A mechanism in the maintenance of androdioecy from the view of a sex-specific marker transmission

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K07217
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Ecology/Environment
• Research Institution: Gifu University
• Principal Investigator: MIYAKE Takashi 岐阜大学, 教育学部, 准教授 (00380569)
• Co-Investigator(Kenkyū-buntansha): 牧 雅之 東北大学, 学術資源研究公開センター, 教授 (60263985)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 性表現 / 雄性両全性異株 / 性特異的マーカー

Outline of Final Research Achievements

Using NGS, we developed a sex-specific marker for androdioecious Schizopepon bryoniaefolius. This can be used in the reproductive stage of heterozygotic males, although there is a restriction in using in natural populations. From the view of the transmission advantage, we investigated the ratio of a sex-specific marker in pollen grains of heterozygotic males. Because of large differences among individuals, the ratio was not deviate from 1:1. However, it may imply that there remains a possibility that some males produce more pollen with the male-determinant gene. We did not find significant differences between sexes in pollen germination rate, growth rate, and survival rate.

Free Research Field

進化生態学