Tools - Rice Genetics Newsletter - 一覧
Tools - Rice Genetics Newsletter - 一覧
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A. NOTICE AND ANNOUCEMENT
Vol. 1
A. NOTICE AND ANNOUCEMENT
1. The Aim and Scope of the Rice Genetics Newsletter
The general aim of this Newsletter.... is to promote cooperation
and exchange of information and material among rice geneticists. Emphasis will
be laid on standardization of gene symbols and presentation of current linkage
maps, in addition.... to reporting new findings in the genetic study of rice.
Each issue will contain A) Special notices, B) Current linkage
maps, C) List of genes and genetic stocks, D) List of recent publications, E
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B. CURRENT LINKAGE MAPS
Vol. 1
B. CURRENT LINKAGE MAPS
A new linkage map of rice based on latest available information
is presented in Fig. 1.... , with a list of genes of each linkage group.
In the review of rice genetics by Yamaguchi (1927), only four
linkage groups, each consisting of two genes, were reported. Jodon (1948) reported
on eight.... linkage groups involving nearly 50 genes. Since then, information on
the location of different genes has accumulated in both the Indica and Japonica
rices. In 1963, Nagao and Takahashi first proposed
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Table of Contents
Vol. 1
Rice Genetics
Newsletter, Vol. 1
Table of Contents
Dedication....
............... i
Foreword
(T. Matsuo) ............... iv
Message (M. S. Swaminathan) ...............
vi
A.
Notice.... and announcement
1. The aim and scope
of the Rice Genetics Newsletter ............... 1
2. Announcement: The International
Rice Genetics Symposium ............... 1
3. Proposal
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Vol. 1
1. Genes for coloration
==============================================================================
Gene Character Linkage* Chro.... - Strain Reference
symbol group mosome (Institution)
==============================================================================
AS Anthocyanin activator III.... 3 I-33 66,157,172,
(purple apiculus in Surjamukhi(HK) 248,276,280
AE the complementary E 44
action with C and P
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Vol. 1
11. Fungal and bacterial disearses resistance
==============================================================================
Gene Character.... Linkage* Chro- Strain Reference
symbol group mosome (Institution)
==============================================================================
Ce Narrow.... leaf spot Blue Rose 41, 85,91,
resistance C.I.3794 220,221
He Helminthosporium leaf he:Kattorube
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C. LIST OF GENES AND GENETIC STOCKS
Vol. 1
C. LIST OF GENES AND GENETIC STOCKS
This list was compiled on the basis of survey made by several
rice.... geneticists in Japan and information obtained from the International Rice
Research Institute, Los Banos and National Chung Hsing University, Taichung.
Therefore, the list is incomplete, and we hope more.... complete lists will be presented
in the 2nd and later issues of RGN. The institutions maintaining the listed
stocks are shown by codes which are explained below.
The genetic stocks listed
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Vol. 1
10. Cytoplasmic male sterility
==============================================================================
Gene Character Linkage.... * Chro- Strain Reference
symbol group mosome (Institution)
==============================================================================
[ms-bo] 'Chinsurah boro.... II' Chinsurah boro II 257,258,
cytoplasm (RV) 259
[ms-ld] 'Lead rice' cytoplasm Lead rice(NA
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Vol. 1
12. Virus and mycoplasma disease resistance
==============================================================================
Gene Character.... Linkage* Chro- Strain Reference
symbol group mosome (Institution)
==============================================================================
Bsv(Bs) Black.... streaked dwarf Te-tep(CA) 161,299
resistance
Gsv(Gs) Gray stunt resistance O. nivara, IR 107,272
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Vol. 1
asasaB. CURRENT LINKAGE MAPS
A new linkage map of rice based on latest available information
is presented in Fig. 1, with a list of genes of each.... linkage group.
In the review of rice genetics by Yamaguchi (1927), only four
linkage groups, each consisting of two genes, were reported. Jodon (1948) reported
on eight linkage groups involving.... nearly 50 genes. Since then, information on
the location of different genes has accumulated in both the Indica and Japonica
rices. In 1963, Nagao and Takahashi first proposed twelve linkage groups
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Rice Genetics Newsletter, Vol. 24
1. Restoration of pollen and spikelet fertility in Swarna x O. nivara backcross derivatives
B. P. M. SWAMY, K. KALADHAR.... , N. SARLA, M. S. RAMESHA, N. S. RANI and B. C. VIRAKTAMATH
Directorate of Rice Research, Rajendranagar, Hyderabad 500030 India
* nsarla@drricar.org
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Vol. 1
6. Leaf and culm
==============================================================================
Gene Character Linkage* Chro- Strain.... Reference
symbol group mosome (Institution)
==============================================================================
bc-1 brittle culm-1 XI 5 H-9(HK.... ), HO 702 67,94,
Kamairazu(KY) 172
bc-2 brittle culm-2 M-5 Norin 287
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Vol. 1
3. Dwarfness
==============================================================================
Gene Character Linkage* Chro- Strain.... Reference
symbol group mosome (Institution)
==============================================================================
d-1 daikoku dwarf VI+IX 2 A-23.... Daikoku 2,66,
(small round (HK), HO 532 166,172
grain) Daikoku(KY)
d-2 ebisu dwarf II
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Vol. 1
4. Spikelet or grain
==============================================================================
Gene Character Linkage* Chro.... - Strain Reference
symbol group mosome (Institution)
==============================================================================
alk alkali degeneration I.... 6 most of japonica 140
(treated with 1.7%
KOH)
=============================================================================
An-1 Awn-1-3 II
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Vol. 1
8. Sterility
==============================================================================
Gene Character Linkage* Chro- Strain.... Reference
symbol group mosome (Institution)
==============================================================================
as asynapsis.... 102,103,
189
cps compact panicle N-22 Mitsuryu- 166,281
sterile
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Vol. 1
2. Chlorophyll aberration
==============================================================================
Gene Character Linkage* Chro.... - Strain Reference
symbol group mosome (Institution)
==============================================================================
al-1 albino-1 I.... 6 Al 9 Norin 72
(al-K-1) 8 muant(KY)
al-2 albino-2 VI+IX 2 Al 12 do. 72
(al-K-2
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Vol. 1
14. Isozymes
==============================================================================
Gene Character Linkage* Chro- Strain.... Reference
symbol group mosome (Institution)
==============================================================================
Acp-1-17 Acid phosphatasa-1 AMC W1236.... (GI) 29,30,
(Acp-B) band-group((-17mm) 207,209,
227,243
Acp-1-9 do.(-9mm
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Vol. 1
5. Panicle
==============================================================================
Gene Character Linkage* Chro- Strain.... Reference
symbol group mosome (Institution)
==============================================================================
Bp Burlush-like panicle VII 1 HO 551.... 68
Mansakuhen(KY)
Cl Clusterd spikelets I 6 L-16 Clustered(HK) 67,88
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Vol. 1
13. Insect resistance
==============================================================================
Gene Character Linkage* Chro.... - Strain Reference
symbol group mosome (Institution)
==============================================================================
Bph-1 Brown planthopper.... II 11 Saikai PL 3,4 7,58,
resistance-1 (KA) IR1539-823 59,263
(IR)
bph-2 brown
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Vol. 1
7. Heading date
==============================================================================
Gene Character Linkage* Chro- Strain.... Reference
symbol group mosome (Institution)
==============================================================================
E-1 Late heading-1 EG.... 1,4,6,7(KT) 106,201,
273,274
E-2 Late heading-2 EG 2,4,5,7(KT) 106,274
E-3 Late
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D. LIST OF PUBLICATIONS
Vol. 1
D. LIST OF PUBLICATIONS
1. Genic analysis (*Linkage
map presented)
1. Adachi, T. 1935. Dwarfness and leafy head newly.... found in
rice. Agric. & Hort. 10: 1048-1050. (in Japanese)
2. Akemine, M. 1925. On the inheritance of dwarf habits in
rice. Proc. Japan. Assoc. Adv.Sci. 1: 308-314.
3. Amemiya, A. and H.... . Akemine 1963. Biochemical genetic studies
on the root growth inhibiting complementary lethal genes on rice plant. Bull.
Nat. Inst. Agr. Sci. Ser. D 10: 139-226.
4. Angeles, R. R., G. S. Khush
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2. Publications on Rice Genetics, 1981-1984
Vol. 1
2. Publications on Rice Genetics, 1981-1984
(not including papers on genic analysis)
1. Acharya, S.... . and K. D. Sharma 1983. Genetics of cold tolerance
at rice reproductive stage. Int. Rice Res. Newsl. 8: 10-11.
2. Ahn, S. W. and S. H. Ou 1982. Quantitative resistance of
rice to blast disease.... . Phytopathology 72: 279-282.
3. Ahuja, S. C., S. S. Malik, U. S. Ahuja and C. V. S. Malik
1981. Varietal response to bacterial blight and stem rot under artificial epiphytotic
conditions. Int. Rice Res
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Vol. 1
F. Mailing List
Afghanistan
Mishra, R. N.
ITEC Expert, Embassy of India
Kabul
Africa
Abifarin, A. O.
WARDA
P.O. BOX 1019, Monrovia, Liberia....
Bezanqon, Gilles
Laboratoire, de Genetique, ORSTOM
BP V51, Abidjan, Ivory Coast
Charrier, Andre
Laboratoire de Genetique, ORSTOM
BP V51, Abidian, Ivory Coast
Choudhury, M. A.
WARDA
BP 2551, Bouake.... , Ivory Coast
Ghesquiere, Alain
Laboratoire de Genetique, ORSTOM
BP V51, Abidjan, Ivory Coast
Gibbons, James
IITA
PMB 5320, Ibadan, Nigeria
Goli, Koffi
IDESSA
BP 635, Bouake, Ivory Coast
Jones
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List of isogenic lines
Vol. 1
List of isogenic lines
1. Isogenic lines of `Shiokari' for dwarf genes....
==============================================================================
Gene Name of dwarf Linkage Chromo- Strain and Dwarf
symbol groups some backcrosses donor....
==============================================================================
d-1 daikoku dwarf VI+IX 2 ID-1,B11 H-86(HK)
d-2 ebisu dwarf II 11 ID-2,B9 H-85(HK)
d-3,4,5 bunketsu-waito dwarf II,I,X 11,6,8
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DEDICATION
Vol. 1
DEDICATION
The first volume of the
Rice Genetics Newsletter is dedicated to: the late Dr. T. Morinaga, Dr. K. Ramiah,
Dr. N. E. Jodon.... , and Dr. S. Nagao
T. Morinaga
K. Ramiah
N. E. Jodon
S. Nagao
The late Dr. T. Morinaga
Toshitaro Morinaga was born on September 13, 1985 at Uozu.... , Toyama, Japan,
and graduated from the College of Agriculture, Tokyo Imperial University in
1919. He was an outstanding geneti cist and plant breeder who made major contributions
to our
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FOREWORD
Vol. 1
FOREWORD
The standardization of gene symbols for rice was first proposed
by Dr. K. Ramiah during the World War II. The sixth meeting.... of the International
Rice Commission (IRC), held in 1955, strongly recommended standardizing gene
symbols and appointed a committee consisting of Mr. N. E. Jodon, Dr. N. Parthasarathy,
and Dr. S. Nagao.... to formulate rules for gene symbolization in rice. Later, the
10th International Congress of Genetics held in 1958 at Montreal, Canada published
the Report of the International Committe on Gene Symbols
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Vol. 1
List of translocation lines
==============================================================================
Inter- Strain No. Institu- Source.... Reference
changed tion
chromosome
==============================================================================
1 - 2 RT1 KY Okute-Asashi. X-15 190....
" RT1-2, T65 RY "
1 - 3a RT2 KY Norin 8. 1-15.0 190
" RT1-3a, T65 RY "
1 - 3b RT3 KY Norin8. 1581
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Vol. 1
List of primary trisomics
====================================================================
Extra Type Name Strain.... Original
Chro- cultivar
mosome
====================================================================
1 H Large grain T15, T16.... Asakaze
NT8314, NT8315 Nipponbare
KT8301 Kinmaze
2 L Short panicle T23 Norin 8
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Vol. 1
9. Gametophyte genes (Low fertilization capacity of male gametes)
==============================================================================
Gene.... Character Linkage* Chro- Strain Reference
symbol group mosome (Institution.... )
==============================================================================
ga-1 gametophyte gene-1 I 6 Atomic bombed 75
rice(KY)
ga-2 gametophyte gene-2 XI 6 Most of japonica
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3. Semidwarfing genes in rice germplasm collection
Vol. 1
3. Semidwarfing genes in rice germplasm collection
T. T. CHANG, Carina ZURO, Angelita.... MARCIANO-ROMENA and Genoveva
C. LORESTO
International Rice Research Institute, P.O. Box 933, Manila,
Philippines
A single recessive gene (sd1) from 3 independent
Chinese sources-Dee-geo-woo-gen.... , Ai-jiao-nan-te and Ai-zai-zhan, has led to
the development of semidwarf rice varieties in Taiwan and mainland China, several
Asian Countries, and at IRRI. This gene has lent great impetus to rice production
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2. Semidwarfing genes of high-yielding rice varieties in Japan
Vol. 1
2. Semidwarfing genes of high-yielding rice varieties in Japan
Fumio KIKUCHI1.... and Hiroshi IKEHASHI2
1) Institute of Agriculture and Forestry, University of Tsukuba,
Sakura-mura, lbaraki, 305, and
2) Okinawa Branch, Tropical Agriculture Research Center, Ishigaki,
Okinawa.... , 907-01 Japan
Two distinct sources of semidwarfism have contributed to a
break-through in the yield level of rice in 1960's in Japan. They are Reimei,
a mutant induced from Fujiminori in northern
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4. Establishment of differential varieties for pathogenicity test of rice blast fungus::
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4. Establishment of differential varieties for pathogenicity test of rice blast fungus
Vol. 1
4. Establishment of differential varieties for pathogenicity....
test of rice blast fungus
Shigehisa KIYOSAWA
National Institute of Agrobiological Resources, Yatabe, Tsukuba,
Ibaraki, 305 Japan
Varieties with different single resistance genes are ideal....
differential varieties for pathogenicity test of the pathogen (Flor 1945). In
Japan, the first differential varieties for rice blast were chosen by Goto and
co-workers (1961, 1964). Yamasaki and Kiyosawa
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7. Genic analysis for resistance to brown planthoppers in rice
Vol. 1
7. Genic analysis for resistance to brown planthoppers in
rice
Ryoichi IKEDA1.... and Chukichi KANEDA2
1) Tohoku Natl. Agric. Exp. Station, Omagari, Akita, 014-01,
and
2) Agric. Fores. Fish. Res. Council Secretary, MAFF, 1-2-1
Kasumigaseki, Chiyoda-ku, Tokyo, 100 Japan....
The brown planthopper, Nilaparvata lugens Stal. (abbr.
BPH), is one of most serious pests of rice throughout Asia. The inheritance
of BPH resistance has been investigated by many workers since Athwal et
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8. Heading-time genes of rice, E1, E2 and E3
Vol. 1
8. Heading-time genes of rice, E1, E2 and E3
H.YAMAGATA
Faculty of Agriculture, Kyoto University.... , Kitashirakawa, Sakyo-ku,
Kyoto, 606 Japan
The three heading-time genes, E1, E2,
and E3, independent of one another and delaying the heading
time of rice, were detected 30 years ago through.... the intercrosses among three
varieties, Gimbozu, Aikoku and Kyotoasahi (Syakudo et al. 1954; Kawase 1961).
From those varieties and intercrosses, seven lines possessing different genotypes
for the three
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1. Induced semidwarf mutants
Vol. 1
1. Induced semidwarf mutants
J. Neil RUTGER
U.S.D.A. Agric. Research Service and Agronomy and Range Science....
Department, University of California, Davis, CA 95616, U.S.A.
In the last 14 years several semidwarf mutants have been induced
in rice cultivars in California. The most useful mutant was released.... in 1976
as the semidwarf cultivar Calrose 76. It originated as a single gene semidwarf
mutant from the very well-adapted tall cultivar Calrose. Genetic studies showed
that Calrose 76 possessed
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5. Multiple alleles at the Xa-1 and Xa-kg loci for resistance to bacterial
leaf blight::
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5. Multiple alleles at the Xa-1 and Xa-kg loci for resistance to bacterial
leaf blight
Vol. 1
5. Multiple alleles at the Xa-1 and Xa-kg loci for resistance....
to bacterial leaf blight
Toshiaki YAMADA
National Agric. Research Center, Yatabe, Tsukuba, lbaraki,
305 Japan
The mode of resistance and allelic relationships of genes for
the resistance.... to bacterial leaf blight, caused by Xanthomonas campestris
pv. Oryzae (Ishiyama 1922) Dye 1978, were investigated in a Japanese
(Kogyoku) and three IRRI varieties (IR28, IR29 and IR30). The IRRI varieties
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10. Genetics of fertility restoration and biochemical basis of male
sterility-fertility restoration system in rice::
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10. Genetics of fertility restoration and biochemical basis of male
sterility-fertility restoration system in rice
Vol. 1
10. Genetics of fertility restoration.... and biochemical basis
of male sterility-fertility restoration system in rice
K. Govinda RAJ1 and E. A. SIDDIQ2
1) Plant Breeding Dept., International Rice Research Institute,
P.O. Box 933 Manila.... , Philippines, and
2) Agricultual Research Centre, Saka, Kufr-El Sheikh, Egypt
Inheritance of fertility restoration was studied in F2's
of ten crosses of the Chinese male sterile lines, viz., Zhen Shan
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6. Chromosomal location of Xa4 gene
Vol. 1
6. Chromosomal location of Xa4 gene
S. C. SUR and G. S. KHUSH
International Rice Research Institute, P.O.... . Box 933, Manila,
Philippines
A dominant gene for resistance to bacterial blight of rice
was identified by Petpisit et al. (1977) and it was designated Xa4.
This gene gives resistance.... to bacterial blight at all stages of plant growth
and has been widely used in the breedling program (Khush 1981). In fact all
the bacterial blight resistant IR varieties are homozygous for Xa4
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12. Geographical distribution of the genes for black hull coloration
Vol. 1
12. Geographical distribution of the genes for black hull
coloration
Masahiko.... MAEKAWA
Experimental Farm, Faculty of Agriculture, Hokkaido University,
Sapporo, 060 Japan
The F1 plants of crosses between distantly related
rice varieties, as well as the wild relatives.... of cultivated rice, often show
black hull coloration. It was reported that the black hull coloration was controlled
by one dominant gene (Kuang et al. 1946; Jodon 1964), or two complementary genes
(Chao
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13. The genetic basis of hybrid chlorosis found in a cross between two
Japanese native cultivars::
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13. The genetic basis of hybrid chlorosis found in a cross between two
Japanese native cultivars
Vol. 1
13. The genetic basis of hybrid chlorosis found.... in a cross
between two Japanese native cultivars
Y. I. SATO1, S. MATSUURA2 and K. HAYASHI2
1) National Institute of Genetics, Misima, 411 Japan and
2) Faculty of Agriculture, Kochi University.... , Nankoku, Kochi,
783 Japan
We incidentally found a case of hybrid chlorosis in the F2
population of a cross between two Japanese native cultivars, J-147 and J-321.
Its first symptom was a change
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18. Linkage relationship of long palea in rice
Vol. 1
18. Linkage relationship of long palea in rice
R.THAKUR
Rajendra Agricultural University, Bihar.... Agric. College, Sabour,
Bhagalpur, India
Rao and Misro (1968) reported a floral variant of rice, long
palea, where palea invariably outgrows the lemma. It was found to be due to
dominant.... complementary genes. The second report on the occurrence of long palea
was by the author (Thakur 1971). In an F2 of a cross between two
normal palea varieties, Ac 1224 and 7107 (a marker type, received from
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17. Inheritance of reduced culm number type and its character expression::
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17. Inheritance of reduced culm number type and its character expression
Vol. 1
17. Inheritance of reduced culm number type and its character
expression....
Toshiro KINOSHITA
Plant Breeding Institute, Faculty of Agriculture, Hokkaido
University, Sapporo, 060 Japan
A mutant with a reduced culm number was found in the progenies
of AC-11 (strain.... regenerated from A-5 Akamuro by anther culture) irradiated
by gamma rays. In the F2 population of its cross with the original
strain, A-5 Akamuro, it was demonstrated that a single recessive gene, rcn
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9. Inheritance of fertility restoration in a rice cross
Vol. 1
9. Inheritance of fertility restoration in a rice cross
J.B. YOUNG1 and S.S. VIRMANI2....
1) Rice and Wheat Institute, Fujian Academy of Agric. Sciences,
Fuzhow, Fujian Province, Peoples Republic of China and
2) Intenational Rice Research Institute, P.O. Box 933, Manila.... ,
Philippines
IR54, a rice variety developed at IRRI and released in 1980,
was identified as an effective restorer of cytoplasmic genetic male sterile
lines (viz., Zhen Shan 97A, V20A, V41A) possessing
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15. A. "Fish-hook" mutation in rice
Vol. 1
15. A. "Fish-hook" mutation in rice
Nelson E. JODON
Rice Research Station, Crowley, Louisiana 70527-1429.... , U.S.A.
A striking recurved and sharply pointed modification of the
lemma appeared uniformly in an F5 dwarf line. "Hooked", "parrot beaked"
and "claw shaped" lemmas have been reported, but this.... is perhaps more extreme.
The lemma tips will hook into clothing and support an entire panicle. This mutation
could function for seed dispersal in wild rice. It would be a useful genetic
marker
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11. A probable new male sterile line with cytoplasm from a Boro rice of Uttar
Pradesh, India::
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11. A probable new male sterile line with cytoplasm from a Boro rice of Uttar
Pradesh, India
Vol. 1
11. A probable new male sterile line with cytoplasm from.... a
Boro rice of Uttar Pradesh, India
R. C. CHAUDHARY and V. N. SAHAI
Rejendra Agricultural University, Agric, Research Institute,
Mithapur, Patna, India
In search of the alternative sources.... of sterile cytoplasm,
51 direct and reciprocal crosses were made at IRRI with 16 advanced breeding
lines of IRRI and 23 indical/japaonica derivatives from Korean rice
breeding program in 1980. Most
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16. A big-grain gene, Lk-f, found in a Japanese local variety "Fusayoshi" and
its character expression::
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16. A big-grain gene, Lk-f, found in a Japanese local variety "Fusayoshi" and
its character expression
Vol. 1
16. A big-grain gene, Lk-f, found in a Japanese.... local
variety "Fusayoshi" and its character expression
Kazuyoshi TAKEDA
Institue for Agricultural and Biological Sciences, Okayama
University, Kurashiki, 710 Japan
The grain size of rice.... is usually controlled by polygenes.
As an exceptional case, a major gene controlling spikelet length was found in
Japanese native variety, Fusayoshi. This variety had a kernel (brown rice) length
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14. Inheritance of two anatomical characteristics
Vol. 1
14. Inheritance of two anatomical characteristics
M. SETHI and J. K. ROY1
Central Rice.... Research Institute, Cuttack, Orissa, 753006, India
An extra sclerenchymatous band is found in the stem of some
special rice varietites but not in others. Two rice varieties FR13A and Intan
have.... such bands. Its occurrence was investigated in four crosses between varieties
having the band and those lacking the band (Ratna, Jana, CRM 13 named 'Sattari').
The main stems from five F1 and 100 F2
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25. Unusual segregation patterns found at the m-Ef locus
Vol. 1
25. Unusual segregation patterns found at the m-Ef
locus
Kuo-Hai TSAI
Department.... of Agronomy, National Chung Hsing University, Taichung, Taiwan
400, ROC
An early flowering isogenic line of T65 (Taichung 65) with gene Ef-1a
(formerly symbolized Ea, a hereinafter abbreviated as Ea.... ),
T65(7)Ea, was obtained from recurrent backrosses (7 times) of T65
with a native variety from northern China, Tatung-tsailai, used as the donor
parent (Tsai 1961; Tsai and Oka 1965). Three isogenic
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22. Mutant genes controlling starch synthesis in rice endosperms
Vol. 1
22. Mutant genes controlling starch synthesis in rice endosperms
Kazutoshi OKUNO1.... and Masahiro YANO2
1) Hokuriku Natl. Agric. Exp. Station, Joetsu, Niigata, 943-01,
and
2) Faculty of Agriculture, Kyushu University, Hakozaki, Fukuoka,
812 Japan
Starch is generally composed.... of two kinds of polysaccaride,
amylose and amylopectin. In rice, genes controlling the proportion of amylose
to amylopectin have not been identified although the wx is known to
suppress amylose
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23.Endosperm mutants of rice induced by N-methyl-N-nitrosourea treatment of
fertilized egg cells::
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23.Endosperm mutants of rice induced by N-methyl-N-nitrosourea treatment of
fertilized egg cells
Vol. 1
23.Endosperm mutants of rice induced.... by N-methyl-N-nitrosourea
treatment of fertilized egg cells
Hikaru SATOH, Masahiro YANO and Takeshi OMURA
Plant Breeding Laboratory, Faculty of Agriculture, Kyushu University,
Hakozaki, Fukuoka, 812 Japan....
Several kinds of induced mutants for embryo or endosperm properties
have been reported in rice recentry (Toda 1979; Amano 1981; Satoh and Omura
1981; Okuno et al. 1983; Yano et al. 1984). We maintain
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21. Search for new g loci unfruitful
Vol. 1
21. Search for new g loci unfruitful
Gurdev S. KHUSH and A. L. LIBROJO
International Rice Research.... Institiute, P.O. Box 933, Manila,
Philippines
The recessive mutant g of rice, which conditions long
empty glumes instead of rudimentary glumes of the grain, is a very useful marker
of linkage.... group IV. Many rice varieties in our germplasm bank have long empty
glumes. In search of new loci, conditioning long empty glumes, we studied the
allelic relationships of the genes for long glumes
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