Comparative plastomics of ashwagandha (Withania, Solanaceae) and identification of mutational hotspots for barcoding medicinal plants

Furrukh Mehmood, Abdullah, Zartasha Ubaid, Yiming Bao, Péter Poczai, Bushra Mirza

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Within the family Solanaceae, Withania is a small genus belonging to the Solanoideae subfamily. Here, we report the de novo assembled chloroplast genome sequences of W. coagulans, W. adpressa, and W. riebeckii. The length of these genomes ranged from 154,162 to 154,364 base pairs (bp). These genomes contained a pair of inverted repeats (IRa and IRb) ranging from 25,029 to 25,071 bp that were separated by a large single-copy (LSC) region of 85,635-85,765 bp and a small single-copy (SSC) region of 18,457-18,469 bp. We analyzed the structural organization, gene content and order, guanine-cytosine content, codon usage, RNA-editing sites, microsatellites, oligonucleotide and tandem repeats, and substitutions of Withania plastomes, which revealed high similarities among the species. Comparative analysis among the Withania species also highlighted 10 divergent hotspots that could potentially be used for molecular marker development, phylogenetic analysis, and species identification. Furthermore, our analyses showed that even three mutational hotspots (rps4-trnT, trnM-atpE, and rps15) were sufficient to discriminate the Withania species included in current study.
Original languageEnglish
Article number752
JournalPlants
Volume9
Issue number6
Number of pages20
ISSN2223-7747
DOIs
Publication statusPublished - 15 Jun 2020
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 1181 Ecology, evolutionary biology
  • ashwagandha
  • chloroplast genome
  • indels
  • medicinal plants
  • mutational hotspots
  • phylogenomics
  • Solanaceae
  • substitutions
  • Withania
  • CHLOROPLAST GENOME
  • PHYLOGENETIC ANALYSIS
  • GENES
  • MODEL
  • WILD
  • ORGANIZATION
  • ANGIOSPERMS
  • SOMNIFERA
  • SELECTION
  • DYNAMICS
  • 317 Pharmacy

Cite this