Systems breeding: Integration of the pedigree information of Triticeae crop species and the construction for a theoretical framework for discovering new breeding targets

2018 Fiscal Year Final Research Report

• Project/Area Number: 16KT0148
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 特設分野
• Research Field: Food Cycle Research
• Research Institution: Okayama University
• Principal Investigator: Daisuke Saisho 岡山大学, 資源植物科学研究所, 准教授 (90325126)
• Co-Investigator(Kenkyū-buntansha): 甲斐 浩臣 福岡県農林業総合試験場, 農産部, チーム長 (30502413)
• Project Period (FY): 2016-07-19 – 2019-03-31
• Keywords: 遺伝育種学 / 麦類 / 育成系譜

Outline of Final Research Achievements

In order to establish a new theoretical framework of breeding research, we worked on the integration of conventional pedigree information and construction of a theoretical framework for finding further breeding targets. Pedigree information of the Japanese malting barley varieties more than 1,500 varieties, which has a breeding history more than a century, and the track record of joint breed comparison tests conducted by the public and private sectors during 50 years were collected. Moreover, GRAS-Di analysis was performed for ca. 200 representative lines based on the pedigree data, and the implementation base of genome-wide association analysis was established.
The issues addressed in this research contribute to the establishment of a systematic theoretical basis that provides an overview of the breeding history, and the development of a knowledge base that promotes improving the varieties in multiple ways.

Free Research Field

遺伝育種学

Academic Significance and Societal Importance of the Research Achievements

本研究の課題は，過去から現在にわたる品種育成の全体像を俯瞰する体系的な理論基盤の構築と，多角的に品種育成を推進する知識基盤の整備に資するものである．