Skip to main content

Advertisement

Log in

Transmission, characterization and occurrence of recombination in Indian strain of squash leaf curl China virus associated with yellow mosaic and leaf curl disease of Summer squash

  • Original Article
  • Published:
3 Biotech Aims and scope Submit manuscript

Abstract

Summer squash is one of the important vegetable crops and its production is hampered by various abiotic and biotic stresses. Of the different biotic stresses, viral infections are responsible for causing great losses to this crop. Diseases caused by begomoviruses are becoming a major constraint in the cultivation of summer squash. Samples from summer squash plants exhibiting severe yellow mosaic and leaf curl symptoms were collected from the Varanasi district of Uttar Pradesh (India) and begomovirus associated with these plants was transmitted through whiteflies (Bemisia tabaci) to healthy squash plants. The relationship between causal virus and whitefly vector was determined. The minimum acquisition access period (AAP) and inoculation feeding period (IFP) required by B. tabaci to transmit the virus was determined to be 10 min and female insects have greater efficiency in transmitting virus than male insects. The partial genome of the virus was amplified by PCR (1.2 kb), cloned and sequenced from the ten infected plant samples collected from field. Partial genome sequence analysis (1.2 kb) obtained from the ten samples revealed that they are associated with begomovirus species closely related to the Indian strain of Squash leaf curl China virus (SLCCNV). Therefore, one representative sample (Sq-1) was selected and complete genome of the virus was amplified by rolling circle amplification (RCA) method. Sequence analysis by Sequence Demarcation Tool (SDT) showed that the current isolate has maximum nucleotide (nt) identity of 93.7–98.4% and 89–98.1% with respect to DNA A DNA B, respectively with Indian strains of SLCCNV infecting cucurbits in India. Recombination analysis of genomes (DNA A and DNA B components) showed that a major part of genomes likely to be originated from already known begomoviruses (ToLCNDV, SLCCNV-CN and SLCCNV-IN) are infecting cucurbitaceous crops. Serological assays such as triple antibody sandwich-enzyme-linked immune-sorbent (TAS-ELISA) assay, dot blot immunobinding assay (DIBA), immuno-capture polymerase chain reaction (IC-PCR) were developed for the detection of SLCCNV.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5 a
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

The authors are grateful to the Director, Indian Institute of Vegetable Research, Varanasi, for providing research facilities and his keen interest in this study.

Author information

Authors and Affiliations

Authors

Contributions

We declare that all authors participated in the research and article preparation. VV design of the experiments and drafted the article. CNLR designed the study and revision of the manuscript, KSS participated in analysis of the data, HDV and MN participated in the collection of the data. MKR guided and designed the study and revised the article. All authors approved the submitted version of the article.

Corresponding authors

Correspondence to V. Venkataravanappa or C. N. Lakshminarayana Reddy.

Ethics declarations

Conflict of interest

The authors declare that they have no competing interests.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOC 92 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Venkataravanappa, V., Reddy, C.N.L., Nandan, M. et al. Transmission, characterization and occurrence of recombination in Indian strain of squash leaf curl China virus associated with yellow mosaic and leaf curl disease of Summer squash. 3 Biotech 11, 265 (2021). https://doi.org/10.1007/s13205-021-02821-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s13205-021-02821-9

Keywords

Navigation