ACTA AGRICULTURAE BOREALI-SINICA ›› 2014, Vol. 29 ›› Issue (6): 126-130. doi: 10.7668/hbnxb.2014.06.022

Special Issue: Multigrain crops

Previous Articles     Next Articles

Construction and Preliminary Analysis of the SSH Library from the Foxtail Millet Rust Resistant Variety of Shilixiang

LI Zhi-yong1, JIA Li-xia2, DONG Li1, WANG Nan1, BAI Hui1, QUAN Jian-zhang1, LIU Lei1, DONG Zhi-ping1   

  1. 1. Millet Institute, Hebei Academy of Agriculture and Forestry Sciences, Minor Cereal Crops Laboratory of Hebei Province, National Foxtail Millet Improvement Center, Shijiazhuang 050035, China;
    2. Hebei Engineering University, Handan 056021, China
  • Received:2014-08-11 Published:2014-12-28

Abstract: In order to understand key process controling rust resistance and molecular mechamism,a suppression subtractive hybridizaion(SSH) library was constructed from Shilixiang with young leaves collected from seedling inoculated with Uromyces setariae after 12,24,48,72,96 h.To identify differentially express gene in response to Uromyces setariae,differentially express gene were screened and putative functions were assigned by analysing comparing sequence in non-redundance database from GenBank.The exprssion pattern of partially screened gene were checked by real-time-quantitative PCR.Positive clone were randomly picked out and the fragment were 200-750 bp in length.368 ESTs were obtained and only 32 ESTs were related to defence response by blast analysis in GenBank.By analysing the defence related EST,it was conclued that WRKY transcription factor,mitogen-activated protein kinase cascades,calcium signal transduction,glutathione S-transferase,cytochrome P450,pathogen-related protein,were supposed to involved in the process of incompatible interaction between Shilixiang and Uromyces setariae.Four genes from the SSH library were selected to measure their expression levels by real-time-quantitative PCR and the results showed the four genes were up-regulated in foxtail millet leaves inoculated with Uromyces setariae.Through the construction of SSH library,rust resistant genes were identified,which laid the foundation for the molecular breeding of rust resistant foxtail millet.

Key words: Suppression subtractive hybridization, Uromyces setariae, Foxtail millet, EST

CLC Number: 

Cite this article

LI Zhi-yong, JIA Li-xia, DONG Li, WANG Nan, BAI Hui, QUAN Jian-zhang, LIU Lei, DONG Zhi-ping. Construction and Preliminary Analysis of the SSH Library from the Foxtail Millet Rust Resistant Variety of Shilixiang[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(6): 126-130. doi: 10.7668/hbnxb.2014.06.022.

share this article