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Bulletin of Botanical Research ›› 2021, Vol. 41 ›› Issue (3): 354-361.doi: 10.7525/j.issn.1673-5102.2021.03.005

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Transcriptome Analysis in Vascular Cambium and Xylem of Paulownia tomentosa

Yun TENG1, Zong-Bo QIU2(), Wen-Li WANG2, Xue-Ru ZHANG2   

  1. 1.College of Horticulture,Xinyang Agriculture and Forestry University,Xinyang 464000
    2.College of Life Science,Henan Normal University,Xinxiang 453007
  • Received:2020-04-25 Online:2021-05-20 Published:2021-03-24
  • Contact: Zong-Bo QIU E-mail:qiuzongbo@126.com
  • About author:TENG Yun(1974—),female,master,lecturer,mainly engaged in the study of development biology in plant.
  • Supported by:
    National Natural Science Foundation of China(31500499);Program for Science Technology Innovation Talents in Universities of Henan Province(16HASTIT019)


We obtained about 16.35 Gb transcriptome data in total from vascular cambium and xylem zone of Paulownia tomentosa by Illumina HiseqTM 2500 sequencing. After assembled, 104 432 unigenes were obtained, the average length of unigene were 662 nt. Then, the unigenes were blastn and annotated by public databases, and 40 789(Nr: 39.05%), 31 675(NT:30.33%), 15 539(COG:14.87%), 29 168(GO:27.93%), 16 316(KEGG:15.62%), 30 499(SwissProt:29.20%) and 28 828(Pfam:27.6%) unigenes were annotated respectively. By GO analysis, 29 168 unigenes were potentially involved in 55 functional categories of biological processes, cellular components, and molecular functions respectively. By COG analysis, 15 539 unigenes were classified into 25 functional groups; whereas, by KEGG analysis, 16 316 unigenes were assigned to 130 known pathways. In addition, 16 118 simple sequence repeat(SSR) loci were determined in the transcriptome of P.tomentosa. This study provided a basic data for further exploration of important functional genes in P. tomentosa.

Key words: Paulownia, vascular cambium, high-throughput sequencing, transcriptome

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