• Rgn6

II. Registration of new gene symbols

GENE SYMBOL REGISTRATION NO. 20

Gene symbol: Gdlz-l

Gene name: Glutamate dehydrogenase-2

Character expression: Homozygous genotypes are shown as one tight band, and heterozygous genotype as a broad band, respectively (trimeric form). Expressed in young root, plumule and slightly in mature leaf.

Name of original lines: Ac259 is a variant having allele 2, and Taichung 65 and AC001 have allele 1.

Gene locus: Linkage group XI

Remark: F2 segregation and linkage data are reported.

Reference: Ishikawa, R., H. Morishima, K. Mori and T. Kinoshita 1989. (Pub. list 4)

GENE SYMBOL REGISTRATION NO. 21

Gene symbol: Enp-1

Gene name: Endopeptidase-1

Character expression: Monomer.A nul allele was identified.

Name of original lines: ES79, BS 117

Gene locus: Linkage group I

Remark: Previously named EP-A (de Kochko 1987).Tightly linked to Cat-1.

Reference: Pham, J. L., M. Causse, A. Ghesquiere and A. de Kochko 1989. (Pub. list 14)

GENE SYMBOL REGISTRATION NO. 22

Gene symbol: Xa- 16

Gene name: Xanthomonas campestris pv. oryzae resistance-16

Character expression: Resistance to Japanese isolates H8581 and H8584, as a dominant character, but susceptibility to other identified races of Japan.

Name of original line: Te-tep

Reimark: F2 segregation data are reported.

Reference: Noda, T. and A. Ohuchi 1989. (Pub. list 11)

GENE SYMBOL REGISTRATION NO. 23

Gene symbol: Xa-17

Gene name: Xanthomonas campestris pv. oryzae resistance-17

Character expression: Resistance to Japanese isolates H8313, as a dominant character.

Name of original line: Asominori

Remark: F2 segregation data are reported.

Reference: Ogawa, T., H. Kaku and T. Yamamoto 1989. (Pub. list 13)

GENE SYMBOL REGISTRATION NO. 24

Gene symbol: Xa-18

Gene name: Xanthomotias campestris pv. oryzae resistance-18

Character expression: Resistance to Burmese isolates, BM8417 and BM8429, as a dominant character.

Name of original line: Toyonishiki, Milyang 23 and IR 24

Remark: F2 segregation data are reported.

Reference: Yamamoto, T. and T.Ogawa 1989. (Personal Comm.)

GENE SYMBOL REGISTRATION NO. 25

Gene symbol: d-60

Gene name: dwarf (Hokuriku 100)

Character expression: 30% shorter in culm length as compared to parental cultivar, lodging resistance. (Fig. 1).

Name of original line: Hokuriku 100

Origin: Gamma-ray-induced mutant from Koshihikari.

Remark: F2 segregation,F3 progeny tests and allelism tests are reported.

Reference: Tanisaka, T., M. Tomita and H. Yamagata, 1989. (Pub. list 19)

Fig. 1. Dwarf mutant, d-60 (right)) and control, Koshihikari (left).

Tomita, M., T. Tanisaka and H. Yamagata, 1988a. (Pub. list 20)

Tomita, M., T. Tanisaka and H. Yamagata, 1988b. (Pub. list 21)

GENE SYMBOL REGISTRATION NO. 26

Gene symbol: sh-2

Gene name: shattering-2

Character expression: shattering

Name of original line: SC 2

Origin: Taichung (Native) 1

Gene locus: Linkage group III

Remark: F2 segregation and linkage data are reported.

Reference: Oba, S and F. Kikuchi,1989. (Pub. list 12)

GENE SYMBOL REGISTRATION NO. 27

Gene symbol: bph-8

Gene name: brown planthopper-8

Character expression: Brown planthopper resistance

Name of original line: Chin saba

Remark: Data on biotype reaction, F2 segregation and F3 progeny tests are reported.

Reference: Ikeda, R. and C. Kaneda 1982. (Pub. list 1) Neinoto, H., R. Ikeda and C. Kaneda 1989. (Pub. list 10)

GENE SYMBOL REGISTRATION NO. 28

Gene symbol: Bph-9

Gene name: Brown planthopper-9

Character expression: Brown planthopper resistance

Name of original line: Pokkari

Remark: Data on biotype reaction, F2 segregation are reported.

Reference: Ikeda, R. and C. Kaneda 1982. (Pub. list 1) Nemoto, H., R. Ikeda and C. Kaneda 1989. (Pub. list 10)

GENE SYMBOL REGISTRATION NO. 29

Gene symbol: chl-10

Gene name: chlorine-10

Character expression: Yellowish leaves throughout the growth period.

Name of original line: CM 1512

Origin: Mutant induced from Kinmaze by the N-methyl-N- nitrosourea treatment.

Gene locus: Linkage group X

Remark: Data on F2 segregation and linkage are reported.

Reference: Iwata et al. 1989. (Pub. list 6; RGN, this issue, Pub. list 7)

GENE SYMBOL REGISTRATION NO. 30

Gene symbol: S-6

Gene name: Hybrid sterility-6

Character expression: Semi-sterility in heterozygotes S-6/S-6^a due to elimination of gamates with S-6^a

Name of original line: W593 (0. rufipogon from Malaya)

Gene locus: Linkage group I

Remark: Linkage data with wx and Se-1 are reported.

Reference: Sano, Y. 1989. (Pub. list 15, 16)

GENE SYMBOL REGISTRATION NO. 31

Gene symbol: sd-7(t)

Gene name: Semidwarf-7

Character expression: Reduction in length of the 2nd to 5th internodes from the top

Name of original line: Taichung 65, X-ray induced

Gene locus: Unknown,independent of sd-1

Reference: Tsai, K. H. 1989 (RGN 6, Res. note 22)

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