[1] BÖHLENIUS H, HUANG T, CHARBONNEL-CAMPAA L, et al. CO/FT regulatory module controls timing of flowering and seasonal growth cessation in trees[J]. Science, 2006, 312(5776):1040-1043.
[2] FLACHOWSKY H, HANKE M V, PEIL A, et al. A review on transgenic approaches to accelerate breeding of woody plants[J]. Plant Breed, 2009, 128:217-226.
[3] TAMAKI S, MATSUO S. Hd3a protein is a mobile flowering signal in rice[J]. Science, 2007, 316(5827):1033-1036.
[4] YAN Limei, FU Dong, LI Chunlei, et al. The wheat and barley vernalization gene VRN3 is an orthologs of FT[J]. Proc Nat Acad Sci, 2006, 103(51):19581-19586.
[5] LIN M K, BELANGER H, LEE Y J, et al. FLOWERING LOCUS T protein may act as the long-distance florigenic signal in the Cucurbits[J]. Plant Cell, 2007, 19:1488-1506.
[6] LIFSCHITZ E, EVIATAR T, ROZMAN A, et al. The tomato FT ortholog triggers systemic signals that regulate growth and flowering and substitute for diverse environmental stimuli[J]. Proc Natl Acad Sci, 2006, 103:6398-6403.
[7] ENDO T, SHIMADA T, FUJII H, et al. Ectopic expression of an FT homolog from citrus confers an early flowering phenotype on trifoliate orange(Poncirus trifoliate L.Raf)[J]. Transgenic Res, 2005, 14(5):703-712.
[8] TRANKNER C, LEHMANN S, HOENICKA H, et al. Over-expression of an FT-homologous gene of apple induces early flowering in annual and perennial plants[J]. Planta, 2010, 232(6):1309-1324.
[9] HSU C Y, LIU Y, LUTHE D S, et al. Poplar FT2 shortens the juvenile phase and promotes seasonal flowering[J]. Plant Cell, 2006, 18:1846-1861.
[10] HOENICKA H, LEHNHARDT D, POLAK O, et al. Early flowering and genetic containment studies in transgenic poplar[J]. J Biogeosci For, 2012, 5:138-146.
[11] ZHANG Huanling, HARRY D E, MA C, et al. Precocious flowering in trees:the FLOWERING LOCUS T gene as a research and breeding tool in Populus[J]. J Exp Bot, 2010, 61(10):2549-2560.
[12] SHEN Lili, CHEN Yang, SU Xiaohua, et al. Two FT orthologs from Populus simonii Carrière induce early flowering in Arabidopsis and poplar trees[J]. Plant Cell Tiss Organ Cult, 2012, 108(3):371-379.
[13] 贾小明,张焕玲. 3种FT基因诱导杨树早期开花比较[J]. 东北林业大学学报,2011,39(11):1-4.

JIA Xiaoming, ZHANG Huanling. Comparison of flowering induced by three FT genes on poplar[J]. J Nor For Univ, 2011, 39(11):1-4.
[14] HOLSTEIN M, de WACEK D, DEPICKER A, et al. Transfection and transformation of Agrobacterium tumefaciens[J]. Mol Gen Genet, 1978, 163:181-187.
[15] TUOMINEN H, SITBON F, JACOBSSON C, et al. Altered growth and wood characteristics in transgenic hybrid aspen expressing Agrobacferium tumefaciens T-DNA indoleacetic acid-biosynthetic genes[J]. Plant Physiol, 1995, 109:1179-1189.
[16] FILICHKIN S A, MEILAN R, BUSOV V B, et al. Alcohol-inducible gene expression in transgenic Populus[J]. Plant Cell Reports, 2005, 25:660-667.
[17] KUMAR S, FLADUNG M. Gene stability in transgenic aspen (Populus)(Ⅱ) Molecular characterization of variable expression of transgene in wild and hybrid aspen[J]. Planta, 2001, 213:731-740.
[18] KOMEDA Y. Genetic regulation of time to flower in Arabidopsis thaliana[J]. Annu Rev Plant Biol, 2004, 55(1):521-535.
[19] ROTTMANN W H, MEILAN R, SHEPPARD L A, et al. Diverse effects of overexpression of LEAFY and PTLF, a poplar (Populus) homolog of LEAFY/FLORICAULA, in transgenic poplar and Arabidopsis[J]. Plant J, 2000, 22:235-245.
[20] WEIGEL D. The genetics of flower development:From floral induction to ovule morphogenesis[J]. Ann Rev Genet, 1995, 29:19-39.
[21] ZEEVAART J A. Florigen coming of age after 70 years[J]. Plant Cell, 2006, 18(8):1783-1789.
[22] BENFEY P N, CHUA N H. The cauliflower mosaic virus 35S promoter:combinatorial regulation of transcription in plants[J]. Science, 1990, 250:959-966.