Discovery of Edible Medicinal Plant Platostoma Palustre in Traditional Food Production and Medicinal Applications

Strategic Insights -

Scientists at the Guangxi Academy of Agricultural Sciences in Nanning, People's Republic of China, have published research on the edible medicinal plant Platostoma palustre, highlighting its significant role in traditional food production and medicinal applications. The study, funded by the Special Project for Basic Research Business of Guangxi Academy of Agricultural Sciences and the Guangxi Science and Technology Project, revealed that the genetic basis of P. palustre is unclear, hindering research on its genome and polyploid evolution.

Key Takeaways:

  • Researchers identified three distinct cytotypes of P. palustre: diploid (2n = 2x = 30, x = 15), triploid (2n = 3x = 45, x = 15), and tetraploid (2n = 4x = 60, x = 15), using fluorescence in situ hybridization (FISH) with 35 S and 5 S rDNA probes.
  • Illumina sequencing and assembly of the chloroplast (CP) genome revealed a conserved single circular molecule with a length of 152,534 - 152,788 bp, comprising large single-copy and small single-copy regions separated by two inverted repeat regions.
  • Phylogenetic trees created based on CP and nuclear molecular markers showed that most P. palustre accessions clustered together corresponding to their collection regions, with some accessions suggesting a common ancestor with triploid accessions.
  • This study provides the first characterization of the karyotype, cytotype classification, and genetic diversity of P. palustre, with implications for further genomic studies and polyploid evolution.

Statistics:

  • The length of the CP genome is 152,534 - 152,788 bp.
  • The chloroplast (CP) genome has a similar structure across P. palustre accessions.
  • Phylogenetic trees show that most P. palustre accessions cluster together, indicating a genetic relationship between accessions from different regions.

Sources:

  • Cytotype classification and genetic diversity of Platostoma palustre revealed by rDNA localization and chloroplast genome. BMC Genomics, 2025;26(1):937.