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In vitro adventitious regeneration and plantlet transplantation of Atractylodes chinensis (DC.) Koidz., a valuable medicinal plant

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Abstract

Triploid Atractylodes chinensis (DC.) Koidz. is a valuable genetic resource for medicinal plant breeding, and there is a demand to develop an efficient in vitro regeneration protocol to resolve triploid sterility in production. In this study, the effects of sterilization, bud type, 6-benzyladenine (6-BA) combined with 1-naphthaleneacetic acid (NAA) or indole-3-butyric acid (IBA) and transplanting materials on shoot regeneration, rooting and growth were explored. The genetic stability of regenerated plants was verified using flow cytometry (FCM) and simple sequence repetition (SSR) molecular markers. When axillary buds were sterilized with sodium hypochlorite for 30 min and cultured on Murashige and Skoog (MS) + 1.5 mg·L-1 6-BA + 0.4 mg·L-1 NAA medium, the regeneration rate was 61.33%. Strong roots occurred on 1/2 MS medium combined with 3% sucrose and 0.6 mg·L-1 IBA. Rooting plantlets transplanted into a mixture of peat soil: perlite (1:1, v:v), the survival rate up to 90.00%. Histological analysis revealed that shoot meristematic cells derived from cambium cells developed into the apical meristem and formed shoots. FCM analysis determined that the ploidy levels of 20 random regenerated plants were coincident with explants, the number and size of bands obtained by 6 pairs of SSR polymorphic primers were consistent. The results of this study show that our in vitro adventitious regeneration and plantlet transplantation protocol of triploid A. chinensis was efficient and produced strong genetic stability.

Key message

In this study, an efficient and genetically stable adventitious regeneration of triploid A. chinensis was established for the first time.

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Data Availability

All relevant data are within the paper.

Abbreviations

AR:

Atractylodis Rhizoma

TCM:

Traditional Chinese medicine

6-BA:

6-Benzyladenine

CD:

Chlorine dioxide

FCM:

Flow cytometry

MC:

Mercuric chloride

IBA:

Indole-3-butyric acid

MS:

Murashige and Skoog

SH:

Sodium hypochlorite

NAA:

1-Naphthaleneacetic acid

PGRs:

Plant growth regulators

SSR:

Simple sequence repetition

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Funding

This work was supported by the Key Research and Development Project Fund of Jilin Province (20200404005YY).

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Authors

Contributions

Wenhao Jia, ** Wang contributed to the study conception and design. Material preparation, data collection and analysis were performed by Junbo Rong, Mengyang Zhang, Wenyue Peng and Xutong He. The first draft of the manuscript was written by Wenhao Jia and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to **w@126.com">Ying** Wang.

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The authors declare that they have no confict of interest.

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Informed consent was obtained from all individual participants included in the study.

Additional information

Communicated by Agnieszka Szopa.

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Jia, W., Rong, J., Zhang, M. et al. In vitro adventitious regeneration and plantlet transplantation of Atractylodes chinensis (DC.) Koidz., a valuable medicinal plant. Plant Cell Tiss Organ Cult 155, 209–220 (2023). https://doi.org/10.1007/s11240-023-02573-9

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  • DOI: https://doi.org/10.1007/s11240-023-02573-9

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