Evidence map›Paper›PMID 37150831›Full record

ArticleBMC plant biology2023

The plastome reveals new insights into the evolutionary and domestication history of peonies in East Asia.

Qihang Chen, Le Chen, Jaime A Teixeira da Silva, Xiaonan Yu

Abstract read
In one paragraph

Article in BMC plant biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
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8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. The Complete Chloroplast Genome ofEcology and evolution · 2025
    Article
  2. Article
  3. Article
  4. The chloroplast genome of the allotriploid,Mitochondrial DNA. Part B, Resources · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. The complete chloroplast genome of the first registeredMitochondrial DNA. Part B, Resources · 2024
    Article
4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Qihang ChenCollege of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China.
Le ChenCollege of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China.
Jaime A Teixeira da SilvaIndependent researcher, Ikenobe 3011-2, Kagawa-ken, 761-0799, Japan.
Xiaonan YuCollege of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China. yuxiaonan626@126.com.

Funding

National Natural Science Foundation of China 32071817
6 · The paper itself

Abstract

backgroudPaeonia holds considerable value in medicinal, ornamental horticultural, and edible oil industries, but the incomplete state of phylogenetic research in this genus poses a challenge to the effective conservation and development of wild germplasm, and also impedes the practical utilization of existing cultivars. Due to its uniparental inheritance and lack of recombination, the plastome (i.e., plastid genome), which is a valuable molecular marker for phylogenetic analyses, is characterized by an appropriate rate of nucleotide evolution.

methodsIn this study, 10 newly assembled data and available reported data were combined to perform a comparative genomics and phylogenetics analysis of 63 plastomes of 16 Paeonia species, primarily from East Asia, which is the origin and diversity center of Paeonia.

resultsRanging between 152,153 and 154,405 bp, most plastomes displayed a conserved structure and relatively low nucleotide diversity, except for six plastomes, which showed obvious IR construction or expansion. A total of 111 genes were annotated in the Paeonia plastomes. Four genes (rpl22, rps3, rps19 and ycf1) showed different copy numbers among accessions while five genes (rpl36, petN, psbI, rpl33 and psbJ) showed strong codon usage biases (ENC < 35). Additional selection analysis revealed that no genes were under positive selection during the domestication of tree peony cultivars whereas four core photosynthesis-related genes (petA, psaA, psaB and rbcL) were under positive selection in herbaceous peony cultivars. This discovery might contribute to the wide adaption of these cultivars. Two types of molecular markers (SSR and SNP) were generated from the 63 plastomes. Even though SSR was more diverse than SNP, it had a weaker ability to delimit Paeonia species than SNP. The reconstruction of a phylogenetic backbone of Paeonia in East Asia revealed significant genetic divergence within the P. ostii groups. Evidence also indicated that the majority of P. suffruticosa cultivars had a maternal origin, from P. ostii. The results of this research also suggest that P. delavayi var. lutea, which likely resulted from hybridization with P. ludlowii, should be classified as a lineage within the broader P. delavayi group.

conclusionsOverall, this study's research findings suggest that the Paeonia plastome is highly informative for phylogenetic and comparative genomic analyses, and could be useful in future research related to taxonomy, evolution, and domestication.

Indexed as

PaeoniaAsia, EasternDomesticationNucleotidesPhylogenyNucleotidesComparative genomicsCultivarPaeoniaPhylogeneticsPlastome

Identifiers

PMID37150831
PMCPMC10165817

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