Development of the male sterile line of eggplant using the cytoplasm of Solanum macrocarpon

2020 Fiscal Year Final Research Report

• Project/Area Number: 17K07645
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Horticultural science
• Research Institution: Saga University
• Principal Investigator: Isshiki Shiro 佐賀大学, 農学部, 教授 (40253588)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Keywords: コルヒチン核置換法 / 細胞質雄性不稔 / Solanum macrocarpon / ナス / 複二倍体

Outline of Final Research Achievements

We aimed to develop a new CMS line of eggplant using the cytoplasm of Solanum macrocarpon. Since F1 of S. macrocarpon and eggplant is sterile, in this study, F1 was treated with colchicine to produce the amphidiploid, and then the amphidiploid was self-propagated to produce self-fertilized seedlings of the amphidiploid. Using these seedlings from the amphidiploid, we aimed to develop a male sterile line with the cytoplasm of S. macrocarpon. As a result, the cytoplasmic replacement line of eggplant using the cytoplasm of S. macrocarpon has male sterility without anther dehiscence, and the development of a new male sterility line of eggplant can be expected in the future.

Free Research Field

園芸科学

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義や社会的意義は、ナスにおいてコルヒチン核置換法によっても雄性不稔系統の開発を目指すことができた点である。