Journal of Northern Agriculture ›› 2021, Vol. 49 ›› Issue (6): 1-14.doi: 10.12190/j.issn.2096-1197.2021.06.01

• Crop genetic breeding·Germplasm resources •     Next Articles

Genome-wide identification,evolution and expression analysis of LBD gene family in Ricinus communis

DUAN Qiang1,2,3,4,5,6, HE Zhibiao1,7, LI Guorui1,2,3,4,5,6, ZHAO Xiuping1,3,4,5,6, ZHANG Shuai1,3,4,5,6, HAN Wenyu7, CHEN Yongsheng1,2,3,4,5,6   

  1. 1. Key Laboratory of Castor Breeding of the State Ethnic Affairs Commission,Inner Mongolia University for Nationalities,Tongliao 028043,China;
    2. State Key Laboratory of Applied Optics,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130000,China;
    3. Inner Mongolia Industrial Engineering Research Center of Universities for Castor,Tongliao 028043,China;
    4. Inner Mongolia Key Laboratory of Castor Breeding,Tongliao 028043,China;
    5. Inner Mongolia Collaborative Innovation Center for Castor Industry,Tongliao 028043,China;
    6. Inner Mongolia Engineering Research Center of Industrial Technology Innovation of Castor,Tongliao 028043,China;
    7. Tongliao Institute of Agricultural and Animal Husbandry Sciences,Tongliao 028043,China
  • Received:2021-10-18 Online:2021-12-20 Published:2022-02-09

Abstract: 【Objective】To explore the composition and expression pattern of Ricinus communis LBD transcription factor gene family.【Methods】Bioinformatics was used to screen and identify members of Ricinus communis LBD gene family at the whole genome level,and their gene structure,physical and chemical characteristics,protein conserved motifs,evolutionary selection pressure,phylogenetic tree,and gene expression quantity were analyzed.【Results】There were 30 members of Ricinus communis LBD gene family found,all of which were well conserved throughout evolution. The genes were split into two categories:Class1 and Class2,with 24 and 6 LBD genes,respectively,based on LBD domain and phylogenetic tree analyses. Ricinus communis LBD gene family members′ gene structure and protein conserved motifs were found to be quite simple.Subcellular localization revealed that all members of Ricinus communis LBD gene family were located in the nucleus,with RcLBD12 being in the cell membrane as well. LBD genes are widely involved in the development and regulation of leaves,stems,roots,embryos,and other tissues in Ricinus communis,and had a key role in the resistance to abiotic stress according to expression quantity data.【Conclusion】In the evolutionary process,the LBD gene family members had undergone large-scale fragment replication,selection,and participated in the regulation of the growth and development of many tissues of Ricinus communis. Where the RcLBD6 and RcLBD27 may play an important role in the process of Ricinus communis resistance to abiotic stress.

Key words: Ricinus communis, LBD gene family, Phyletic evolution, Evolutionary selection pressure, Expression pattern

CLC Number: 

  • S565.6