@article{oai:repository.naro.go.jp:00003242, author = {Bai, Songling and Bai, Songling and Tuan, Pham Anh and TUAN, Pham Anh and 齋藤, 隆德 and SAITO, Takanori and 伊東, 明子 and ITO, Akiko and Ubi, Benjamin Ewa and Ubi, Benjamin Ewa and 伴, 雄介 and BAN, Yusuke and 森口, 卓哉 and MORIGUCHI, Takaya}, issue = {17}, journal = {Journal of Experimental Botany}, month = {Sep}, note = {Floral induction is an important event in the annual growth cycle of perennial fruit trees. For pear, this event directly affects fruit production in the following year. The flower buds in many species are induced by FLOWERING LOCUS T (FT), whose effect is repressed by the meristem-expressed gene TERMINAL FLOWER1 (TFL1). In this study, we investigated the functions of pear FT and TFL1 genes during floral development. Expression of pear FTs (PpFT1a and PpFT2a) in reproductive meristems was not obviously induced prior to floral initiation, while expression of TFL1s (PpTFL1-1a and PpTFL1-2a) rapidly decreased. The induction of the productive meristem identity MADS-box gene AP1 after repression of PpTFL1s suggested a primary role for PpTFL1 in floral induction. RNA-seq analysis suggested that plant hormone-related genes and several transcription factors that were coexpressed with PpTFL1 were potentially involved in the PpTFL1-mediated floral induction. Our data indicate the essential function of TFL1 in pear floral induction and add another species in the family Rosaceae in addition to strawberry and rose that shows a role for TFL1 in floral induction.}, pages = {4899--4914}, title = {Repression of TERMINAL FLOWER1 primarily mediates floral induction in pear (Pyrus pyrifolia Nakai) concomitant with change in gene expression of plant hormone-related genes and transcription factors}, volume = {68}, year = {2017}, yomi = {サイトウ, タカノリ and イトウ, アキコ and バン, ユウスケ and モリグチ, タカヤ} }