2013 Fiscal Year Final Research Report

Elucidation of molecular mechanism of metaxenia and its application in pear fruit growing.

Research Project

Project/Area Number	24658031
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Horticulture/Landscape architecture
Research Institution	Tottori University
Principal Investigator	ITAI Akihiro 鳥取大学, 農学部, 准教授 (10252876)
Co-Investigator(Kenkyū-buntansha)	OIKAWA Akira 山形大学, 農学部, 准教授 (50442934)
Project Period (FY)	2012-04-01 – 2014-03-31
Keywords	ナシ / 花粉親 / 果実形質 / 遺伝子発現
Research Abstract	The effect of different pollen cultivars on the maternal tissues of fruits in several cultivars were evaluated in pear. Significant changes in fruit diameter, length, weight and firmness were observed within pollen and maternal combinations. There are significant differences in metabolites among different combinations by metabolomics. Microarray and RNA-seq analysis also reveals changes in the expression of many genes during fruit growth among different combinations. These results show the evidence of metaxenia: effect of pollen sources on the maternal tissues in pear fruit. The meaxenia may be used for new cultivation techniques in pear fruit growing.

(3 results)