Acta Agriculturae Boreali-Sinica ›› 2018, Vol. 33 ›› Issue (4): 1-8. doi: 10.7668/hbnxb.2018.04.001

Special Issue: Corn Drought and water saving Biotechnology

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The Identification of Drought Tolerance-related Transcription Factors in Early Developing Tassel of Maize

WU Yongbo1,2, HAO Zhuanfang2, WANG Nan2, SONG Jie2, ZHOU Yueheng2, LIU Bojuan2, ZHU Hanyong3, DI Hong1, WANG Zhenhua1, LI Xinhai1,2   

  1. 1. College of Agriculture, Northeast Agricultural University, Harbin 150030, China;
    2. Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    3. Wenshan Academy of Agricultural Sciences, Wenshan 663000, China
  • Received:2018-05-06 Published:2018-08-28

Abstract: To explore more drought-related transcription factors genes in early growth and development of tassels, two drought-tolerant (DT) Tie 7922, X178 and two sensitive maize inbred lines (DS) Ji 81162, Dan 340 were used. The potted planting method was used to cultivate the seedlings, and the materials were treated by artificial simulated field drought stress and normal irrigation under the same and suitable water conditions. RNA-Seq technique was used to detect the changes in transcriptional level of the gene in drought related transcription factor family in the early stage of maize ear development compared with the normal irrigation treatment. The results showed that 287 genes were differently expressed under drought stress, and 34 of them are related to drought tolerance regulation revealed by GO enrichment and annotation, including 6 commons in two drought-tolerant line, 3 commons in two sensitive line, and all with uniform expression pattern, and 1 detected in four inbreds. The results provided the basic knowledge for drought tolerant gene identifition and molecular breeding of maize.

Key words: Maize tassel, Transcription factors, Drought tolerance

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Cite this article

WU Yongbo, HAO Zhuanfang, WANG Nan, SONG Jie, ZHOU Yueheng, LIU Bojuan, ZHU Hanyong, DI Hong, WANG Zhenhua, LI Xinhai. The Identification of Drought Tolerance-related Transcription Factors in Early Developing Tassel of Maize[J]. Acta Agriculturae Boreali-Sinica, 2018, 33(4): 1-8. doi: 10.7668/hbnxb.2018.04.001.

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