Evidence map›Paper›PMID 39821447›Full record

ArticlePlanta2025

Comparative analysis of the complete chloroplast genome of seven Wikstroemia taxa (Thymelaeaceae) provides insights into the genome structure and phylogenetic relationships.

Chaoqiang Zhang, Jinglong Li, Fang Yan, Zhaofeng Wang, Xiucun Zeng, Jiayin Zhang

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Planta, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Chemotaxonomic Insights into KoreanPlants (Basel, Switzerland) · 2025
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Chaoqiang ZhangCollege of Life Sciences and Engineering, Hexi University, Zhangye, 734000, Gansu, China.
Jinglong LiSchool of Life Sciences, Inner Mongolia University, Hohhot, 010070, Inner Mongolia, China.
Fang YanApplied Technology Research Institute on Original Plants for Zushima of Hexi University, Zhangye, 734000, Gansu, China.
Zhaofeng WangCollege of Bioengineering and Biotechnology, Tianshui Normal University, Tianshui, 741001, Gansu, China.
Xiucun ZengCollege of Life Sciences and Engineering, Hexi University, Zhangye, 734000, Gansu, China.
Jiayin ZhangMinistry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Institute of Biodiversity Science, Fudan University, Shanghai, 200438, China. 20210700113@fudan.edu.cn.ORCID http://orcid.org/0000-0003-1369-098X

Funding

Doctoral Start-up Foundation of Hexi University KYQD2022013National College Students Innovation and Entrepreneurship Training Program 202210740073Science Fund for Distinguished Young Scholars of Gansu Province 2022QB-153the National Natural Science Foundation of China No. 32260472the Natural Science Foundation of Gansu Province, China 22JR11RG225the Technology Innovation Guidance Program Project of Gansu Provincial "Research and Popularization of Ecological Planting Techniques for Economic Shrubs Daphne tangutica Maxim. in Qilian Mountains" 22CX8NA071
6 · The paper itself

Abstract

MAIN

conclusionNew insights into the phylogeny of species in the family Thymelaeaceae and support of the recognition of D. genkwa and D. aurantiaca as species in the genus Wikstroemia are provided. Wikstroemia (Thymelaeaceae) is an economically important genus because some of its species are used in traditional medicine and also contribute to pulp production. The morphological characteristics of Wikstroemia species exhibit continuous natural variation, posing a challenge in accurately distinguishing this genus from its sister genera solely based on morphological traits. Consequently, the classification of, and phylogenetic relationships between, Wikstroemia and its sister genera, as inferred from morphological characteristics, remain contentious. Chloroplast genome information has proven to be a valuable tool in plant phylogeny. Here, we performed a comparative analysis of the chloroplast genomes of 15 species in the genus Wikstroemia, all of which exhibited typical quadripartite structures, with sizes ranging from 150,054 bp to 175,898bp. These genomes encoded 122-143 genes, including 79-95 protein-coding genes, 36-40 tRNA genes, and 8 rRNA genes. The overall GC content displayed minimal variation, ranging from 36.6% to 37.47%. The distributions of SSRs and codon bias exhibited similarities among Wikstroemia species. High variability hotspots were found in 15 intergenic spacers and 5 genes. Phylogenetic analyses consistently grouped all Wikstroemia species into a single clade. Notably, Daphne genkwa and D. aurantiaca were found to be nested within Wikstroemia, rather than being closely related to other Daphne species. Furthermore, phylogenetic analyses suggested that Wikstroemia is paraphyletic relative to Stellera chamaejasme. These findings provide new insights into the phylogeny of Wikstroemia and Daphne within the Thymelaeaceae, contributing to improved species identification and increasing the taxonomic and phylogenetic resolution of Wikstroemia.

Indexed as

Genome, ChloroplastPhylogenyBase CompositionChloroplast genomeDNA barcodingPhylogenetic relationshipsPlastome evolutionWikstroemia

Identifiers

PMID39821447

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.