Kaur R, Sharma SP, Kalia A, Kaur N, Manchanda P.
In vitro induction and selection of mutants obtained through gamma irradiation with improved processing traits in potato (
Solanum tuberosum L.).
Int J Radiat Biol 2023;
100:139-149. [PMID:
37548596 DOI:
10.1080/09553002.2023.2245472]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/31/2023] [Indexed: 08/08/2023]
Abstract
PURPOSE
This manuscript aimed for the generation of γ-irradiation derived mutants of potato genotype PAU/RR-1501 possessing desirable processing traits.
MATERIALS AND METHODS
Nodal cuttings from virus-free explants were established on basal MS medium and irradiated with different doses (0, 5, 10 and 20 Gy) of γ-irradiation. The 5 and 10 Gy treated plantlets were multiplied and used for micro-tuber induction. Harvested micro-tubers were planted in pots for the selection and evaluation of mutants in M1V2 generation.
RESULTS
Four weeks post-treatment, plantlets (5 Gy) showed enhanced growth as compared to the control while 20 Gy treatment exhibited completely ceased shoot growth. The highest number and weight of mini-tubers per plant was recorded for 10 Gy followed by 5 Gy treatment as compared to control. The γ-irradiation treatments caused changes in the skin color and shape of M1V2 tubers.
CONCLUSION
Under the 5 Gy treatment 49.9% of clones produced exhibited cream and 8.53% brown skin color. Nine putative mutants were identified in genotype PAU/RR-1501 exhibiting promising processing traits.
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