B. Report of the Committee on Gene Symbolization,
Nomenclature and Linkage Groups

 
Y. NAGATO’ and A. Yoshimura2, Conveners
1) 
Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo,
113-8657, Japan
2) 
Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581, Japan

 
I. 
Registration of new gene symbols
The following genes are newly registered:
GENE SYMBOL REGISTRATION No. 138
Registrant: 
Katsuyuki Ichitani, Yutaka Okumoto and Takatoshi Tanishaka 
(Graduate School Agricultural Kyoto University, Kyoto, Japan)
Gene symbol: 
Se9
Gene name: 
Photosensitivity 9
Character expression: 
Dominant gene for photoperiod sensitivity. Its recessive allele 
se9 inhibits the expression of photopenod sensitivity genes at
other loci. The segregation of this locus can be observed only
under extremely long daylenghts, presumably more than 17th.
Name of original line: 
Se9, Eiko
se9, Wase-fukoku, Nori 20 and Kirara 397
Remark: 
Data on F2 segregation and photoperiodic responses of origi
nal lines are reported.
Reference: 
Ichitani, K., Y. Okumoto and T. Tanisaka, 1998. Plant Breed
ing 117 (in press).