イオン育種研究開発室

研究室プロフィール

重イオンの種類・エネルギー・粒子数を精密に制御し、目的とする遺伝子や染色体領域に応じた変異を誘発するテーラーメイド型品種改良技術を開発しています。さらに、重イオンにより生じる染色体再編成とエピゲノム変化の関係を解析し、ゲノム機能や表現型変化の理解を目指します。本研究室で培われてきた品種改良の実績を基盤として、基礎研究と応用育種を往還させ、新たな育種原理の確立を目指します。

主要論文

「*」は、理研外のみでの成果です。
1. Ikoma T, Nishijima R, Ikeda M, Ishii K, Nagalla AD, Abe T, Kazama Y
   "Effect of heterozygous deletions on phenotypic changes and dosage compensation in Arabidopsis thaliana"
   Scientific Reports 15:14284 (2025)
2. *Mayuzumi T, Morizumi S, Ikeda M, Matsunaga S, Kazama Y
   "Mutation in OPR3 ortholog affects stamen function but not petal size in Torenia fournieri"
   Cytologia 90, 187-194 (2025)
3. Ishii K, Kazama Y, Hirano T, Fawcett JA, Sato M, Hirai MY, Sakai F, Shirakawa Y, Ohbu S, Abe T
   "Genomic view of heavy-ion-induced deletions associated with the distribution of essential genes in Arabidopsis thaliana"
   Frontiers in Plant Science 15:1352564 (2024)
4. Sanjaya A, Nishijima R, Fujii Y, Asano M, Ishii K, Kazama Y, Abe T, Fujiwara MT
   "Rare occurrence of cryptic 5′ splice sites caused by downstream 3′ splice site/exon boundary mutations in a heavy-ion-induced egy1-4 allele of Arabidopsis thaliana"
   Frontiers in Plant Science 15:1388040 (2024)
5. *Kazama Y, Kobayashi T, Filatov DA
   "Evolution of sex determination in dioecious plants: From active Y to X/A balance?"
   BioEssays 45:2300111 (2023)
6. Yue J, Krasovec M, Kazama Y, Zhang X, Xie W, Zhang S, Xu X, Kan B, Ming R, Filatov DA
   "The origin and evolution of sex chromosomes revealed by sequencing of the Silene latifolia female genome"
   Current Biology 33, 2504-2514 (2023)
7. *Sanjaya A, Kobayashi T, Shinoyama H, Nishijima R, Kazama Y
   "Developmental differences between hermaphrodite and female-like flowers in a non-model horticultural plant Dianthus hybrida"
   Cytologia 88, 265-272 (2023)
8. Kazama Y, Kitoh M, Kobayashi T, Ishii K, Krasovec M, Yasui Y, Abe T, Kawano S, Filatov DA
   "A CLAVATA3-like gene acts as a gynoecium suppression function in White campion"
   Molecular Biology and Evolution 39:msac195 (2022)
9. Krasovec M, Kazama Y, Ishii K, Abe T, Filatov DA
   "Immediate dosage compensation is triggered by deletion of Y-linked genes in Silene latifolia"
   Current Biology 29, 2214-2221 (2019)
10. Kazama Y, Ishii K, Hirano T, Wakana T, Yamada M, Ohbu S, Abe T
    "Different mutational effects of low- and high-linear energy transfer heavy-ion irradiation demonstrated by whole genome re-sequencing of Arabidopsis mutants"
    The　Plant Journal 92, 1020-1030 (2017)