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Bulletin of Botanical Research ›› 2016, Vol. 36 ›› Issue (3): 395-400.doi: 10.7525/j.issn.1673-5102.2016.03.012

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Identification and Expression Analysis of Genes Encoding Zinc Finger Proteins in Betula platyphylla

WANG Yu-Hang, QIN Lin-Lin, LI Li   

  1. State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040
  • Received:2015-12-15 Online:2016-05-15 Published:2016-05-20
  • Supported by:
    This work was funded by the National Natural Science Foundation of China(Grant No.31470676) and by the Ministry of Science and Technology of China under the "863" program(Grant No.2013AA102704-0104)

Abstract: Zinc finger proteins constitute a large family of transcription factors and numerous members of them play diverse roles in many biological processes, including plant growth, development and stress responses. Based on their structural and functional diversities they were classified into nine types including C2H2, C8, C6, C3HC4, C2HC, C2HC5, C4, CCCH and C4HC3. We studied the genes in Betula platyphylla database by the sequences and homology comparison of genes encoding zinc finger proteins involving in stress responses from other organisms. A total of ten genes (designated as BpZFP1 to BpZFP10), of which four were C2H2 type, five were C3HC4-RING type, one was CCCH type were identified. By quantitative RT-PCR assay, we analyzed the expression patterns of BpZFPs in roots. BpZFP2, BpZFP3, BpZFP4, BpZFP5 and BpZFP8 were induced under high-salt and drought treatment significantly indicating their involvement in stress response in Birch.

Key words: Betula platyphylla, abiotic stress, zinc finger transcription factor, expression analysis

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