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Insights into structural and functional diversity of Dof (DNA binding with one finger) transcription factor

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Main conclusion

The structural, functional and in-silico studies of Dof transcription factor attempted so far reveals immense opportunity to analyze the plant genomes in terms of number of Dof genes and discuss in light of the evolution. The multiple functions of Dof genes needs to explored for crop improvement.

Transcription factors play a very vital role in gene regulation at transcriptional level and are being extensively studied across phylas. In recent years, sequencing of plant genomes has led to genome-wide identification and characterizations of diverse types of plant-specific transcription factor gene family providing key insights into their structural and functional diversity. The DNA binding with one finger (Dof), a class belonging to C2H2-type zinc finger family proteins, is a plant-specific transcription factor having multiple roles such as seed maturation and germination, phytohormone and light-mediated regulation and plant responses to biotic and abiotic stresses. Dof proteins are present across plant lineage, from green algae to higher angiosperm, and represent a unique class of transcription factor having bifunctional binding activities, with both DNA and proteins, to regulate the complex transcriptional machinery in plant cells. The structural and functional diversity of the Dof transcription factor family along with the bioinformatics analysis highlighting the phylogeny of Dof families is reviewed in light of its importance in plant biotechnology for crop improvement.

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Acknowledgements

The financial support by UP Council of Agricultural Research, Lucknow in the form of research grant (Letter No.738/DY/CROPS/RF/2014 dated 30/7/2014) to D Yadav and Department of Science and Technology, Government of India, New Delhi in the form of Women Scientist-A fellowship (SR/WOS-A/LS-110/2012(G) to N. Malviya is thankfully acknowledged. S. Gupta acknowledges the CSIR, New Delhi for Senior Research Fellowship. The author wishes to acknowledge the Head, Department of Biotechnology, D.D.U Gorakhpur University, Gorakhpur, INDIA for infrastructural support.

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  1. Department of Biotechnology, D.D.U Gorakhpur University, Gorakhpur, 273 009, Uttar Pradesh, India

    S. Gupta, N. Malviya, J. Nasim & D. Yadav

  2. Institute of Microbial Technology (CSIR), Sector-39A, Chandigarh, 160 036, India

    H. Kushwaha

  3. National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110 067, India

    N. C. Bisht

  4. Centre for Bioinformatics, School of Biotechnology, Banaras Hindu University, Varanasi, 221 005, Uttar Pradesh, India

    V. K. Singh

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Gupta, S., Malviya, N., Kushwaha, H. et al. Insights into structural and functional diversity of Dof (DNA binding with one finger) transcription factor. Planta 241, 549–562 (2015). https://doi.org/10.1007/s00425-014-2239-3

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  • DOI: https://doi.org/10.1007/s00425-014-2239-3

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