1996 Fiscal Year Annual Research Report

高等植物における雌雄の分化・受粉過程の遺伝解剖的吟味

Research Project

Project/Area Number	07281102
Research Institution	Tohoku University
Principal Investigator	日向康吉東北大学, 農学部, 教授 (00005589)
Co-Investigator(Kenkyū-buntansha)	長戸康郎東京大学, 大学院農学生命科学, 教授 (10143413) 鎌田博筑波大学, 生物, 教授 (00169608) 鳥山欽哉東北大学, 農学部, 助教授 (20183882) 米田好文北海道大学, 学院理学研究科, 教授 (10124215) 磯貝彰奈良先端科学技術大学院大学, バイオ, 教授 (20011992)
Keywords	高等植物 / 雌雄性 / 受粉 / 受精 / 花粉 / 花 / 自家不和合性 / 胚
Research Abstract	研究目的:高等植物における雌雄両性の分化・成熟過程と受粉・受精過程の2つに焦点を絞り、それらに関する遺伝子を解剖吟味し、植物の有性生殖機構の解明を目指している。研究成果の概要:特に注目すべき研究成果は以下の通りである。(1)RAPD法やYACを利用した性染色体の解析、(2)イネやシロイヌナズナの突然変異体を利用した花器官の形成機構の解明、(3)減数分裂特異的遺伝子の解析、(4)花粉アレルゲン遺伝子など花粉成熟に関わる遺伝子の解析、(5)ミトコンドリア遺伝子の花粉形成時に注目した雄性不稔性の機構解明、(6)アブラナ科自家不和合性に関するS多重遺伝子のクローニングとアンチセンス遺伝子導入による機能推定、および、FISHによるゲノム構造の解析。(7)S-RNase型自家不和合性に関与するS-RNaseのX線結晶解析、(8)サツマイモやユリの自家不和合性の解析、(9)イネの突然変異体を用いた初期胚発生の解析、(10)ニンジン培養細胞の不定胚を用いた初期胚発生の解析、既に多くの成果が得られており、128報の論文を発表している。研究組織と研究班の連携状況:2回の総括班会議を開催し、研究の進展状況を詳細に検討した。News and Viewsを9号まで発刊して情報の伝達に務める一方、A班とB班の合同研究会を2回、また、合同シンポジウム、学会の際のシンポジウム、ワークショップ、若手研究者の会を各1回開催して、各研究の促進と交流を深めた。研究者間の共同研究がいろいろな形で進行している。また、前年度「ディファレンシャルディスプレーに関するワークショップ」を開催したが、これを利用した研究成果が本年度数件報告され、総括班の企画が研究の発展に反映されている。

Research Products
(15 results)

All Other

All Publications (15 results)

[Publications] Nishio, T., Kusaba, M.,Watanabe, M. and Hinata, K: "Registration of S alleles in Brassica campestris L. by the restriction fragments of SLGs" Theor. Appl. Genet. 92. 388-394 (1996)
[Publications] Suzuki, G., Watanabe, M., Toriyama, K., Isogai, A., Hinata, K.: "Expression of SLG9 and SRK9 genes in transgenic tobacco." Plant Cell Physiol. 37. 866-869 (1996)
[Publications] Matsushita, M., Watanabe, M., et al, Isogai, A., and Hinata, K.: "The SLG24 of the same S24-allele at different places are perfectly conserved in self-incompatible Brassica camprestris L" Genes Genet. Syst. 71. 255-259 (1996)
[Publications] Higashi, K., Kamada, H. and Harada, H.: "The effects of reduced nitrogenous compounds suggests that glutamine synthetase activity is involved in the development of somatic embryos in carrot" Plant Cell Tissue Organ Culture. 45. 109-114 (1996)
[Publications] Yang, H., Saitou, T., Komeda, Y., Harada, H. and Kamada, H.: "LEA protein in Arabidopsis thaliana homologous to carrot ECP31." Physiol. Plant.98. 661-666 (1996)
[Publications] Yang, H., Saitou, T., Komeda, Y., Harada, H. and Kamada, H.: "AtECP63 cDNA that encodes a LEA protein belonging to group 3 is located on chromosome 4 of Arabidopsis thaliana (L) Heynh." Gene. 184. 83-88 (1996)
[Publications] Torii et al, komeda: "The Arabidopsis ERECTA gene encodes a putative receptor protein kinase with extracellular leucine-rich repeats." Plant Cell. 8. 735-735 (1996)
[Publications] Suzuki et al, Komeda: "Structural and functional characterization of the intergenic spacer region of the rDNA in Daucus carota." Plant Cell Physiol.37・2. 233-238 (1996)
[Publications] Nagasawaetal, Nagato: "Mutations associated with floral organ number in rice." Planta. 198. 627-633 (1996)
[Publications] Matsuda et al, Toriyama: "Partial male steriliWy in transgenic tobacco carrying antisense and sense PAL cDNA under the control of tapetum-specific promoter" Plant Cell Physiol. 37. 215-222 (1996)
[Publications] Kitasiba et al, Toriyama: "Identification of genes expressed in the shoot apex of Brassica campestris during floral transition" Sex. Plant Reprod. 15. 727-730 (1996)
[Publications] Kubo, T. and Mikami, T.: "A duplicated sequence in sugarbeet mitochondrial transcripts is differentially edited : analysis of orfB and its derivative orf324 mRNAs." Biochimica et Biophysica Acta. 1307. 259-262 (1996)
[Publications] Hong, S-K., Kitano, H., Satoh, H. and Nagato, Y.: "How is embryo size genetically regulated in rice ?" Development. 122. 2051-2058 (1996)
[Publications] Sato Y., Kitano, H., Nagato, Y. et al: "A rice homeobox gene, OSH1, is expressed prior to organ differentation in a specific region during early embryogenesis." Proc. Natl. Acad. Sci. USA. 93. 8117-8122 (1996)
[Publications] Ono, M., Kamada, H. Harada, H. et al: "Transient increase in the level of mRWA for a germin-like protein in leaves of the short-day plant Pharbitis nil during the photoperiodic induction of flowering" Plant Cell Physiol. 37. 855-861 (1996)

1996 Fiscal Year Annual Research Report

高等植物における雌雄の分化・受粉過程の遺伝解剖的吟味

Principal Investigator

日向 康吉 東北大学, 農学部, 教授 (00005589)

Research Products

[Publications] Nishio, T., Kusaba, M.,Watanabe, M. and Hinata, K: "Registration of S alleles in Brassica campestris L. by the restriction fragments of SLGs" Theor. Appl. Genet. 92. 388-394 (1996)

[Publications] Suzuki, G., Watanabe, M., Toriyama, K., Isogai, A., Hinata, K.: "Expression of SLG9 and SRK9 genes in transgenic tobacco." Plant Cell Physiol. 37. 866-869 (1996)

[Publications] Matsushita, M., Watanabe, M., et al, Isogai, A., and Hinata, K.: "The SLG24 of the same S24-allele at different places are perfectly conserved in self-incompatible Brassica camprestris L" Genes Genet. Syst. 71. 255-259 (1996)

[Publications] Higashi, K., Kamada, H. and Harada, H.: "The effects of reduced nitrogenous compounds suggests that glutamine synthetase activity is involved in the development of somatic embryos in carrot" Plant Cell Tissue Organ Culture. 45. 109-114 (1996)

[Publications] Yang, H., Saitou, T., Komeda, Y., Harada, H. and Kamada, H.: "LEA protein in Arabidopsis thaliana homologous to carrot ECP31." Physiol. Plant.98. 661-666 (1996)

[Publications] Yang, H., Saitou, T., Komeda, Y., Harada, H. and Kamada, H.: "AtECP63 cDNA that encodes a LEA protein belonging to group 3 is located on chromosome 4 of Arabidopsis thaliana (L) Heynh." Gene. 184. 83-88 (1996)

[Publications] Torii et al, komeda: "The Arabidopsis ERECTA gene encodes a putative receptor protein kinase with extracellular leucine-rich repeats." Plant Cell. 8. 735-735 (1996)

[Publications] Suzuki et al, Komeda: "Structural and functional characterization of the intergenic spacer region of the rDNA in Daucus carota." Plant Cell Physiol.37・2. 233-238 (1996)

[Publications] Nagasawaetal, Nagato: "Mutations associated with floral organ number in rice." Planta. 198. 627-633 (1996)

[Publications] Matsuda et al, Toriyama: "Partial male steriliWy in transgenic tobacco carrying antisense and sense PAL cDNA under the control of tapetum-specific promoter" Plant Cell Physiol. 37. 215-222 (1996)

[Publications] Kitasiba et al, Toriyama: "Identification of genes expressed in the shoot apex of Brassica campestris during floral transition" Sex. Plant Reprod. 15. 727-730 (1996)

[Publications] Kubo, T. and Mikami, T.: "A duplicated sequence in sugarbeet mitochondrial transcripts is differentially edited : analysis of orfB and its derivative orf324 mRNAs." Biochimica et Biophysica Acta. 1307. 259-262 (1996)

[Publications] Hong, S-K., Kitano, H., Satoh, H. and Nagato, Y.: "How is embryo size genetically regulated in rice ?" Development. 122. 2051-2058 (1996)

[Publications] Sato Y., Kitano, H., Nagato, Y. et al: "A rice homeobox gene, OSH1, is expressed prior to organ differentation in a specific region during early embryogenesis." Proc. Natl. Acad. Sci. USA. 93. 8117-8122 (1996)

[Publications] Ono, M., Kamada, H. Harada, H. et al: "Transient increase in the level of mRWA for a germin-like protein in leaves of the short-day plant Pharbitis nil during the photoperiodic induction of flowering" Plant Cell Physiol. 37. 855-861 (1996)

日向康吉東北大学, 農学部, 教授 (00005589)