Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (9): 1581-1591.DOI: 10.3969/j.issn.1004-1524.2021.09.02

• Crop Science • Previous Articles     Next Articles

Identification and analysis of ABC transporters family from Eucommia ulmoides

CAI Fangyang1(), ZHAO Yichen1,*(), LI Yi2, ZHAO Degang1,3   

  1. 1. College of Life Sciences/College of Tea Sciences/Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region of Ministry of Education, Guizhou University, Guiyang 550025, China
    2. Transgenic Plant Facility Department of Plant Science, University of Connecticut, Storrs, CT 06269, USA
    3. Guiyang Branch Center for Testing of New Plant Varieties of Ministry of Agriculture and Rural Affairs, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
  • Received:2020-11-09 Online:2021-09-25 Published:2021-10-09
  • Contact: ZHAO Yichen

Abstract:

ATP-binding cassette (ABC) transpoter is ancient and huge family of transmembrane transport proteins, which are involved in the transport and accumulation of a variety of substances, detoxification of harmful substances, stomatal regulation, plant defense and other physiological activities in organisms. Eucommia ulmoides Oliv, as an important Chinese medicinal material, is mainly composed of secondary metabolites, and the transport and accumulation of secondary metabolites require the participation of ABC transporters. In this study, ABC transporter gene family in E. ulmoides was identified, then its molecular characteristics were analyzed from the aspects of gene identification, protein properties, protein structure, transmembrane structure, subcellular localization and phylogenetic relationship by bioinformatics method. The results predicted by bioinformatics showed that EuABC transporter protein family had 76 members, including 1-7 conserved motifs; most of the encoded proteins were stable proteins, which were mainly distributed on the plasma membrane, and the main component of secondary structure was α-helix and random coil, mainly distributed in the plasma membrane. Analysis of evolutionary tree showed that EuABC transporter family could be divided into eight subfamilies (A-G and I), and the number of members in each group was 3, 19, 14, 1, 1, 1, 29 and 8, respectively. The research results provided a favorable foundation for further study on the transport and accumulation of secondary metabolites in E. ulmoides, and also provided a reference for study of ABC transporter families of other plant.

Key words: Eucommia ulmoides Oliv, ATP-binding cassette transporters, gene family, transmembrane structure, subcellular localization, phylogenetic tree

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