Acta Agriculturae Boreali-Sinica ›› 2024, Vol. 39 ›› Issue (6): 1-17. doi: 10.7668/hbnxb.20195145

Special Issue: Tomato Plant protection Biotechnology Hot Article Vegetables

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Genome-wide Identification of Dicer-like,Argonaute and RNA-dependent RNA Polymerase Gene Families and Their Expression Analyses in Response to ToCV Infection and Abiotic Stresses in Solanum habrochaites

KANG Chen1, TIAN Zhejuan1, GAO Kang1, HAO Lingyu1, LIU Wei1, LI Yadong1, WU Zhiming1,2   

  1. 1 Institute of Cash Crops,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China
    2 Hebei Vegetable Innovation Technology Center,Shijiazhuang 050051,China
  • Received:2024-09-17 Published:2025-01-02

Abstract:

Bioinformatics and expression patterns of Dicer-like(DCL),Argonaute(AGO)and RNA-dependent RNA polymerase(RDR)gene families in the whole genome of Solanum habrochaites were analyzed,so as to provide references for further study on the functions of DCL,AGO and RDR gene families in the response of S.habrochaites to abiotic and viral infection.Using Arabidopsis thaliana DCL,AGO and RDR genes as reference sequences,the genome of S.habrochaites LA1777 was searched by local perl language and software such as Pfam and SMART,and the members of ShDCL,ShAGO and ShRDR gene families were determined.Bioinformatics analysis of DCL,AGO and RDR family genes in S.habrochaites was carried out by means of ExPASy,GSDS 2.0,MEGA,Tbtools and SWISS-MODEL.According to abiotic stress treatment,Tomato chlorosis virus(ToCV)treatment and Real-time Fluorescence Quantitative PCR technology,the expression patterns of these genes were analyzed.Seven ShDCL,15 ShAGO and 6 ShRDR genes were identified from S.habrochaites,which were distributed on chromosome 5,7 and 6 respectively.The encoded proteins were similar in structure to DCL,AGO and RDR in other plants,and all of them contained conserved domains unique to this family.Phylogenetic analysis showed that these genes were divided into 4 subgroups,and there were high structural and functional similarities between S.habrochaites and S.lycopersicum.ShDCL2a,ShDCL2c,ShDCL3,ShDCL4,ShAGO1b,ShAGO3,ShAGO4b,ShAGO5,ShAGO7,ShAGO10a,ShAGO10b,ShRDR1,ShRDR2,ShRDR3a,ShRDR6a and ShRDR6b were significantly up-regulated after various abiotic stresses and ToCV infection.It is speculated that these genes play important roles in abiotic stress and virus infection.

Key words: Solanum habrochaites, DCL, AGO, RDR, Abiotic stress, Tomato chlorosis virus(ToCV)

Cite this article

KANG Chen, TIAN Zhejuan, GAO Kang, HAO Lingyu, LIU Wei, LI Yadong, WU Zhiming. Genome-wide Identification of Dicer-like,Argonaute and RNA-dependent RNA Polymerase Gene Families and Their Expression Analyses in Response to ToCV Infection and Abiotic Stresses in Solanum habrochaites[J]. Acta Agriculturae Boreali-Sinica, 2024, 39(6): 1-17. doi: 10.7668/hbnxb.20195145.

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