Title:
PLANT BELONGING TO GENUS ORYZA HAVING DOMINANT DWARF TRAIT, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/046403
Kind Code:
A1
Abstract:
A seed or callus of a rice plant is subjected to a mutagenic treatment to regenerate the rice plant, and several dwarf individuals can be produced successively. Then, it is examined whether the dwarf gene is dominant or recessive in the dwarf individuals, and four mutants SLRD1-SLRD4, in which the dwarf trait is inherited dominantly, can be produced. When the four mutants are analyzed on their causative genes for the dwarf trait, it is found that the causative genes of the four mutants are allelic to one another and are induced by a point mutation in Slr1 gene carried on chromosome 4. Mating is performed between each of the four dwarf mutants and a wild-type Indian or Japanese species, and all of the first filial generations (F1) have an incompletely dominant phenotype with respect to plant height and show a semi-dwarf trait. It is demonstrated that a semi-dwarf hybrid rice plant and a dwarf fixed variety of a rice plant can be bred by utilizing the mutant gene.
Inventors:
MATSUOKA MAKOTO (JP)
KITANO HIDEMI (JP)
ASHIKARI MOTOYUKI (JP)
KOMURA TOSHIRO (JP)
SATOH HIKARU (JP)
KITANO HIDEMI (JP)
ASHIKARI MOTOYUKI (JP)
KOMURA TOSHIRO (JP)
SATOH HIKARU (JP)
Application Number:
PCT/JP2006/320717
Publication Date:
April 26, 2007
Filing Date:
October 18, 2006
Export Citation:
Assignee:
UNIV NAGOYA NAT UNIV CORP (JP)
UNIV KYUSHU NAT UNIV CORP (JP)
MATSUOKA MAKOTO (JP)
KITANO HIDEMI (JP)
ASHIKARI MOTOYUKI (JP)
KOMURA TOSHIRO (JP)
SATOH HIKARU (JP)
UNIV KYUSHU NAT UNIV CORP (JP)
MATSUOKA MAKOTO (JP)
KITANO HIDEMI (JP)
ASHIKARI MOTOYUKI (JP)
KOMURA TOSHIRO (JP)
SATOH HIKARU (JP)
International Classes:
C12N15/00; A01H1/00; A01H1/06; A01H5/10; C12N5/10; C12N15/09
Foreign References:
| JP2001514893A | 2001-09-18 |
Other References:
ITOH H. ET AL.: "The Gebberellin signaling pathway is regulated by the appearance and disappearance of SLENDER RICE 1 in nuclei", PLANT CELL, vol. 14, January 2002 (2002-01-01), pages 57 - 70, XP003012010
IKEDA A. ET AL.: "slender Rice, a constitutive Gibberellin response mutant, is caused by a null mutation of the SLR1 gene, an ortholog of the height-regulating gene GA1/RGA/RHT/D8", PLANT CELL, vol. 13, May 2001 (2001-05-01), pages 999 - 1010, XP003012011
DATABASE GENBANK [online] SANO H. ET AL.: "Rice gibberellin-insensitive gene homolog, OsGAI, encodes a nuclear-localized protein capable of gene activation at transcriptional level", XP003012012, Database accession no. (AB030956)
OGAWA T. ET AL.: "Rice gibberellin-insensitive gene homolog, OsGA1, encodes a nuclear-localized protein capable of gene activation at transcriptional level", GENE, vol. 245, 2000, pages 21 - 29, XP004202957
KURAUCHI N. ET AL.: "Induction of a dominant semidwarf mutant in barley", JAPANESE JOURNAL OF TROPICAL AGRICULTURE, vol. 42, no. 4, 1998, pages 235 - 241, XP003012013
MUANGPROM A. ET AL.: "A novel dwarfing mutation in a green revolution gene from Brassica rapa", PLANT PHYSIOL., vol. 137, March 2005 (2005-03-01), pages 931 - 938, XP003012014
PENG J. ET AL.: "'Green revolution' genes encode mutant gibberellin response modulators", NATURE, vol. 400, 15 July 1999 (1999-07-15), pages 256 - 261, XP002283524
HEDDEN P.: "The genes of the Green Revolution", TRENDS GENET., vol. 19, no. 1, January 2003 (2003-01-01), pages 5 - 9, XP004398850
IKEDA A. ET AL.: "slender Rice, a constitutive Gibberellin response mutant, is caused by a null mutation of the SLR1 gene, an ortholog of the height-regulating gene GA1/RGA/RHT/D8", PLANT CELL, vol. 13, May 2001 (2001-05-01), pages 999 - 1010, XP003012011
DATABASE GENBANK [online] SANO H. ET AL.: "Rice gibberellin-insensitive gene homolog, OsGAI, encodes a nuclear-localized protein capable of gene activation at transcriptional level", XP003012012, Database accession no. (AB030956)
OGAWA T. ET AL.: "Rice gibberellin-insensitive gene homolog, OsGA1, encodes a nuclear-localized protein capable of gene activation at transcriptional level", GENE, vol. 245, 2000, pages 21 - 29, XP004202957
KURAUCHI N. ET AL.: "Induction of a dominant semidwarf mutant in barley", JAPANESE JOURNAL OF TROPICAL AGRICULTURE, vol. 42, no. 4, 1998, pages 235 - 241, XP003012013
MUANGPROM A. ET AL.: "A novel dwarfing mutation in a green revolution gene from Brassica rapa", PLANT PHYSIOL., vol. 137, March 2005 (2005-03-01), pages 931 - 938, XP003012014
PENG J. ET AL.: "'Green revolution' genes encode mutant gibberellin response modulators", NATURE, vol. 400, 15 July 1999 (1999-07-15), pages 256 - 261, XP002283524
HEDDEN P.: "The genes of the Green Revolution", TRENDS GENET., vol. 19, no. 1, January 2003 (2003-01-01), pages 5 - 9, XP004398850
Attorney, Agent or Firm:
SHIMIZU, Hatsushi et al. (1-1-1 Oroshi-machi, Tsuchiura-sh, Ibaraki 47, JP)
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