Skip to main content
Log in

Phylogenetic inferences using nuclear ribosomal ITS and chloroplast sequences provide insights into the biogeographic origins, diversification timescales and trait evolution of Rubus in the Japanese Archipelago

  • Original Article
  • Published:
Plant Systematics and Evolution Aims and scope Submit manuscript

Abstract

This study aimed to reveal the evolutionary timescale and processes underlying the diversity of Rubus in the Japanese Archipelago. We conducted molecular phylogenetic analyses of most native species (35 species), along with previously published data from 116 foreign species, based on nuclear ribosomal internal transcribed spacer (ITS) and chloroplast DNA sequences. Most of the northern species of Japan, that is, Rubus chamaemorus, R. pedatus, R. vernus, R. pseudojaponicus, and R. ikenoensis, were found to belong to anciently diverged lineages; in particular, R. ikenoensis formed a unique lineage distinct from other species. The other species diverged into two evolutionary groups. One included subg. Malachobatus, Chamaebatus, and sects. Pungentes, Idaeanthi, and Parvifolii (subg. Idaeobatus), which was further divided into two clades in the chloroplast phylogenies. Although the phylogenetic structures within this group were unresolved, R. sieboldii has been proven to be recently derived. The second group represented a well-supported clade, comprising sects. Microphylli, Corchorifolii, Peltati, and Rosifolii (subg. Idaeobatus) and suggested early Miocene diversification of this Asian lineage associated with character specialization in vegetative reproduction and leaf shape. This clade was further resolved into lower clades primarily representing the sectional classifications, although the placement of the earliest diverged species, R. sumatranus, R. peltatus, R. corchorifolius, and R. chingii, was incongruent among gene trees. At the lower taxonomic levels, R. illecebrosus, R. grayanus, and the thornless species of sect. Microphylli showed earlier divergence.

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
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

We are grateful to Dr. Goro Kokubugata, Dr. Nobuyuki Tanaka, Mitsuru Ayabe, and Takahito Ideno for their help with the collection of leaf samples from botanical gardens, and to Dr. Hisato Kunitake, Dr. Yoichiro Hoshino, Michiharu Kato, and Dr. Shuri Kato for providing samples for this study. We also thank Ayana Okada and Akiko Hisamatsu for their support and contribution to the laboratory work. Dr. Hiroshi Yoshimaru, Kensuke Yoshimura, Yasuko Kawamata, and Chisako Furusawa are gratefully acknowledged for providing DNA samples and sequence data from the DNA-barcoding project. Our colleague, Dr. James Worth, kindly provided valuable comments that greatly improved the manuscript. We would like to thank Editage (www.editage.com) for English language editing.

Funding

This study received financial support from the Japanese Society for the Promotion of Science (JSPS KAKENHI Grant Numbers 20248017, 25292098, and 17K07571).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Satoshi Kikuchi.

Ethics declarations

Conflict of interest

The authors declare that they do have no conflict of interest.

Additional information

Handling editor: Yunpeng Zhao.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Information on Electronic Supplementary Material

Information on Electronic Supplementary Material

Online Resource 1. List of samples.

Online Resource 2. Primers used in this study.

Online Resource 3. List of data from published studies.

Online Resource 4. Best-fit models of substitution.

Online Resource 5. ITS phylogenies based on BI and ML methods.

Online Resource 6. Chloroplast phylogenies based on BI and ML methods.

Online Resource 7. Partial chloroplast phylogenies based on BI and ML methods.

Online Resource 8. Marginal likelihood estimates of each molecular clock model.

Online Resource 9. The results of ancestral trait reconstruction.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kikuchi, S., Mimura, M., Naruhashi, N. et al. Phylogenetic inferences using nuclear ribosomal ITS and chloroplast sequences provide insights into the biogeographic origins, diversification timescales and trait evolution of Rubus in the Japanese Archipelago. Plant Syst Evol 308, 20 (2022). https://doi.org/10.1007/s00606-022-01810-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00606-022-01810-6

Keywords

Navigation