I. Registration of new gene symbols

In accordance with rule 7, the following gene symbols are registered after an examination for priority and validity, with the assistance of coordinators for respective traits.

GENE SYMBOL REGISTRATION No. 58

Registrant: Yoshio Sano (National Institute of Genetics, Mishima, Japan)

Gene symbol: S-11 (t)

Gene name: Hybrid sterility-11

Character expression: Gametic elimination due to allelic interaction

Name of original line: PTB10

Origin: Indica type varieties

Remark: A near-isogenic line is established. Data on F`2` and backcross generations are reported.

Reference: Sano, Y. 1993. RGN 10: 76-77.

GENE SYMBOL REGISTRATION No. 59

Registrant: Yoshio Sano (National Institute of Genetics, Mishima, Japan)

Gene symbol: En-Se-1 (t)

Gene name: Enhancer for Se-1

Character expression: Enhancement of photoperiod sensitivity

Name of original line: W593

Origin: Oryza rufipogon from Malaysia

Remark: A near-isogenic line is established. Data on F`2` and backcross generations are reported.

Reference: Sano, Y. 1992. Japan. J. Breed. 42: 561-572.

GENE SYMBOL REGISTRATION No. 60

Registrant: Yoshio Sano (National Institute of Genetics, Mishima, Japan)

Gene symbol: Lcr

Gene name: Low crossability

Character expression: Low seed setting when crossed with Taichung 65 as the pollen parent

Name of original line: W593

Origin: Oryza rufipogon from Malaysia

Remark: A near-isogenic line is established. Data on F`2` and backcross generations are reported.

Reference: Sano, Y. 1992. Japan. J. Breed. 42: 561-572.

GENE SYMBOL REGISTRATION No. 61

Registrant: Yoshio Sano (National Institute of Genetics, Mishima, Japan)

Gene symbol: Ifr

Gene name: Induction of fertility restoration

Character expression: Fertile revertants occur when combined with [cms-bo] cytoplasm.

Name of original line: Taichung 65

Remark: Data on F`2`, F`3` and backcross generations are reported.

Reference: Sano, Y., M. Eiguchi, H. Hirano and M. Yamada 1992. Genet. Res., Camb. 60: 195-200.

GENE SYMBOL REGISTRATION No. 62

Registrant: Ikuo Nakamura (Iwate Biotechnology Research Institute, 22-174-4 Kitakami, Iwate-ken, Japan)

Gene symbol: ao

Gene name: accelerated internode overgrowth

Character expression: Extreme extension of internode and leaf blade at the vegetative and reproductive stages. No ear formation

Name of original line: A mutant line induced from Koshihikari by gamma ray irradiation

Remark: Segregation data from heterozygous populations are reported. Insensitive to gibberellic acid

Reference: Nakamura, I. 1992. RGN 9: 61-62.

GENE SYMBOL REGISTRATION No. 63

Registrant: Takatoshi Tanisaka, Yutaka Okumoto, Tetsuya Nakazaki, Masayoshi Teraishi (Fac. Agr., Kyoto University, Kyoto, Japan), Toshiyuki Komori (Japan Tabacco Inc. lwata, Japan), Hirotada Yamagata (Fac. Biol. Oriented Sci. and Tech., Kinki University, Wakayama, Japan)

Gene symbol: slg

Gene name: slender glume

Character expression: Slender glume frequently mutates toward wild type and frequently induces mutations in other loci.

Origin: Gimbozu

Gene locus: Chromosome 7

Remark: Data on F`2` segregation and linkage analysis are reported.

Reference: Komori, T., Y. Okumoto, T. Nakazaki, H. Yamagata and T. Tanisaka 1994. Japan. J. Breed. 44 (Suppl. 1): 231.

GENE SYMBOL REGISTRATION No. 64

Registrant : Masahiro Yano (Natl. Inst. Agro-Biol.Resources, Tsukuba,Japan)

Gene symbol : sk-2 (t)

Gene name : scented kernel-2

Character expression : Scent expressed in the tissue of leaf and kernel

Name of original line : Surjamkhi

Gene locus : Chromosome 8

Remark : Data on F2 segregation and linkage analysis with RFLP markers are reported.

Reference : Yano, M., E. Shimosaka, A. Saito and M. Nakagahra 1992. Japan. J. Breed. 41 (Suppl. 1): 338-339.

GENE SYMBOL REGISTRATION No. 65

Resistrant: Itsuro Takamure and Toshiro Kinoshita (Fac. Arg. Hokkaido University, Sapporo, Japan)

Gene symbol: rcn-3

Gene name: reduced culm number-3

Character expression: Few tillers under low temperature conditions

Name of original line: N-176

Origin: Mutant induced from AC-15 by gamma-ray irradiation

Remark: Data on F`2` and F`3` segregations and allelism tests are reported.

Reference: Takamure, I. and T. Kinoshita 1989. Mem. Fac. Agr. Hokkaido Univ. 16(3): 287-294.

GENE SYMBOL REGISTRATION No. 66

Registrant: Itsuro Takamure and Toshiro Kinoshita (Fac. Agr., Hokkaido University, Sapporo, Japan)

Gene symbol: rcn-4

Gene name: reduced culm number-4

Character expression: Few tillers under low temperature condition

Name of original line: N-175

Origin: Mutant induced from AC-34 by gamma-ray irradiation

Remark: Data on F`2` and F`3` segregations and allelism tests are reported.

Reference: Takamure, I. 1991. Rice Genetics 11: 716-717.

GENE SYMBOL REGISTRATION No. 67

Registrant: Itsuro Takamure and Toshiro Kinoshita (Fac. Agr. Hokkaido University, Sapporo, Japan)

Gene symbol: rcn-5

Gene name: reduced culm number-5

Character expression: Few tillers under low temperature condition

Name of original line: N-185

Origin: Mutant induced from Shiokari by gamma-ray irradiation

Gene locus: Chromosome 6

Remark: Data on F`2` segregation and allelism tests are reported.

Reference: Takamure, I. and T. Kinoshita 1993. Mem. Fac. Agr. Hokkaido

Univ. 18(4): 447-454.

GENE SYMBOL REGISTRATION No. 68

Registrant: Itsuro Takamure and Toshiro Kinoshita (Fac. Agr. Hokkaido University, Sapporo, Japan)

Gene symbol: mi-k

Gene name: 'Kitaake mutant' minute grain

Character expression: Small grain and late heading

Name of original line: AT-130

Origin: Mutant induced from Kitaake by gamma-ray irradiation during anther culture

Remark: Data on F`2` and F`3` segregations and allelism tests are reported.

Reference: Takamure, I. and T. Kinoshita 1993. Mem. Fac. Agr. Hokkaido Univ. 18(4): 437-446.

GENE SYMBOL REGISTRATION No. 69

Registrant: Makio Shiraishi (Ohita Agric. Exp. Station, Nakatu, Japan) and Hikaru Satoh (Fac. Agr., Kyushu University, Fukuoka, Japan)

Gene symbol: Beta-Amy-1

Character expression: Beta-amylase activity in germinating seeds

Origin: Beta-Amy-11: LO 1050 Beta-Amy-12: Kinmaze Beta-Amy-13: HO 1202 Beta-Amy-10: HO 246

Gene locus: Chromosome 7

Remark: Data on F`2` segregation and trisomic analysis are reported.

Reference: Shiraishi M., H. Satoh and W. Hara 1986. RGN 3: 43- 44. Shiraishi M. and H. Satoh 1990. Japan. J. Breed. 40 (Suppl. 1): 454-455.