1983. BGN 13:113.
BGS 0316 Partial incompatibility with Hordeum bulbosum Inc
Previous nomenclature and gene symbol: None
Inheritance:
Monofactorial dominant (1)
Located on chromosome 7 (2,3).
Description:
Partial incompatibility resulting in reduced seed sets when used as
female in crosses with Hordeum bulbosum L.
Origin of mutant: Natural occurrence in cv. Vada (1)
Mutational events: Inc in cv. Vada (1)
Mutant used for description and seed stock: Inc in cv. Vada NS
References:
1. Pickering, R. A. and J. D. Hayes. 1976. Partial incompatibility
in crosses between Hordeum vulgare L. and H. bulbosum L.
Euphytica 25:671-678.
2. Pickering, R. A. Further notes on the incompatibility between Hordeum
vulgare L. cv. Vada x H. bulbosum L. Barley Genetics
Newsl. 13:17-19.
3. Pickering, R. A. The location of a gene for incompatibility between
Hordeum
vulgare L. (submitted to Heredity).
Prepared: R. A. Pickering, 1983. BGN 13:114.
BGS 0396 Shrunken endosperm seg6
Previous nomenclature and symbolization: se6 (BGN 5:114)
Inheritance:
Monofactorial recessive. (1).
Located on chromosome 3 (2).
Description: The phenotype is "thin" seed. The expression of the character is affected by environment. Seed weights of 25, 50 and 75 per cent of normal were obtained from plants grown in the field in Arizona, in the field in Montana and in the greenhouse in Arizona. Pollen mother cell meiosis and fertility are normal. No difficulties have been encountered in etablishing stands of this mutant under field conditions. (1)
Origin of mutant: Spontaneous occurrence in the cultivar Ingrid C.I. 10083.
Mutational events:
seg6f spontaneous occurrence in material of hybrid origin
seg6g spontaneous occurrence in the cultivar Ingrid C.I. 10083.
Mutant used for description and seed stock: seg6g in Ingrid C.I. 10083.
References:
(1) Ramage, R. T. and J. F. Scheuring. Shrunken endosperm mutants seg6
and seg7. Barley Genetics Newsletter 6: 59-60.
(2) Ramage, R. T. 1983. Chromosome location of shrunken endosperm mutants
seg6g and seg8k. Barley Genetics Newsletter 13:64-65.
Prepared: R. T. Ramage and R. F. Eslick. 1974. BGN 5:114.
Revised: R. T Ramage and J. F. Scheuring. 1975. BGN 6:141.
Corrected: T. Tsuchiya. 1980. BGN 10:130.
Revised: R. T. Ramage. 1983. BGN 13:115.
BGS 0453 Shrunken endosperm seg8
Previous nomenclature and gene symbolization: None.
Inheritance:
Monofactorial recessive (1).
Located on chromosome 1 (2).
Description: The phenotype is "thin" seed. The expression of the character is not greatly affected by environment. Seed weights of 24, 23 and 27 percent of normal were obtained from plants grown in the field in Arizona, in the field in Montana and in the greenhouse in Arizona. In the mutant, meiosis and male and female fertility are normal. No difficulties have been encountered in establishing stands of the mutant under field conditions (1).
Origin of mutant: Spontaneous occurrence in the line 60-Ab-1810-53 (later released as the cultivar 'Klages', C.I. 15478).
Mutational events: seg8k spontaneous occurrence in the line 60-Ab-1810-53 (Klages, C.I. 15478).
Mutant used for description and seed stock: seg8k in 60-Ab-1810-53 (Klages, C.I. 15478).
References:
(1) Ramage, R. T. and C. L. Crandall. 1981. Shrunken endosperm mutant
seg8. Barley Genetics Newsletter 11: 34.
(2) Ramage, R. T. 1983. Chromosome location of shrunken endosperm mutants
seg6g and seg8k. Barley Genetics Newsletter 13: 64-65.
Prepared: K. T. Ramage and C. L. Crandall. 1981. BGN 11: 103.
Revised: R. T Ramage. 1983. BGN 13:116.
BGS 0455 Shrunken endosperm seg8
Previous nomenclature and gene sysbolization: None.
Inheritance:
Monofactorial recessive (1).
Located on chromosome 1 (2).
Description: The phenotype is "thin" seed. The expression of the character is not greatly affected by environment. Seed weights of 24, 23 and 27 percent of normal were obtained from plants grown in the field in Arizona, in the field in Montana and in the greenhouse in Arizona. In the mutant, meiosis and male and female fertility are normal. No difficulties have been encountered in establishing stands of the mutant under field conditions (1).
Origin of mutant: Spontaneous occurrence in the line 60-Ab-1810-53 (later released as the cultivar 'Klages', C.I. 15478).
Mutational events: seg8k spontaneous occurrence in the line 60-Ab-1810-53 (Klages, C.I. 15478).
Mutant used for description and seed stock: seg8k in 60-Ab-1810-53 (Klages, C.I. 15478).
References:
1. Ramage, R. T. and C. L. Crandall. 1981. Shrunken endosperm mutant
seg8. Barley Genetics Newsletter 11:34.
2. Ramage, R. T. 1983. Chromosome location of shrunken endosperm mutant
seg6g and seg8k. BGN 13:64-65.
Prepared by: R. T. Ramage and C. L. Crandall. 1981. BGN 11:103.
Corrected:
R. T. Ramage. 1983. BGN 13:116.
T. Tsuchiya, 1983. BGN 13:117. BGS number was changed
BGS 0456 Defective endospers, xenia dex2b
Previous nomenclature and symbolization: None.
Inheritance: Monofactorial recessive expressing xenia (1).
Description: The phenotype is "thin" seed. Homozygous recessive seed grow normally for a few days after fertilization. Then, growth stops and the seed begin to shrivel. At maturity, defective endosperm seed are so reduced in size that they are barely visible within the lemma and palea. The defective endosperm prevents stand establishment under normal field conditions. The mutant expresses xenia and behaves as a zygotic lethal. Seed produced on heterozygous plants are fount in a ratio of about 3 normal viable seed : 1 defective inviable seed (l).
Origin of mutant: Spontaneous occurrence in the cultivar Betzes, C.I. 6398.
Mutational events: dex2b spontaneous occurrence in the cultivar Betzes, C.I. 6398.
Mutant used for description and seed stock: dex2b in the cultivar Betzes, C.I. 6398.
References:
1. Ramage, R. T. and C. L. Crandall. 1981. Defective endosperm xenia
(dex) mutants Barley Genetics Newsletter 11:32-33.
Prepared by: R. T. Ramage and C. L. Crandall. 1981. BGN 11:105.
Corrected: T. Tsuchiya, 1983. BGN 13:118. BGS number was changed
BGS 0457 Defective endosperm, xenia dex3c
Previous nomenclature and symbolization: None.
Inheritance: Monofactorial recessive expressing xenia (1).
Description: The phenotype is "thin" seed. Homozygous recessive seed grow normally for a few days after fertilization. Then, growth stops and the seed begin to shrivel. At maturity, defective endosperm seed are so reduced in size that they are barely visible within the lemma and palea. The defective endosperm prevents stand establishment under normal field conditions. The mutant expresses xenia and behaves as a zygotic lethal. Seed produced on heterozygous plants are found in a ratio of about 3 normal viable seed : 1 defective inviable seed (1).
Origin of mutant: Spontaneous occurrence in hybrid material.
Mutational events: dex3c spontaneous occurrence in hybrid material. dex3f spontaneous occurrence in hybrid material.
Mutant used for description and seed stock: sex3c in hybrid material.
References:
L. Ramage, R. T. and C. L. Crandall. 1981. Defective endosperm xenia
(dex) mutants. Barley Genetlcs Newsletter 11:32-33
Prepared by: R. T. Ramage and C. L. Crandall. 1981. BGN 11:106.
Corrected: T. Tsuchiya, 1983. BGN 13:119. BGS number was changed
BGS 0458 Defective endosperm, xenia dex4d
Previous nomenclature and symbolization: None.
Inheritance: Monofactorial recessive expressing xenia (1).
Description: The phenotype is "thin" seed. Homozygous recessive seed grow normally for a few days after fertilization. Then, growth stops and the seed begin to shrivel. At maturity, defective endosperm seed are so reduced in size that they are barely visible within the lemma and palea. The defective endosperm prevents stand establishment under normal field conditions. The mutant expresses xenia and behaves as a zygotic lethal. Seed produced on heterozygous plants are found in a ratio of about 3 normal viable seed: 1 defective inviable seed (1).
Origin of mutant: Diethyl sulfate induced mutation in the cultivar Betzes, C.I. 6398.
Mutational events: dex4d diethyl sulfate induced in the cultlvar Betzes, C.I. 6398.
Mutant used for description and seed stock: dex4d in the cultivar Betzes, C.I. 6398.
References:
1. Ramage, R. T. and C. L. Crandall. 1981. Defective endosperm xenia
(dex) mutants. Barley Genetics Newsletter 11: 32-33.
Prepared by: R. T. Ramage and C. L. Crandall. 1981. BGN 11:107.
Corrected: T. Tsuchiya, 1983. BGN 13:120. BGS number was changed
BGS 0459 vegetative dwarf dwf
Previous nomenclature and gene symbol: None
Inheritance:
Monofactorial recessive (1).
Chromosomal location unknown.
Description: Mutant plants are completely vegetative and have a rosette habit. Internode elongation is absent until gibberellic acid is applied exogenously. Nearly normal growth can be induced by repeated applications of low concentrations of GA3, or by a single application of higher concentrations. Seed may be produced on treated plants. Plants grown from such seeds exhibit some carry-over effect of the GA3.
Origin: X-ray treatment of the cultivar Perth (CI 15624)
Mutational events: dwf in the cultivar Perth (CI 15624)
Mutant used for description and seed stock: dwf in the cultivar Perth (CI 15624)
References: Falk, D. E. and K. J. Kasha, 1982. A vegetative dwarf mutant in barley. BGN 12:69-72.
Prepared by: D. E. Falk and K. J. Kasha, 1982. BGN 12:106.
Corrected: T. Tsuchiya, 1983. BGN 13:121. BGS number was changed
