ArticleGenes & genomics2020
Chloroplast genomic comparison of two sister species Allium macranthum and A. fasciculatum provides valuable insights into adaptive evolution.
Article in Genes & genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 12 citations in OpenAlex.
- Characterization and comparative analysis of the complete chloroplast genomes of twelve Allium species from Kazakhstan.Scientific reports · 2026Article
- Phylogeny, structural patterns, and polymorphisms inFrontiers in plant science · 2025Article
- Analysis of chloroplast genome structure and phylogeny of the traditional medicinal of Ardisia crispa (Myrsinaceae).Scientific reports · 2024Article
- The Complete Chloroplast Genomes of Nine Smilacaceae Species from Hong Kong: Inferring Infra- and Inter-Familial Phylogeny.International journal of molecular sciences · 2023Article
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- Assembly of the durian chloroplast genome using long PacBio reads.Scientific reports · 2020Article
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5 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundAllium macranthum and Allium fasciculatum are two sister species and their natural populations are separated by high mountains and deep valleys with exact opposite habitat. The chloroplast genome in angiosperms has showed useful for investigating plant evolution and systematic studies.
objectiveComparative analysis of these genomes revealed potential markers and phylogenetic analysis, and discuss the influence of positive selected sites on adaptive evolution.
methodsHere, we sequenced the complete chloroplast genomes of these two species and analyzed the repeat sequences components, nucleotide diversity, selection pressure and the phylogeny relationships with related species.
resultsA typical quadripartite structure was detected with a genome size changed from 152,148 to 152,931 bp. We identified 67 and 79 simple sequence repeats in A. macranthum and A. fasciculatum, in which the mono-nucleotide repeats A/T possess the highest percentage. Three mutational hotspots (rpl32, rps16 and matK) at the SSC and LSC regions were observed, which showed remarkably higher Pi value (> 0.03). Additionally, eight genes (rpoA, atpF, cemA, rps4, ccsA, rpoC2, rpl14 and clpP) exhibited elevated pairwise Ka/Ks ratios in alpine species. Phylogenetic analyses based on the CDS sequences and the whole complete genomes showed same topologies with high support, and A. macranthum was closely clustered with A. fasciculatum within the fourteen Amaryllidaceae species.
conclusionTheir coding proteins of these genes often functioned in chloroplast protein synthesis, gene transcription, energy transformation and regulation and photosynthesis. These results provide valuable insights into the alpine species adaptation and evolution.
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