ArticlePloS one2013
Barcoding poplars (Populus L.) from western China.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Advancing plant DNA barcoding: integrating chloroplast genome sequencing, cryptic diversity discovery and machine learning.Molecular biology reports · 2026Review
- Hybridization of Lycium qingshuiheense and L. ningxiaense revealed using morphological, SSR markers, and chloroplast genomic data.BMC genomics · 2025Article
- Species delimitation in theFrontiers in plant science · 2025Article
- Across two phylogeographic breaks: Quaternary evolutionary history of a mountain aspen (Plant diversity · 2024Article
- Phylogenomics revealPhytoKeys · 2024Article
- Article
- Analyzing the phylogeny of poplars based on molecular data.PloS one · 2018Article
- Taxonomic status ofPhytoKeys · 2018Article
- Comparative Analysis of the Complete Chloroplast Genome of Four Endangered Herbals of Notopterygium.Genes · 2017Article
- Species Delimitation and Lineage Separation History of a Species Complex of Aspens in China.Frontiers in plant science · 2017Article
- Genetic origin and composition of a natural hybrid poplar Populus × jrtyschensis from two distantly related species.BMC plant biology · 2016Article
- The complete chloroplast genome of Cathay Poplar:Mitochondrial DNA. Part B, Resources · 2016Article
- Efficient Identification of the Forest Tree Species in Aceraceae Using DNA Barcodes.Frontiers in plant science · 2016Article
- Genome Sequences of Populus tremula Chloroplast and Mitochondrion: Implications for Holistic Poplar Breeding.PloS one · 2016Article
- Article
- Article
- The Use of DNA Barcoding in Identification and Conservation of Rosewood (Dalbergia spp.).PloS one · 2015Article
- DNA barcoding evaluation and its taxonomic implications in the species-rich genus Primula L. in China.PloS one · 2015Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPopulus is an ecologically and economically important genus of trees, but distinguishing between wild species is relatively difficult due to extensive interspecific hybridization and introgression, and the high level of intraspecific morphological variation. The DNA barcoding approach is a potential solution to this problem. METHODOLOGY/PRINCIPAL
findingsHere, we tested the discrimination power of five chloroplast barcodes and one nuclear barcode (ITS) among 95 trees that represent 21 Populus species from western China. Among all single barcode candidates, the discrimination power is highest for the nuclear ITS, progressively lower for chloroplast barcodes matK (M), trnG-psbK (G) and psbK-psbI (P), and trnH-psbA (H) and rbcL (R); the discrimination efficiency of the nuclear ITS (I) is also higher than any two-, three-, or even the five-locus combination of chloroplast barcodes. Among the five combinations of a single chloroplast barcode plus the nuclear ITS, H+I and P+I differentiated the highest and lowest portion of species, respectively. The highest discrimination rate for the barcodes or barcode combinations examined here is 55.0% (H+I), and usually discrimination failures occurred among species from sympatric or parapatric areas. CONCLUSIONS/SIGNIFICANCE: In this case study, we showed that when discriminating Populus species from western China, the nuclear ITS region represents a more promising barcode than any maternally inherited chloroplast region or combination of chloroplast regions. Meanwhile, combining the ITS region with chloroplast regions may improve the barcoding success rate and assist in detecting recent interspecific hybridizations. Failure to discriminate among several groups of Populus species from sympatric or parapatric areas may have been the result of incomplete lineage sorting, frequent interspecific hybridizations and introgressions. We agree with a previous proposal for constructing a tiered barcoding system in plants, especially for taxonomic groups that have complex evolutionary histories (e.g. Populus).
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