Vol. 20


A.
Report of the Committee on Gene Symbolization, Nomenclature and Linkage Groups
 
A. YOSHIMURA and Y. NAGATO
1) Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581 Japan
2) Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, 113-8657 Japan

I.
Registration of new gene symbols

The following genes are newly registered:

GENE SYMBOL REGISTRATION No. 155
Registrant: Masayuki Murai1), Kiyoaki Maruyama2) and Fumio Kikuchi3)
1) Faculty of Agriculture, Kochi University, Nankoku, 783-8502, Japan
2) National Agricultural Research Organization, National Institute of Crop Science, Tsukuba, 305-8518, Japan
3) International Agricultural Development Department, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
Gene symbol: sd1-r, sd1-d
Gene name: reimei dwarf and dee-geo-woo-gen dwarf for sd1-r and sd1-d, respectively
Character expression: Multiple alleles at the sd1 locus; the effect of reducing culm length in sd1-d is greater than that in sd1-r.
Name of original line: sd1-r ; Reimei (a gamma-ray induced mutant from Fujiminori)
sd1-d ; Dee-geo-woo-gen (Taiwanese cultivar)
Gene locus: Chromosome 1
Remark: The mode of inheritance of each of reimei dwarf and dee-geo-woo-gen dwarf has already been clarified (Aquino and Jennings 1966; Futsuhara 1968; Mackill and Rutger 1979). The registrants determined that the dwarfing gene of Reimei is also an allele at the sd1 locus, and reported that sd1-r and sd1-d reduced culm length by 12.1 and 18.4 cm, respectively, under the common genetic background of Fujiminori.
Reference: Murai, M. and H. Yamamoto (2001) SABRAO Journal of Breeding and Genetics 33 (1): 21-30.
Kikuchi, F. et al. (1985) Bull. Nat. Inst. Agr. Sc., Ser. D36: 125-145 (in Japanese with English abstract).

GENE SYMBOL REGISTRATION No. 156
Registrant: Kaoru Zenbayashi* and Shinzo Koizumi** (National Agricultural Research Organization, *Tohoku National Agricultural Research Center, Akita 014-0102 Japan, **National Agricultural Research Center)
Gene symbol: Pi 34
Gene name: Rice blast resistance 34
Character expression: Partial resistance to rice blast in testing nursery under natural condition
Name of original line: Chubu 32 (Japanese paddy rice cultivar)
Gene locus: In the middle part of chromosome 11
Remark: The gene controlling partial resistance to rice blast in Chubu 32 was mapped between RFLP markers E1126 and C1172 of chromosome 11.
Reference: Zenbayashi-Sawata, K., T. Ashizawa T. Tani and S. Koizumi (2003) Jpn. J. Phytopathol. 69(3): 234.
Zenbayashi, K., T. Ashizawa T. Tani and S. Koizumi (2002) Theor. Appl. Genet. 104 (4): 547-552.
Zenbayashi, K., T. Ashizawa and S. Koizumi (2002) Abstract of 3rd International Rice Blast Conference: 36.
Zenbayashi, K., T. Ashizawa and S. Koizumi (2002) Jpn. J. Phytopathol. 68(2): 178.

GENE SYMBOL REGISTRATION No. 157
Registrant: Xi-Ming Li (China National Rice Research Institute, Hangzhou 310006, China)
Gene symbol: Wbph6
Gene name: Whitebacked planthopper resistance 6
Character expression: Dominance gene for whitebacked planthopper resistance
Name of original line: Gui-Yi-Gu
Gene locus: Linked to a SSR marker RM167 with the genetic distance of 21.2 cM on chromosome 11.
Remark: Data of F3 lines derived from resistant and susceptible varieties are reported.
Reference: Li, X.-M. et al. (1987) Acta Genetica Sinica 14(6):413-418 (in Chinese with English abstract).
Li, X.-M. et al. (1990) Chinese J. Rice Sci. 4(3):113-116 (in Chinese with English abstract).
Ma, L.-Y. et al. (2001) CRRN 9(4):2-3.
Ma, L.-Y. et al. (2001) Chinese J. Rice Sci. 16(1):15-18 (in Chinese with English abstract).

GENE SYMBOL REGISTRATION No. 158
Registrant: F. Y. Hu1), D. Y. Tao1), E. Sacks2), B. Y. Fu3), P. Xu1), J. Li1), Y. Yang1), J. Zhou1), T.S. Cruz2), K. McNally2), G. S. Khush2), A. H. Paterson4), and Z.-K. Li2,3)
1) Institute of Food Crops, Yunnan Academy of Agricultural Sciences, Kunming 650205, China,
2) International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines,
3) Crops Science Institute, Chinese Academy of Agricultural Science, Beijing 100081, China,
4) Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA.
Gene symbol: Rhz2
Gene name: Rice Rhizome gene 2 (complementary to Rhz3).
Character expression: Rhz2 controls rice rhizome expression and acts complementarily with Rhz3 located on chromosome 4.
Name of original line: An unnamed O. longistaminata accession with long and strong rhizomes, originally collected from Niger and kindly provided by Hiroshi Hyakutake(Institute of Physical and Chemical Research, Saitama, Japan).
Gene locus: Located between two SSR markers, OSR16 (1.3 cM) and OSR13 (8.1 cM) on rice chromosome 3.
Remark: Data on F2 segregation are reported. Rhz2 and Rhz3 are two dominant complementary genes controlling rhizomatous expression in Oryza longistaminata.
Reference: Hu, F.-Y. et al. 2001. RGN 18: 34-36.
Hu, F.-Y. et al. 2003. Proc. Natl. Acad. Sci. USA 100: 4050-4054.

GENE SYMBOL REGISTRATION No. 159
Registrant: F. Y. Hu 1), D. Y. Tao1), E. Sacks2), B. Y. Fu3), P. Xu1), J. Li1), Y. Yang1), J. Zhou1), T.S. Cruz2), K. McNally2), G. S. Khush2), A. H. Paterson4), and Z.-K. Li2,3)
1) Institute of Food Crops, Yunnan Academy of Agricultural Sciences, Kunming 650205, China,
2) International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines,
3) Crops Science Institute, Chinese Academy of Agricultural Science, Beijing 100081, China,
4) Plant Genome Mapping Laboratory, University of Georgia, Athens, GA 30602, USA.
Gene symbol: Rhz3
Gene name: Rice Rhizome gene 3 (complementary to Rhz2)
Character expression: Rhz3 controls rice rhizome expression and acts complementarily with Rhz2 located on chromosome 3.
Name of original line: An unnamed O. longistaminata accession with long and strong rhizomes, originally collected from Niger and kindly provided by Hiroshi Hyakutake (Institute of Physical and Chemical Research, Saitama, Japan).
Gene locus: Located between two SSR markers, RM119 (2.2 cM) and RM273 (7.4 cM) on chromosome 4.
Remark: Data on F2 segregation are reported. Rhz2 and Rhz3 are two dominant complementary genes controlling rhizomatous expression in Oryza longistaminata.
Reference: Hu, F.-Y. et al. 2001. RGN 18: 34-36.
Hu, F.-Y. et al. 2003. Proc. Natl. Acad. Sci. USA 100: 4050-4054.

 Vol. 20