The systematic position of Archihyoscyamus A.M.Lu (Solanaceae Juss.): an analysis based on nuclear and plastid sequences

ABSTRACT

In the present study, 18 species from tribe Hyoscyameae (Solanaceae) representing all morphological sections were analyzed using sequences of the nuclear ribosomal internal transcribed spacer region and the plastid psbA-trnH, ndhF, and trnL-F markers. Our analyses undoubtedly demonstrated a sister group relationship between Archihyoscyamus A.M.Lu and Hyoscyamus L. The affinities with Hyoscyamus indicated by these analyses have been previously suggested based on morphological characters. Considering its uniqueness in a few characters (e.g. cushion form, high number of druse crystals in the leaf mesophyll, and seed morphological characters), we recognize Archihyoscyamus as a monotypic genus of Hyoscyameae. Our analyses indicated that all of the five genera and monophyletic and Atropa L. is basal.

KEYWORDS:

• Archihyoscyamus
• classification
• Hyoscyameae
• molecular phylogenetics
• cpDNA
• nrDNA ITS

Acknowledgments

We gratefully acknowledge the kind help of the director and curators of P Herbarium (Muséum National d’Histoire Naturelle) for access to the plant specimens. Thanks are given to the reviewers for their instructive comments and suggestions.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study is supported by the Research and Technology Deputy of Kharazmi University (Project NO. 4/203031: “Monophyly of the genus Archihyoscyamus (Hyoscyameae; Solanaceae) using molecular data”) to the F.Ghahremaninejad.