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A new species of Barleria (Acanthaceae), its morphotaxonomy, cytogenetics and phylogenetic placement

  • Suraj S. Patil
  • Asif S. Tamboli
  • Shrirang R. Yadav
  • Manoj M. LekhakEmail author
Original Article
  • 68 Downloads

Abstract

A new species, Barleria lavaniana (Acanthaceae), is described and illustrated. It resembles B. longiflora but differs from it in the characters of calyx, stamen, style and stigma. Stem anatomy reveals that vessel elements are mostly angular with a short tail at one end and a long tail on the other end. Xylem rays are usually biseriate and xylem fibres relatively thin-walled. Interxylary phloem is generally characterized by a single companion cell. The somatic chromosome number was 2n = 2x = 40. The karyotype is moderately symmetrical and fell in Stebbins’ 3b category. Chromosomes have median and submedian region centromeres. Based on cpDNA data, the new species is placed in subgenus Barleria and shows phylogenetic affinity towards B. longiflora and B. acuminata. Our findings suggest the need for comprehensive phylogenetic analyses of the genus Barleria based on high-throughput sequencing data to understand species interrelationships and biogeography.

Keywords

Chromosomes Interxylary phloem Karyotype matrbc

Notes

Acknowledgements

Authors thank the Head, Department of Botany, Shivaji University, for providing necessary facilities. We are grateful to Dr. Kishore S. Rajput, Associate Professor, Department of Botany, The Maharaja Sayajirao University of Baroda, Vadodra, Gujarat 390002, for helping us with stem anatomy studies. SSP thanks Ministry of Environment, Forest and Climate Change, Govt. of India, for providing Junior Research Fellowship vide sanction letter F.No.10/04/2012-CS/BG dated 19/11/2013. AST thanks Council of Scientific and Industrial Research, New Delhi, for Senior Research Fellowship (SRF) (Award Number–09/816(0042)/2018-EMR-I and ACK No–113307/2K17/1). We are grateful to Dr. Shrikant P. Sutar, Department of Botany, Nowrosjee Wadia College, Maharashtra for the illustrations. We thank the reviewers for the critical comments that improved the content of the manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

606_2019_1613_MOESM1_ESM.pdf (340 kb)
Supplementary material 1 (PDF 340 kb)
606_2019_1613_MOESM2_ESM.txt (20 kb)
Supplementary material 2 (TXT 19 kb)

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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Angiosperm Taxonomy Laboratory, Department of BotanyShivaji UniversityKolhapurIndia
  2. 2.Department of BiochemistryShivaji UniversityKolhapurIndia

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