Gene mining of wheat-related wild species for heat tolerant breeding

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04437
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Science in genetics and breeding
• Research Institution: Tottori University
• Principal Investigator: Tsujimoto Hisashi 鳥取大学, 乾燥地研究センター, 教授 (50183075)
• Co-Investigator(Renkei-kenkyūsha): MATSUOKA Yoshihiro 福井県立大学, 生物資源学部, 准教授 (80264688) ; ELTAYEB H Amin E 鳥取大学, 乾燥地研究センター, 助教 (00624587) ; OKAMOTO Masanori 宇都宮大学, バオサイエンス教育研究センター, 助教 (50455333)
• Research Collaborator: TAHIR Izzat ; GORAFI Yasir ; ELBASIR Awad
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: コムギ / 高温障害 / 地球温暖化 / スーダン / 野生種 / 遺伝資源拡大 / DArTマーカー / GWAS

Outline of Final Research Achievements

The applicant produced "Multiple Synthetic Wheat (MSD) Population" which included intraspecific variation of wheat-related wild species, Aegilops tauschii, in a practical wheat genetic background. The MSD population was cultivated in the heat-stressed field in Agricultural Research Corporation (ARC) in Sudan, and together with the breeders, plants showing vigorous growth were selected. We confirmed that the heat tolerance of these genotypes even under controlled high temperature condition in chambers. Meanwhile, 400 individuals were randomly selected from the MSD population, cultivated in three sites of ARC, and the agronomical traits were measured. In addition, these lines were genotyped with a large numbers of markers. The high-temperature resistant wheat breeding platform constructed in this study is useful for selection and marker assist selection of high temperature tolerant cultivars and for elucidation of high temperature tolerance mechanism.

Free Research Field

植物遺伝育種学