ArticleEcology and evolution2015
Hybridization in closely related Rhododendron species: half of all species-differentiating markers experience serious transmission ratio distortion.
Article in Ecology and evolution, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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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.
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Who cites it
9 citing papers in PubMed, 18 citations in OpenAlex.
- Natural hybridization among three Rhododendron species (Ericaceae) revealed by morphological and genomic evidence.BMC plant biology · 2021Article
- The natural hybridization between speciesAoB PLANTS · 2021Article
- Species Identification in theFrontiers in plant science · 2021Article
- Comparative population genetic analyses suggest hybrid origin ofPlant diversity · 2020Article
- A Genomewide Scan for Genetic Structure and Demographic History of Two Closely Related Species,Frontiers in plant science · 2020Article
- Homoploid hybridization of plants in the Hengduan mountains region.Ecology and evolution · 2019Review
- Asymmetrical natural hybridization varies among hybrid swarms between two diploid Rhododendron species.Annals of botany · 2017Article
- Strong reproductive isolation despite occasional hybridization between a widely distributed and a narrow endemic Rhododendron species.Scientific reports · 2016Article
- Why is population information crucial for taxonomy? A case study involving a hybrid swarm and related varieties.AoB PLANTS · 2016Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
An increasing number of studies of hybridization in recent years have revealed that complete reproductive isolation between species is frequently not finalized in more or less closely related organisms. Most of these species do, however, seem to retain their phenotypical characteristics despite the implication of gene flow, highlighting the remaining gap in our knowledge of how much of an organism's genome is permeable to gene flow, and which factors promote or prevent hybridization. We used AFLP markers to investigate the genetic composition of three populations involving two interfertile Rhododendron species: two sympatric populations, of which only one contained hybrids, and a further hybrid-dominated population. No fixed differences between the species were found, and only 5.8% of the markers showed some degree of species differentiation. Additionally, 45.5% of highly species-differentiating markers experienced significant transmission distortion in the hybrids, which was most pronounced in F1 hybrids, suggesting that factors conveying incompatibilities are still segregating within the species. Furthermore, the two hybrid populations showed stark contrasting composition of hybrids; one was an asymmetrically backcrossing hybrid swarm, while in the other, backcrosses were absent, thus preventing gene flow.
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