ArticleAnnals of botany2017
Origin and genetic differentiation of pink-flowered Sorbus hybrids in the Western Carpathians.
Article in Annals of botany, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Total Phenolic and Total Flavonoid Content, Individual Phenolic Compounds and Antioxidant Activity in Sweet Rowanberry Cultivars.Antioxidants (Basel, Switzerland) · 2023Article
- Apomictic Mountain Whitebeam (Biology · 2023Article
- Reproduction Modes and Conservation Implications in Three PolyploidPlants (Basel, Switzerland) · 2023Article
- Genome Size, Cytotype Diversity and Reproductive Mode Variation ofPlants (Basel, Switzerland) · 2021Article
- Hybridization and introgression of native and foreignAoB PLANTS · 2021Article
- Speciation by triparental hybridization in genus Sorbus (Rosaceae).Biologia futura · 2020Article
- The morphometrics of autopolyploidy: insignificant differentiation among sexual-apomictic cytotypes.AoB PLANTS · 2019Article
- Polyploidy and interspecific hybridization: partners for adaptation, speciation and evolution in plants.Annals of botany · 2017Review
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Authors and funding
6 authors.
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Abstract
Background and Aims: Diversity of the genus Sorbus has been affected by interspecific hybridizations. Pink-flowered hybrid species have been insufficiently studied so far. They comprise bigenomic hybrid species derived from crosses S. aria s.l. × S. chamaemespilus and trigenomic ones, where S. aucuparia was involved as well. The main objective of the present study was to reconstruct their hybrid origins as well as to assess genetic distinction among several morphologically recognized hybrid species. Methods: Samples from putative maternal species and eight pink-flowered and two white-flowered hybrid species were collected in the Western Carpathians and the Sudetes. In total, 370 specimens were analysed. Six chloroplast microsatellites were used to infer parentage, whereas nuclear amplified fragment length polymorphism (AFLP) markers were employed for the identification of clones and patterns of genetic variation. Ploidy levels were estimated by flow cytometry on a subset of 140 individuals. Key Results: Genetic data supported their hybrid origins proposed based on flower and leaf morphology, and chloroplast DNA (cpDNA) revealed recurrent origins ( S. caeruleomontana , S. haljamovae ), even from bidirectional hybridization events ( S. zuzanae ). All bigenomic and trigenomic hybrid species (except triploid S. zuzanae ) were found to be tetraploid. In addition to polyploidy, low genetic variation and the presence of clones within and among populations were observed, suggesting predominantly apomictic reproduction of the hybrid species. Most of the described hybrid species appeared also genetically distinct. Conclusions: The data suggest that multiple hybridization events in the Western Carpathian Sorbus have led to the formation of separate, partially reproductively isolated genetic lineages, which may or may not be discriminated morphologically. Even bidirectional hybridization can produce individuals classified to the same taxon based on phenotype. For some hybrid taxa, hybridization pathways were proposed based on their genetic proximity to parental species and differences in genome sizes.
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