Expression of FcFT1, a FLOWERING LOCUS T-like gene, is regulated by light and associated with inflorescence differentiation in fig (Ficus carica L.)

BMC Plant Biology
Hidetoshi IkegamiTakao Nakahara

Abstract

Because the floral induction occurs in many plants when specific environmental conditions are satisfied, most plants bloom and bear fruit during the same season each year. In fig, by contrast, the time interval during which inflorescence (flower bud, fruit) differentiation occurs corresponds to the shoot elongation period. Fig trees thus differ from many species in their reproductive growth characteristics. To date, however, the molecular mechanisms underlying this unorthodox physiology of floral induction and fruit setting in fig trees have not been elucidated. We isolated a FLOWERING LOCUS T (FT)-like gene from fig and examined its function, characteristics, and expression patterns. The isolated gene, F. carica FT (FcFT1), is single copy in fig and shows the highest similarity at the amino acid level (93.1%) to apple MdFT2. We sequenced its upstream region (1,644 bp) and identified many light-responsive elements. FcFT1 was mainly expressed in leaves and induced early flowering in transgenic tobacco, suggesting that FcFT1 is a fig FT ortholog. Real-time reverse-transcription PCR analysis revealed that FcFT1 mRNA expression occurred only in leaves at the lower nodes, the early fruit setting positions. mRNA levels remained a con...Continue Reading

References

Sep 1, 1990·The Journal of General Virology·D J MacKenzie, J H Tremaine
Apr 1, 1997·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·M A Blázquez
Mar 13, 1999·The Plant Journal : for Cell and Molecular Biology·S Yanagisawa, R J Schmidt
Feb 13, 2001·Current Opinion in Plant Biology·T Araki
Sep 20, 2002·Nature·Marcelo J Yanovsky, Steve A Kay
Feb 14, 2004·Science·Federico ValverdeGeorge Coupland
May 17, 2005·Proceedings of the National Academy of Sciences of the United States of America·Yoshie HanzawaDesmond Bradley
Jun 3, 2006·Science·Mordechai E KislevOfer Bar-Yosef
Jul 18, 2006·The Plant Cell·Chuan-Yu HsuCetin Yuceer
Oct 13, 2006·Journal of Experimental Botany·Laurent Corbesier, George Coupland
Apr 21, 2007·Science·Shojiro TamakiKo Shimamoto
Mar 24, 2009·Annals of Botany·Aaron GreenupBen Trevaskis
May 7, 2009·Proceedings of the National Academy of Sciences of the United States of America·Akiva ShalitEliezer Lifschitz
May 29, 2009·Genetics·Satoshi WatanabeKyuya Harada
Mar 2, 2010·Plant & Cell Physiology·Nobuhiro KotodaKazuyuki Abe
Jun 10, 2011·Proceedings of the National Academy of Sciences of the United States of America·Chuan-Yu HsuCetin Yuceer
Feb 1, 2003·American Journal of Botany·Cetin YuceerRichard L Harkess

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Datasets Mentioned

BETA
AB027504

Methods Mentioned

BETA
light microscopy
PCR
transgenic

Software Mentioned

PLACE Signal Scan Search
PLACE
GENETYX

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