Analysis of Expressed Sequence Tags (ESTs) Collected from the Inflorescence of Chrysanthemum

  • Sumei Chen
  • Hengbin Miao
  • Fadi ChenEmail author
  • Beibei Jiang
  • Jungang Lu
  • Weimin Fang


The expressed sequence tags (ESTs) described in this report were obtained from the inflorescence of chrysanthemum. A complementary DNA (cDNA) library was constructed from the inflorescence of the anemone-type chrysanthemum ‘Zhongshanzigui’. In total, 7,307 cDNA clones were sequenced, representing 4,563 unique sequences and consisting of 3,567 singletons and 996 contigs. Comparison to the GenBank nonredundant (nr) database revealed 57.2% (2,608/4,563) chrysanthemum sequences with homology to genes of known function of other organisms. Approximately 26.67% (1,217/4,563) of the unigenes were clustered into 23 categories by the clusters of orthologous group analysis: Most of the identified transcripts were genes related to metabolism, subcellular localization, protein biosynthesis, and cell wall structure. The ESTs presented here will be a valuable addition to floral development transcriptional database.


Expressed sequence tags (ESTs) Transcripts Inflorescence Chrysanthemum 



Complementary DNA


Coding regions


Contiguous consensus sequences


The clusters of orthologous groups


Expressed sequence tags




Single nucleotide polymorphisms


Transcription factors


Untranslated region



The authors would like to thank Prof. Hiroaki Kodama of Graduate School of Horticulture, Chiba University, Japan, for his advices on cDNA library construction and Beijing Genomics Institute (BGI) for EST sequencing and assembling. This work was supported by the Program for New Century Excellent Talents in University of Chinese Ministry of Education (Grant No. NCET-06-0489), the National Natural Science Foundation of China (Grant No. 30872064), China Postdoctoral Science Foundation funded project (Grant No. 20070411058), and National Key Technology R&D Program of the Ministry of Science and Technology of the People’s Republic of China (Grant No. 2006BAD01A1806).


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Sumei Chen
    • 1
  • Hengbin Miao
    • 1
  • Fadi Chen
    • 1
    Email author
  • Beibei Jiang
    • 1
  • Jungang Lu
    • 1
  • Weimin Fang
    • 1
  1. 1.Key Laboratory of Flower Breeding and Genetics, College of HorticultureNanjing Agricultural UniversityNanjingChina

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