Related Experiment Video
Updated: May 25, 2026
10:23
A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
Published on: July 11, 2025
New generic classification for Korean Peucedanum L. (Apiaceae) species based on deep phylogenomic study
Yeseul Kim1, Kyeonghee Kim2, Heewon Ji3
1Department of Biology, Changwon National University, Changwon, 51140, Republic of Korea.
BMC Plant Biology
|May 23, 2026
Summary
This study resolves the complex taxonomy of Korean Peucedanum using plastome data and morphology, reassigning species to Kitagawia and Sinopeucedanum, and revealing rapid diversification within the Apiaceae family.
Area of Science:
- Botany
- Phylogenetics
- Evolutionary Biology
Background:
- The genus Peucedanum (Apiaceae) exhibits complex taxonomic relationships and unresolved phylogenetic positions, particularly for Korean taxa.
- Morphological convergence and limited molecular data have hindered previous taxonomic clarifications.
Purpose of the Study:
- To clarify the phylogenetic relationships and taxonomic status of Korean Peucedanum taxa.
- To investigate the evolutionary history and diversification patterns within the genus.
Main Methods:
- Generated complete plastome sequences for 13 Korean accessions representing 12 taxa.
- Conducted comparative plastome analyses, including size, inverted repeat boundaries, and repeat content.
- Performed phylogenomic reconstruction and molecular dating.
- Analyzed mericarp anatomical characteristics.
Main Results:
- Phylogenomic reconstruction confirmed the polyphyly of Peucedanum, resolving three distinct clades.
- Ten Korean taxa were resolved as a monophyletic group within Kitagawia; P. japonicum clustered with Sinopeucedanum.
- Plastome structural variations and mericarp morphology supported the phylogenetic findings.
- Molecular dating indicated rapid diversification within Apioideae from the Late Miocene to Quaternary, with clade divergences around 3.50, 3.27, and 2.29 MYA.
Conclusions:
- An integrative approach combining molecular and morphological data supports the transfer of most Korean Peucedanum taxa to Kitagawia.
- P. japonicum is reassigned to Sinopeucedanum.
- The study underscores the importance of integrated evidence for resolving taxonomic ambiguities and understanding diversification in Apiaceae.
Related Concept Videos
01:22Phylogenetic Species Concept in Microbiology
The phylogenetic species concept (PSC) is a framework used to delineate species based on evolutionary relationships, emphasizing shared ancestry and diagnosable genetic traits. Unlike morphological or biological species concepts, the PSC is particularly advantageous for microbial taxonomy, where traditional reproductive or phenotypic criteria often fall short due to the prevalence of asexual reproduction, minimal morphological differentiation, and widespread horizontal gene transfer among...
01:28Methods of Classification and Identification
Bacterial identification relies on a diverse array of techniques to classify and understand microorganisms, each tailored to uncover specific characteristics. Traditional morphological approaches, while still valuable, are limited for closely related or structurally simple organisms. Modern methods integrate biochemical, serological, genetic, and advanced molecular tools to achieve greater accuracy.Morphological and Biochemical TechniquesMorphological characteristics, such as cell shape and...
01:24Microbial Classification System
Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
02:54Evolutionary Relationships through Genome Comparisons
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
02:26Non-vascular Seedless Plants
The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.
01:23Phylogeny
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.