Elucidation of important breeding traits in tomato using a comprehensive mutant population

2016 Fiscal Year Final Research Report

• Project/Area Number: 25252008
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Horticultural science
• Research Institution: University of Tsukuba
• Principal Investigator: EZURA Hiroshi 筑波大学, 生命環境系, 教授 (00332552)
• Co-Investigator(Kenkyū-buntansha): 加藤 一幾 岩手大学, 農学部, 准教授 (30613517) ; 有泉 亨 筑波大学, 生命環境系, 准教授 (70575381) ; 王 寧 筑波大学, 生命環境系, 助教 (90730193)
• Research Collaborator: TANASE Kyoko ; OKABE Yoshihiro ; ICHINO Takuji
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: トマト / 重要形質 / 日持ち性 / 糖度 / 花成

Outline of Final Research Achievements

The objectives of this study are to extending our knowledge on a molecular mechanism underlying important breeding traits including self-life and sugar accumulation of fruits and flowering, using a comprehensive mutant population based on Micro-Tom tomato which is a model cultivar of studying fruit development, and the effective mutant screening technology, TILLING. We have isolated and characterized new mutant alleles in genes reported as related genes which regulate such important breeding traits, while we have identified a novel gene accounting for sugar accumulation in tomato fruits. We have also demonstrated that some of new mutant alleles are useful for improving self-life of tomato fruits. These results will contribute to elucidate a molecular mechanism of important breeding traits.

Free Research Field

植物分子育種学