II

Rules for rice gene symbolization were decided on the occasion of the International Rice Genetics Symposium in May 1986. Since then, 112 genes have been newly registered in accordance with the rule 7. Problems of naming and usages are discussed in several reports from coordinators which are mentioned in each volume of RGN, and guidelines for nomenclature of cloned genes or DNA fragments were proposed in RGN 8: 51-53.

Rice genes published hitherto are listed alphabetically in Table 1 and there is another table classified by the different traits (Table 2). There are many unauthorized genes which were marked with asterisks. Above all prompt registration with the convener is expected in accordance with the rule 7 (see RGN 3: 4-5). The convener welcomes consultation and suggestions on this matter.

There still exist several problems about naming and usages such as genes for heading or flowering date (E and Ef), sterility and lethality(S,s,D,L etc.), male sterility (classification and allelism test), name of seed proteins (Glu,glup, pro etc.), isozymes (cloned genes) and designation of molecular markers and QTLs. I hope to discuss these problems in the Third International Rice Genetics Symposium and other occasions. I hope the coordinators contribute to RGN about the outcome of discussions.

In the Third Rice Genetics Symposium, Dr. N.lwata was elected for the new convener of this committee. His address is as follows:

cg*      ciger shaped panicle (Seetharaman & Srivastava 1969, Prasad & Seetharaman
         1991)
chl-l    chlorina-1 (Chr.3, Iwata & Omura 1971b, Omura et al. 1978, Iwata &Omura
(ch-l)   1984, Yoshimura et al. 1992a)

ch1-2    chlorina-2 (Chr.3, Iwata et al. 1977, Omura et al. 1978, Iwata & Omura 1984)
chl-3    chlorina-3 (Chr.3, Omura et al. 1978)
chl-4     chlorina-4 (Chr.6, Omura et al. 1978, Iwata & Omura 1984)
chl-5    chlorina-5(Chr.l, Iwata et al. 1979a)
chl-6    chlorina-6 (Chr.l, Iwata et al. 1979a, Iwata 1990)

chl-7    chlorina-7 (Chr.6, Okuno 1983, Librojo & Khush 1986, Sanchez & Khush 1991)
chl-8    chlorina-8 (Chr.8, Khush & Cruz 1988, Sanchez & Khush 1994)
chl-9    chlorina-9 (Chr.8, Khush & Cruz 1988)
chl-10     chlorina-10 (Chr.2, Iwata et al. 1989a,b)

chs-l(t)* chlorosis caused by low temperature-1 (17ºC)/chs-1^A ,chs-l^B ,chs-1^C
            (Chr.9, Chuong & Omura 1982)
chs-2(t)* chlorosis caused by low temperature-2 (17º C) /chs-2^B, chs-2^C
        (Chuong & Omura 1982)
chs-3(t)* chlorosis caused by low temperature-3 (17º C) (Chuong & Omura 1982)
chs-4(t)* chlorosis caused by low temperature-4 (15º C) (Chuong & Omura 1982)
Cht-1*    Chitinase-1 (Chr.6, Saito et al. 1991, Nishizawa et al. 1993)
Cht-2*    Chitinase-2 (Chr.5, Saito et al. 1991, Nishizawa et al. 1993)
Cht-3*    Chitinase-3 (Chr.6, Nishizawa et al. 1993)

Cl Clustered spikelets (Chr.6, Jodon 1957, Nagao & Takahashi 1963.
    Pavithran et al. 1989)
clw claw shaped spikelet (Takahashi et al. 1968)
[cms-bo]    'Chinsurahboro II' cytoplasm (Shinjo 1969, 1975)
[cms-ld]     'Lead rice' cytoplasm (Watanabe 1971)
[cms-TA]    'TA820' cytoplasm (Kitamura 1962a,b)
cms-CW]     Chinese wild rice cytoplasm (Katsuo & Mizushima 1958)
[cms-WA]     WA-group cytoplasm (Cheng & Yuan 1980)

[cms-HL] HL-group cytoplasm (Cheng Si Yuan 1980)
[cms-ak] 'Akebono' cytoplasm (Yabuno 1977) [cms-ip])

[cms-UR89]*    'UR89F' cytoplasm (Shinjo, 1990)
[cms-UR102]*    'UR102F' cytoplasm (Shinjo 1990)
[cms-UR104]*    'UR104F' cytoplasm (Shinjo 1990)
[cms-UR27]*    'UR27F' cytoplasm (Shinjo 1990)
[cms-UR106]*    'UR106F' cytoplasm (Shinjo 1990)

[cms-54257]* Cytoplasmic mutant induced by somaclonal variation (Ling
et al.1989)
[cms-Kalinga-I]* Cytoplasmic controlled cold tolerance (Ratho and Pradhan 1992)

cyc-1* cyclophilin-1 (Chr.9, Tanksley et al. 1993)
cyc-2* cyclophilin-2 (Chr.2, Tanksley et al. 1993)

A A	Anthocyanin activator/A^S,A^E,A^d, A^m / complementary with C and P (Chr.l,Nagao & Takahashi 1963, Setty & Misro 1973, Mori & Takahashi 1981, Iwata et al. 1989, Kishimoto et al. 1992)
Ac-ef-1	Acceleration of heading (ef-1 (Tsai 1993)
Acp-l	Acid ghosphatase-1 /Acp-1⁰,Acp-l^l(Acp-1⁴),Acp-l² (Acp-l⁺⁹), Acp-l³ (Acp-l⁴) (Chr.l2. Endo 1981b. Wu et al. 1988, Ishikawa et al. 1987, 1989a,b, 1991a,b,Guiderdomi et al. 1989, Ishikawa & Morishima 1989, Ishikawa 1991b, Pham et al. 1990, Zhu et al. 1993)
Acp-2	Acid phosphatase-2/acp-2⁰,Acp-2¹(Acp-2^Fa) (Chr.l2, Pai et al. 1975, Wu et al. 1988, Guiderdomi et al. 1989, Ishikawa et al. 1989a, Pham et al. 1990, Zhu et al. 1993)
Acp-3	Acid phosphatase-3 (Pai et al. 1975, Pham et al. 1990)
Acp-4	Acid phosphatase-4/Acp-4¹, Acp-4² (chr.7, Guiderdoni et al. 1989, Tanksley et al. 1993)
Actin-1*	Actin-1 (Chr.3, Tanksley et al. 1993)
Adh-l	Alcohol dehydrogenase-1/Adh-l⁰, Adh-1¹,Adh-1², Adh-l³(Chr.ll, Ranjhan et al. 1986, 1988, 1991, Ishikawa & Morishima 1989, Sanchez et al. 1990, Brar et al. 1991, Ishikawa et al. 1989a, 1991a,b, Ahenes et al. 1994)
Adh-2*	Alcohol dehydrogenase-2 (Chr.9, Ranjhan et al. 1991)
ae-1	amylose extender-1(Yano et al. 1985)
ae-2(t)	amylose extender-2(Kikuchi & Kinoshita 1987)
ae-3(t)*	amylose extender-3 (Chr.2, Kaushik & Khush 1991)
al-l (al-K-l)	albino-1 (Chr.6, Iwata & Omura 1978)
al-2	albino-2 (Chr.5, Iwata & Omura 1978, Iwata et al. 1978a, 1984)
al-3	albino-3 (Chr.5, Iwata & Omura 1978, Iwata et al. 1984)
al-4	albino-4 (Chr.l, Iwata & Omura 1978, Iwata et al. 1989b)
al-5	albino-5 (Chr.4, Iwata & Omura 1978)
al-6(t)	albino-6 (Chr.5, Iwata & Omura 1978, Iwata et al. 1981)
al-7(t)	albino-7 (Chr.4, Iwata & Omura 1978)
al-8	albino-8 (Chr.l, Iwata & Omura 1978, Iwata et al. 1979a, 1989b)
al-9(t)	albino-9 (Chr.6, Iwata et al. 1981)

al-10	albino-10-(Chr.3,Iwata et al. 1979b, 1985)
Ald-1*	Aldolase-1 (Chr.5, Saito et al. 1991, Fukuda et al. 1994, Kishimoto et al. 1994c)
Ald-2*	Aldolase-2(Chr.l, Saito et al. 1991, Fukuda et al. 1994, Kishimoto et al. 1994c)
Ald-3*	Aldolase-3 (Chr.l2, Fukuda et al. 1994)
alk	alkali degeneration (Chr.6, Kudo 1968, Lin et al. 1994, Yanagihara et al. 1995)
Am(t)*	High amylose (Hsieh & Hang 1989)
Amp-l (Lap-1, Lap-F)	Aminopeptidase-1 /Amp-l⁰,Amp-l¹,Amp-l², Amp-l³,Amp-1⁴,Amp-l⁵, Amp-1⁶ (Chr.2, Wu et al. 1988, Pham et al 1990, Nakagahra 1990, Saito et al. 1991)
Amp-2 (Alap-A)	Aminopeptidase-2/ Amp-2¹,Amp-2²,Amp-2³,Amp-2⁴ (Chr.8, Ishikawa et al. 1989a, Wu et al. 1988, Pham et al. 1990, Zhu et al. 1993)
Amp-3 (Amp-l)	Aminopeptidase-3/ Amp-3⁰, Amp-3¹, Amp-3², Amp-3³, Amp-3⁴, Amp-3⁵, Amp-3⁶ (Chr.6, Sano & Barbier 1985, Pham et al. 1990. Brar et al. 1991, Ishikawa et al. 1991a,b)
Amp-4	Aminopeptidase-4/Amp-4¹,Amp-4²,Amp-4³,Amp-4⁴ (Chr.8, Wu et al. 1988, Malik and Khush 1994)
Aap-5	Aminopeptidase-5/ Amp-5⁰, Amp-5¹, Amp-5^2, Amp-5³, Amp-5⁴, (Chr.6, Cai 1995)
AmylA/C* (RAmylA/C)	Alpha-amylase-1A/C (Chr.2, Ranjhan et al. 1991, Rodriguez et al. 1991, Parco et al. 1994)
AmylB* (RAmylB)	Alpha-amylase-1B (Chr.l, Ranjhan et al. 1991, Rodriguez et al. 1991, Parco et al. 1994)
Amy2A* (RAmy2A)	Alpha-amylase-2A (Chr.6, Ranjhan et al. 1991, Rodriguez et al. 1991, Parco et al. 1994)
AIBY3A/B/C* (RAmy3A/B/l	Alpha-amylase-3A/B/C (Chr.9, Ranjhan et al. 1991, Rodriguez et al. 1991, Parco et al. 1994)
Amy3D/E* (RAmy3D/E)	Alpha-amylase-3D/E (Chr.8, Ranjhan et al. 1991, Rodriguez et al. 1991, Parco et al. 1994)
An-1	Awn-1 / duplicate or triplicate (Chr.4, Nagao & Takahashi 1963)
An-2	Awn-2 (Chr.5, Nagao & Takahashi 1963, Sastry & Seetharaman 1980)
An-3	Awn-3 (Chr.3, Nagao & Takahashi 1963, Sastry 1977, Takamure & Kinoshita 1991, Takamure et al. 1991)
An-4(t)*	Awn-4 (Chr.8, Sato & Tsukasaki 1984)

Ana*	Awn development (Prasad & Seetharaman 1991)
Anb*	Awn development (Prasad & Seetharaman 1991)
ao	accerelated overgrowth of internode (Nakamura 1992)
aph	apiculus hairs (Chr.6, Sato 1985, Sato et al. 1987)
Arf-1*	ADP-ribosylation factor (ARF)-1 (Chr.5,Kishimota et al. 1994c)
Arf-2*	ADP-ribosylation factor (ARF)-2 (Chr.l,Kishimoto et al. 1994c)
as	asynapsis-1 (Katayama 1963)
ATP*	ATPase (Chr.5, Tanksley et al. 1993)
aul	auricleless (Chr.4, Librojo & Khush 1986)
B Beta -Amy-1	Beta-Amylase isozyme-1 / ß -Amy-1⁰, ß-Amy-l^l, ß-Amy-l², ß-Amy-1³ (Chr.7, Shiraishi et al. 1986, Shiraishi & Satoh 1990)
bc-l	brittle culm-l (Chr.3, Nagao & Takahashi 1963, Iwata et al. 1985)
bc-2	brittle culm-2 (Chr.5, Takahashi et al. 1968, Sanchez & Khush 1994)
bc-3	brittle culm-3 (Chr.2, Iwata & Omura 1977, 1984, Iwata et al. 1989a)
bc-4	brittle culm-4 (Chr.6, Librojo & Khush 1986)
bc-5	brittle node (Chr. 2, Khush & Sanchez 1993, Sanchez & Khush 1994)
Bc-6*	Brittle culm-6(Singh et al. 1994)
bd-l	beaked lemma / duplicate (Chr.5, Sastry & Seetharaman 1980, Misro 1981)
bd-2	beaked lemma (Sastry & Seetharaman 1980, Misro 1981)
Bf	Brown furrows of hull (Nagao & Takahashi 1963)
bgl	bright green leaf (Chr.5, Iwata et al. 1981, 1984, Iwata &Omura 1984)
Bh-a (Bh-1)	Black hull / complementary action of three genes (Nagao & Takahashi 1954, Maekawa 1982)
Bh-b (Bh-2)	Black hull (Nagao & Takahashi 1954, Maekawa 1982)
Bh-c (=Ph)	Black hull (Chr.4, Nagao & Takahashi 1954, Kuriyama & Kudo 1967)
bl-1	brown leaf spot-1 (Chr.2, Nagao & Takahashi 1963, Yoshimura et al. 1992a)

bl-2 (bl-m)	brown leaf spot-2 (Chr.6, Jodon 1957, Nagaoet al. 1964)
bl-3	brown leaf spot-3 (Chr.6, Takahashi et al. 1968)
bl-4	brown leaf spot-4 (Chr.3, Takahashi et al. 1968)
bl-5	brown leaf spot-5 (Takahashi et al. 1968)
bl-6	brown leaf spot-6 (Takahashi et al. 1968)
bp	Burlush-like panicle (Chr.9,Iwata & Omura 1975, 1984, Kishimoto et al. 1992)
Bph-l	Brown planthopperresistance-1 (Chr.l2, Sidhu & Khush 1978b, Ikeda Si Kaneda 1983, Ikeda 1985, Hirabayashi & Ogawa 1995)
bph-2	brown planthopper resistance-2 (Chr.4, Sidhu & Khush 1978b, Ikeda & Kaneda 1983, Ikeda 1985)
Bph-3	Brown planthopper resistance-3(Chr.l0,Lakshminarayana & Khush 1977, Sidhu & Khush 1978b, Ikeda & Kaneda 1983, Ikeda 1985)
bph-4	brown planthopper resistance-4 (Chr.l0, Lakshminarayana & Khush 1977, Sidhu & Khush 1978b, 1979, Ikeda & Kaneda 1983, Ikeda 1985)
bph-5	brown planthopper resistance-5 (Khush et al. 1985)
Bph-6	Brown planthopper resistance-6(Kabir& Khush 1988)
bph-7	brown planthopper resistance-7 (Kabir & Khush 1988)
bph-8	brown planthopper resistance-8(Nemoto et al. 1989)
Bph-9	Brown planthopper resistance-9 (Nemoto et al. 1989)
Bph(t)*	Brown planthopper resistance introduced from Oryza australiensis (Chr.l2,
	Ishii et al. 1994, Khush et al. 1994)
Bsv (Bs)	Black streaked dwarf resistance (Morinaka et al. 1969)
bzs	bentazon susceptibility (Mori 1984)
Cc	Chromogen for anthocyanin/C^Bs, C^B, C^Bp, C^Bt,c^Br,c^Bd,c^Bkc^Bc,c^Bm / complementary with A and P (Chr.6, Nagao & Takahashi 1963, Setty&Misro 1973, Kinoshita 1984, Kishimoto et al. 1992, Nakazaki et al. 1994)
Cat-1	Catalase-1 /Cat-l¹, Cat-1², Cat-1³ (Chr.6, Ishikawa et al. 1987, 1989a, Wu et al. 1988, Zhu et al. 1993)
Cat-A1*	Catalase-A1(cDNA clone) (Chr.3, Kishimoto et al. 1994b)