ArticleBMC plant biology2016
Genetic origin and composition of a natural hybrid poplar Populus × jrtyschensis from two distantly related species.
Article in BMC plant biology, 2016. 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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18 citing papers in PubMed.
- Integrating morphology, nuclear SSR, and chloroplast genomes to investigate hybrid origin and species delimitation in the Lycium barbarum L. and its varieties in China.BMC ecology and evolution · 2026Article
- Spectroscopic characterization of natural dye derived from hybrid poplar waste leaves to enhance the optical characteristics of PVA biopolymer.BMC chemistry · 2026Article
- 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
- Whole-genome sequencing of Russian poplars to understand relationships within the genusFrontiers in plant science · 2025Article
- Phylogeographic analysis reveals multiple origins of the desert shrubEcology and evolution · 2024Article
- The Complex Genetic Legacy of Hybridization and Introgression between the RarePlants (Basel, Switzerland) · 2024Article
- Across two phylogeographic breaks: Quaternary evolutionary history of a mountain aspen (Plant diversity · 2024Article
- Sex-determining region complements traditionally used in phylogenetic studies nuclear and chloroplast sequences in investigation ofFrontiers in plant science · 2023Article
- Extensive Sympatry and Frequent Hybridization of Ecologically Divergent Aquatic Plants on the Qinghai-Tibetan Plateau.Frontiers in plant science · 2022Article
- Phylogenomics and Biogeography ofFrontiers in plant science · 2022Article
- Genome Assembly and Sex-Determining Region of Male and FemaleFrontiers in plant science · 2021Article
- Genome and Transcriptome Sequencing ofFrontiers in genetics · 2021Article
- Drought and freezing vulnerability of the isolated hybrid aspenEcology and evolution · 2019Article
- Genetic analysis of admixture and hybrid patterns of Populus hopeiensis and P. tomentosa.Scientific reports · 2019Article
- Strong population bottleneck and repeated demographic expansions of Populus adenopoda (Salicaceae) in subtropical China.Annals of botany · 2018Article
- Taxonomic status ofPhytoKeys · 2018Article
- Species Delimitation and Lineage Separation History of a Species Complex of Aspens in China.Frontiers in plant science · 2017Article
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6 authors.
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Abstract
backgroundThe factors that contribute to and maintain hybrid zones between distinct species are highly variable, depending on hybrid origins, frequencies and fitness. In this study, we aimed to examine genetic origins, compositions and possible maintenance of Populus × jrtyschensis, an assumed natural hybrid between two distantly related species. This hybrid poplar occurs mainly on the floodplains along the river valleys between the overlapping distributions of the two putative parents.
resultsWe collected 566 individuals from 45 typical populations of P. × jrtyschensis, P. nigra and P. laurifolia. We genotyped them based on the sequence variations of one maternally inherited chloroplast DNA (cpDNA) fragment and genetic polymorphisms at 20 SSR loci. We further sequenced eight nuclear genes for 168 individuals from 31 populations. Two groups of cpDNA haplotypes characteristic of P. nigra and P. laurifolia respectively were both recovered for P. × jrtyschensis. Genetic structures and coalescent tests of two sets of nuclear population genetic data suggested that P. × jrtyschensis originated from hybridizations between the two assumed parental species. All examined populations of P. × jrtyschensis comprise mainly F1 hybrids from interspecific hybridizations between P. nigra and P. laurifolia. In the habitats of P. × jrtyschensis, there are lower concentrations of soil nitrogen than in the habitats occupied by the other two species.
conclusionsOur extensive examination of the genetic composition of P. × jrtyschensis suggested that it is typical of F1-dominated hybrid zones. This finding plus the low concentration of soil nitrogen in the floodplain soils support the F1-dominated bounded hybrid superiority hypothesis of hybrid zone maintenance for this particular hybrid poplar.
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