Study on photoperiod sensitivity and ecotype that contributes to improving and stabilizing buckwheat yield

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K18642
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Crop production science
• Research Institution: University of Tsukuba
• Principal Investigator: HARA Takashi 筑波大学, 生命環境系, 助教 (20721426)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: ソバ / 日長反応性 / 生態型 / ゲノム解析 / 生態型デザイン育種

Outline of Final Research Achievements

Common buckwheat is an important crop, but yield and yield stability are low. Therefore, these improvements and development of breeding techniques is required. It is thought that photoperiod sensitivity and ecotype are greatly related to improve buckwheat yield and yield stability. However, few studies have elucidated the relevance on the genome level of photoperiod sensitivity, ecotype and ecotype differentiation in buckwheat.
Under these circumstances, this research has confirmed that many photoperiod sensitivity homologous genes are present in buckwheat, ecotype changes by selection under long day conditions, selection pressure for the photoperiod sensitivity gene was confirmed. From these results, It was inferred that ecotype design breeding in buckwheat could be possible by targeting photoperiod sensitivity gene regions.

Free Research Field

植物育種学