DIfferent mechanisms of self-incompatibility in Rosaceae: non-self recognition by multiple factors type ans self recognition by single factor type

2016 Fiscal Year Final Research Report

• Project/Area Number: 24380004
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Breeding science
• Research Institution: Chiba University
• Principal Investigator: SASSA Hidenori 千葉大学, 園芸学研究科, 准教授 (50295507)
• Co-Investigator(Kenkyū-buntansha): 牛島 幸一郎 岡山大学, 環境生命科学研究科, 准教授 (20379720)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Keywords: 自家不和合性 / バラ科 / 花粉 / 雌ずい / RNase / F-box

Outline of Final Research Achievements

Pollen-expressed apple homologs of SBP1 and SSK1 were cloned and named MdSBP1 and MdSSK1, respectively, and subjected to further analyses. Both MdSBP1 and MdSSK1 interacted with SFBB. Further analyses showed that interaction of MdSSK1 with SFBB is stronger than that of MdSBP1, and that mRNA of MdSSK1 is much abundant than MdSBP1. Together, the results suggest that MdSSK1 containing SCFSFBB complex would play a major role in self-incompatibility in apple.

Free Research Field

遺伝・育種学