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Genome-Wide Analysis of the Cryptochrome Gene Family in Plants

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Plant Cryptochromes (CRYs) are photolyase-like flavoproteins that have been reported in all evolutionary lineages. As UV-A/blue light photoreceptors, CRYs play a vital role in plant growth and development. In the present study, a total of 94 CRY1 and 68 CRY2 candidate genes were retrieved from 58 and 50 plant genomes, respectively. Phylogenetic analysis indicates that CRY genes could be divided into three groups (dicotyledons, monocots, and spore plants). A comprehensive review of the CRY gene family suggests that the CRY genes are relatively conservative and stable during evolution.

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photolyase homologous region


flavin adenine dinucleotide


Constitutive photomorphogenesis 1






transcription/translation feedback loop


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This work was supported by NSFC (31600228 to S.C.; U1605212, 31761130074 to Y.Q.), fund from Fujian Agriculture and Forestry University Forestry peak discipline construction project (71201800739 to S.C.) and a Guangxi Distinguished Experts Fellowship and a Newton Advanced Fellowship (NA160391) to Y.Q.

Author information

S.C., S.H, H.L. designed the study, performed the experiments and wrote manuscript. J.Z., M.A., Q.W., H.C., and A.H. assisted with the data interpretation and manuscript writing. Y. Y. and Y. Q. conceived the study and revised the manuscript.

Correspondence to Yuan Yu or Yuan Qin.

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Communicated by: Yuval Cohen

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Cao, S., He, S., Lv, H. et al. Genome-Wide Analysis of the Cryptochrome Gene Family in Plants. Tropical Plant Biol. 13, 117–126 (2020).

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  • Genome-wide analysis
  • Cryptochrome
  • Molecular evolution
  • CRY gene family