2013 Fiscal Year Final Research Report

Analysis on apomixis processes in mangosteen fruits.

Research Project

Project/Area Number	22658009
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Horticulture/Landscape architecture
Research Institution	Kyoto University
Principal Investigator	YONEMORI keizo 京都大学, (連合)農学研究科(研究院), 教授 (10111949)
Project Period (FY)	2010-04-01 – 2013-03-31
Keywords	園芸学 / 組織・細胞 / 単為生殖
Research Abstract	The apomictic seed of mangosteen fruit is formedat relatively late stages after anthesis and derive from the inner layer of integument as a cell mass not as a nucellar embryo. Furthermore, despite that mangosteen fruit has 4-7 locules, only 1-3 locules develop well without pollination and these well developed-locules are filled with the liquid of endosperm. So, we speculated an important role of plant hormones in the liquid for apomictic seed development and have tried to analyze plant hormones in this liquid by GC-MS. As a result, we identified IAA, ABA and jasmonic acid, and the fluctuation of these hormone contents during fruit development is determined for considering a role for apomictic seed formation. In addition, the external treatments of these plant hormones didn't show a relationship to apomictic seed formation, indicating the improvement for treatment methods.

(3 results)