Suppression of seed coat pigmented phenomena in yellow soybean cultivar being tolerant to cold-induced discoloration

2014 Fiscal Year Final Research Report

• Project/Area Number: 24580002
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Breeding science
• Research Institution: Hirosaki University
• Principal Investigator: SENDA Mineo 弘前大学, 農学生命科学部, 教授 (30261457)
• Co-Investigator(Kenkyū-buntansha): SANO Teruo 弘前大学, 農学生命科学部, 教授 (30142699)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 黄ダイズ / 種皮着色 / CHS遺伝子 / RNA干渉 / ウイルス / 褐斑 / 低温着色 / 抵抗性品種

Outline of Final Research Achievements

Yellow soybean shows yellow color due to suppression of seed coat pigmentation. Sometimes in the seed production of yellow soybean cultivars, seeds are pigmented by virus infections or low temperatures. These seed coat pigmentation phenomena, which reduce seed commodity value, are called "seed mottling" and "cold-induced discoloration (CD)", respectively. In this study, we investigated whether a highly CD-tolerant cultivar Toyoharuka is also tolerant to the seed mottling. As a result, cv.Toyoharuka was shown to diminish the extent of SMV seed mottling as well as CD, suggesting that cv.Toyoharuka can be a useful breeding material.

Free Research Field

植物分子遺伝学