Skip to main content

Advertisement

Log in

Use of gamma radiation to induce mutations in rice (Oryza sativa L.) and the selection of lines with tolerance to salinity and drought

  • Plant Tissue Culture
  • Published:
In Vitro Cellular & Developmental Biology - Plant Aims and scope Submit manuscript

Abstract

One of the strategies for genetic improvement of Oryza sativa L. (rice) is the use of radiation-induced mutagenesis to search for materials suitable for production in marginal conditions, such as drought and salinity. In this present study, indica rice ‘CR-5272’ embryogenic calluses and seeds were exposed to gamma radiation. Survival and growth of plants derived from embryogenic calluses and seeds were evaluated in vitro in the presence of selection factors for salinity and drought (NaCl and sorbitol). Plants regenerated from irradiated calluses and seeds were screened for tolerance to these conditions and promising lines were identified. Culture of plants regenerated from irradiated calluses (M1) allowed the selection of 60, 58 and 15 promising lines with tolerance to salinity, drought, and both factors, respectively. Six promising salt-tolerant lines and four drought-tolerant lines were selected from plants grown from irradiated seeds (M2). A hormetic response to irradiation was observed in seeds; seeds irradiated at 50 Gy showed increased callus induction and callus weight. This study allowed advancements in the improvement of rice ‘CR-5272’ through the production of promising lines that are being evaluated in field studies.

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.

Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.

Similar content being viewed by others

References

Download references

Funding

The authors gratefully recognize the financial support of the Consejo Nacional de Rectores (CONARE) of Costa Rica (VI-252-2015) and the Vice Presidencies for Research and Extension of the Instituto Tecnologico de Costa Rica and the Universidad de Costa Rica.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ana Abdelnour-Esquivel.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Editor: Wagner Campos Otoni

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Abdelnour-Esquivel, A., Perez, J., Rojas, M. et al. Use of gamma radiation to induce mutations in rice (Oryza sativa L.) and the selection of lines with tolerance to salinity and drought. In Vitro Cell.Dev.Biol.-Plant 56, 88–97 (2020). https://doi.org/10.1007/s11627-019-10015-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11627-019-10015-5

Keywords

Navigation