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Cryptochrome 2 from Lilium × formolongi Regulates Photoperiodic Flowering in Transgenic Arabidopsis thaliana.
Wu, Xiao-Mei; Yang, Zheng-Min; Yang, Lin-Hao; Chen, Ji-Ren; Chen, Hai-Xia; Zheng, Si-Xiang; Zeng, Jian-Guo; Jia, Gui-Xia; Li, Yu-Fan.
Afiliación
  • Wu XM; Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha 410128, China.
  • Yang ZM; Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha 410128, China.
  • Yang LH; Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha 410128, China.
  • Chen JR; Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha 410128, China.
  • Chen HX; Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha 410128, China.
  • Zheng SX; Institute of Agriculture Environment and Agro Ecology, Hunan Academy of Agriculture Sciences, Changsha 410125, China.
  • Zeng JG; National and Local Union Engineering Research Center of Veterinary Herbal Medicine Resource and Initiative, Hunan Key Laboratory of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha 410125, China.
  • Jia GX; National Engineering Research Center for Floriculture, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, Beijing Laboratory of Urban and Rural Ecological Environment and College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China.
  • Li YF; Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, College of Horticulture, Hunan Agriculture University, Changsha 410128, China.
Int J Mol Sci ; 22(23)2021 Nov 29.
Article en En | MEDLINE | ID: mdl-34884732
The photoperiodic flowering pathway is essential for plant reproduction. As blue and ultraviolet-A light receptors, cryptochromes play an important role in the photoperiodic regulation of flowering. Lilium × formolongi is an important cut flower that flowers within a year after seed propagation. Floral induction is highly sensitive to photoperiod. In this study, we isolated the CRYPTOCHROME2 gene (LfCRY2) from L. × formolongi. The predicted LfCRY2 protein was highly homologous to other CRY2 proteins. The transcription of LfCRY2 was induced by blue light. LfCRY2 exhibits its highest diurnal expression during the floral induction stage under both long-day and short-day photoperiods. Overexpression of LfCRY2 in Arabidopsis thaliana promoted flowering under long days but not short days, and inhibited hypocotyl elongation under blue light. Furthermore, LfCRY2 was located in the nucleus and could interact with L. × formolongi CONSTANS-like 9 (LfCOL9) and A. thaliana CRY-interacting basic-helix-loop-helix 1 (AtCIB1) in both yeast and onion cells, which supports the hypothesis that LfCRY2 hastens the floral transition via the CIB1-CO pathway in a manner similar to AtCRY2. These results provide evidence that LfCRY2 plays a vital role in promoting flowering under long days in L. × formolongi.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Fotoperiodo / Lilium / Flores / Criptocromos Idioma: En Revista: Int J Mol Sci Año: 2021 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Fotoperiodo / Lilium / Flores / Criptocromos Idioma: En Revista: Int J Mol Sci Año: 2021 Tipo del documento: Article País de afiliación: China