1
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Development of a large set of diagnostic SNP markers using ddRAD-seq to study hybridization in Rhinanthus major and R. minor (Orobanchaceae). CONSERV GENET RESOUR 2021. [DOI: 10.1007/s12686-020-01181-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2
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Moreira-Hernández JI, Muchhala N. Importance of Pollinator-Mediated Interspecific Pollen Transfer for Angiosperm Evolution. ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS 2019. [DOI: 10.1146/annurev-ecolsys-110218-024804] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Understanding how pollen moves between species is critical to understanding speciation, diversification, and evolution of flowering plants. For co-flowering species that share pollinators, competition through interspecific pollen transfer (IPT) can profoundly impact floral evolution, decreasing female fitness via heterospecific pollen deposition on stigmas and male fitness via pollen misplacement during visits to heterospecific flowers. The pollination literature demonstrates that such reproductive interference frequently selects for reproductive character displacement in floral traits linked to pollinator attraction, pollen placement, and mating systems and has also revealed that IPT between given pairs of species is typically asymmetric. More recent work is starting to elucidate its importance to the speciation process, clarifying the link between IPT and current and historical patterns of hybridization, the evolution of phenotypic novelty through adaptive introgression, and the rise of reproductive isolation. Our review aims to stimulate further research on IPT as a ubiquitous mechanism that plays a central role in angiosperm diversification.
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Affiliation(s)
- Juan Isaac Moreira-Hernández
- Department of Biology and Whitney R. Harris World Ecology Center, University of Missouri–St. Louis, St. Louis, Missouri 63121, USA;,
| | - Nathan Muchhala
- Department of Biology and Whitney R. Harris World Ecology Center, University of Missouri–St. Louis, St. Louis, Missouri 63121, USA;,
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3
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Wesselingh RA, Hořčicová Š, Mirzaei K. Fitness of reciprocal F
1
hybrids between
Rhinanthus minor
and
Rhinanthus major
under controlled conditions and in the field. J Evol Biol 2019; 32:931-942. [DOI: 10.1111/jeb.13492] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/25/2019] [Accepted: 05/24/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Renate A. Wesselingh
- Biodiversity Research Centre Earth and Life Institute UCLouvain Louvain‐la‐Neuve Belgium
| | - Šárka Hořčicová
- Department of Botany Faculty of Science University of South Bohemia České Budějovice Czech Republic
| | - Khaled Mirzaei
- Biodiversity Research Centre Earth and Life Institute UCLouvain Louvain‐la‐Neuve Belgium
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4
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Wang X, Gussarova G, Ruhsam M, de Vere N, Metherell C, Hollingsworth PM, Twyford AD. DNA barcoding a taxonomically complex hemiparasitic genus reveals deep divergence between ploidy levels but lack of species-level resolution. AOB PLANTS 2018; 10:ply026. [PMID: 29765588 PMCID: PMC5941139 DOI: 10.1093/aobpla/ply026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 04/20/2018] [Indexed: 05/18/2023]
Abstract
DNA barcoding is emerging as a useful tool not only for species identification but also for studying evolutionary and ecological processes. Although plant DNA barcodes do not always provide species-level resolution, the generation of large DNA barcode data sets can provide insights into the mechanisms underlying the generation of species diversity. Here, we study evolutionary processes in taxonomically complex British Euphrasia (Orobanchaceae), a group with multiple ploidy levels, frequent self-fertilization, young species divergence and widespread hybridization. We use a phylogenetic approach to investigate the colonization history of British Euphrasia, followed by a DNA barcoding survey and population genetic analyses to reveal the causes of shared sequence variation. Phylogenetic analysis shows Euphrasia have colonized Britain from mainland Europe on multiple occasions. DNA barcoding reveals that no British Euphrasia species has a consistent diagnostic sequence profile, and instead, plastid haplotypes are either widespread across species, or are population specific. The partitioning of nuclear genetic variation suggests differences in ploidy act as a barrier to gene exchange, while the divergence between diploid and tetraploid ITS sequences supports the polyploids being allotetraploid in origin. Overall, these results show that even when lacking species-level resolution, analyses of DNA barcoding data can reveal evolutionary patterns in taxonomically complex genera.
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Affiliation(s)
- Xumei Wang
- School of Pharmacy, Xi’an Jiaotong University, Xi’an, P.R. China
| | - Galina Gussarova
- Tromsø University Museum, UiT The Arctic University of Norway, Langnes, Tromsø, Norway
- CEES-Centre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, Blindern, Oslo, Norway
- Department of Botany, Faculty of Biology, St Petersburg State University, Universitetskaya nab., Russia
| | | | - Natasha de Vere
- National Botanic Garden of Wales, Llanarthne, Carmarthenshire, UK
- Institute of Biological, Environmental & Rural Sciences (IBERS), Aberystwyth University, Penglais, Aberystwyth, Ceredigion, UK
| | | | | | - Alex D Twyford
- University of Edinburgh, Institute of Evolutionary Biology, Edinburgh, UK
- Corresponding author’s e-mail address:
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5
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Těšitel J, Mládek J, Horník J, Těšitelová T, Adamec V, Tichý L. Suppressing competitive dominants and community restoration with native parasitic plants using the hemiparasiticRhinanthus alectorolophusand the dominant grassCalamagrostis epigejos. J Appl Ecol 2017. [DOI: 10.1111/1365-2664.12889] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jakub Těšitel
- Faculty of Science; University of South Bohemia; Branišovská 1760 České Budějovice 370 05 Czech Republic
| | - Jan Mládek
- Faculty of Science; University of South Bohemia; Branišovská 1760 České Budějovice 370 05 Czech Republic
- Department of Ecology & Environmental Sciences; Faculty of Science; Palacký University; Šlechtitelů 241/27 Olomouc 783 71 Czech Republic
| | - Jan Horník
- Nature Conservation Agency of the Czech Republic; Kaplanova 1931/1 Praha 148 00 Czech Republic
- NGO Centaurea - Society for Landscape Monitoring and Management; Stolany 53 Heřmanův Městec 538 03 Czech Republic
| | - Tamara Těšitelová
- Faculty of Science; University of South Bohemia; Branišovská 1760 České Budějovice 370 05 Czech Republic
| | - Vojtěch Adamec
- Faculty of Science; University of South Bohemia; Branišovská 1760 České Budějovice 370 05 Czech Republic
| | - Lubomír Tichý
- Department of Botany and Zoology; Masaryk University; Kotlářská 2 CZ-611 37 Brno Czech Republic
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6
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Talve T, Mürk M, Lindell T, Oja T. Rhinanthus plants found in calcareous fens on Gotland (Sweden): Are they related to Rhinanthus osiliensis from Saaremaa (Estonia)? BIOCHEM SYST ECOL 2014. [DOI: 10.1016/j.bse.2014.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Sovic MG, Kubatko LS, Fuerst PA. The effects of locus number, genetic divergence, and genotyping error on the utility of dominant markers for hybrid identification. Ecol Evol 2014; 4:462-73. [PMID: 24634730 PMCID: PMC3936392 DOI: 10.1002/ece3.833] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 09/03/2013] [Accepted: 09/06/2013] [Indexed: 11/27/2022] Open
Abstract
In surveys of hybrid zones, dominant genetic markers are often used to identify individuals of hybrid origin and assign these individuals to one of several potential hybrid classes. Quantitative analyses that address the statistical power of dominant markers in such inference are scarce. In this study, dominant genotype data were simulated to evaluate the effects of, first, the number of loci analyzed, second, the magnitude of differentiation between the markers scored in the groups that are hybridizing, and third, the level of genotyping error associated with the data when assigning individuals to various parental and hybrid categories. The overall performance of the assignment methods was relatively modest at the lowest level of divergence examined (Fst ˜ 0.4), but improved substantially at higher levels of differentiation (Fst ˜ 0.67 or 0.8). The effect of genotyping error was dependent on the level of divergence between parental taxa, with larger divergences tempering the effects of genotyping error. These results highlight the importance of considering the effects of each of the variables when assigning individuals to various parental and hybrid categories, and can help guide decisions regarding the number of loci employed in future hybridization studies to achieve the power and level of resolution desired.
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Affiliation(s)
- Michael G Sovic
- Department of Evolution, Ecology, and Organismal Biology, 314 Aronoff Laboratory, The Ohio State University 318 W. 12th Ave, Columbus, Ohio, 43210
| | - Laura S Kubatko
- Departments of Statistics and Evolution, Ecology, and Organismal Biology, The Ohio State University 404 Cockins Hall, 1958 Neil Ave., Columbus, Ohio, 43210
| | - Paul A Fuerst
- Department of Evolution, Ecology, and Organismal Biology, 386 Aronoff Laboratory, The Ohio State University 318 W. 12th Ave, Columbus, Ohio, 43210
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8
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Talve T, McGlaughlin ME, Helenurm K, Wallace LE, Oja T. Population genetic diversity and species relationships in the genus Rhinanthus L. based on microsatellite markers. PLANT BIOLOGY (STUTTGART, GERMANY) 2014; 16:495-502. [PMID: 23889942 DOI: 10.1111/plb.12057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 05/01/2013] [Indexed: 06/02/2023]
Abstract
The genus Rhinanthus L. is complex, containing many taxonomically unresolved taxa. In this paper we studied genetic variation and species relationships in 15 populations of six Rhinanthus species from three sections. For this purpose, we developed new microsatellite primers for R. osiliensis and used them to investigate genetic variation in two narrow endemics (R. osiliensis, R. javorkae) and in four widespread species (R. rumelicus R. wagneri, R. angustifolius and R. minor). Species-specific private alleles were found in all species except R. osiliensis and R. angustifolius. The Bulgarian endemic R. javorkae showed the lowest genetic variation, followed by widespread R. minor and Estonian endemic R. osiliensis. Rhinanthus javorkae and R. minor were genetically most differentiated. Section Cleistolemus is weakly structured genetically, indicating close affinity between R. osiliensis, R. rumelicus, R. wagneri and R. angustifolius.
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Affiliation(s)
- T Talve
- Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
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9
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Ducarme V, Wesselingh RA. Outcrossing rates in two self-compatible, hybridising Rhinanthus species: implications for hybrid formation. PLANT BIOLOGY (STUTTGART, GERMANY) 2013; 15:541-547. [PMID: 23127208 DOI: 10.1111/j.1438-8677.2012.00668.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The congeners Rhinanthus angustifolius and Rhinanthus minor, two annual hemiparasites pollinated by bumblebees, are known to hybridise in the wild. Both species are self-compatible, but the capacity for autonomous selfing is higher in R. minor. This suggests a difference in realized outcrossing rates, which have not been determined before in these species. Using microsatellites, both species turned out to have mixed mating systems, but with a much lower multilocus outcrossing rate (0.13) for R. minor compared to R. angustifolius (0.76). We hypothesised that a higher outcrossing rate should lead to a higher chance of heterospecific pollination, and we therefore determined the rate of hybrid formation on each species in an artificial mixed population. Hybrid seeds were produced at low frequency (4.5%), and no significant difference was found between the species. It is therefore likely that post-pollination processes influence hybrid seed formation to counteract the expected difference in heterospecific pollen deposition. We checked fruit set, seed set and the rate of autonomous selfing in controlled crosses in the greenhouse in 2 years, and found that fruit set (2003) or seed set (2010) were lower in R. angustifolius × R. minor crosses relative to the reciprocal cross. Hybrid seeds produced on R. angustifolius also had a much lower germination rate, so most of the established F1 hybrid plants have the R. minor cytoplasm. The formation of advanced hybrids depends on pollinator preference, which is biased towards R. angustifolius if present in sufficient numbers, because it offers more rewards.
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Affiliation(s)
- V Ducarme
- Biodiversity Research Centre, Earth & Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
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10
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Natalis LC, Wesselingh RA. PARENTAL FREQUENCIES AND SPATIAL CONFIGURATION SHAPE BUMBLEBEE BEHAVIOR AND FLORAL ISOLATION IN HYBRIDIZINGRHINANTHUS. Evolution 2013; 67:1692-705. [DOI: 10.1111/evo.12044] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 11/14/2012] [Indexed: 11/28/2022]
Affiliation(s)
- Laurent C. Natalis
- Biodiversity Research Centre, Earth and Life Institute; Université catholique de Louvain; Croix du Sud 4-5 Box L7.07.04 B-1348 Louvain-la-Neuve Belgium
| | - Renate A. Wesselingh
- Biodiversity Research Centre, Earth and Life Institute; Université catholique de Louvain; Croix du Sud 4-5 Box L7.07.04 B-1348 Louvain-la-Neuve Belgium
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11
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Natalis LC, Wesselingh RA. Post-pollination barriers and their role in asymmetric hybridization in Rhinanthus (Orobanchaceae). AMERICAN JOURNAL OF BOTANY 2012; 99:1847-1856. [PMID: 23092992 DOI: 10.3732/ajb.1200085] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
PREMISE OF THE STUDY Several barriers against hybrid formation exist, and their combined action can affect the evolutionary outcomes of hybridization. To explain the asymmetrical introgression observed between two bumblebee-pollinated plant species (Rhinanthus angustifolius and R. minor), we focused on post-pollination barriers and ethological isolation of hybrids. METHODS We studied pollen competition in conspecific and heterospecific crosses on both species and analyzed germination rates of hybrid and pure seeds. We also measured bumblebee visitation rates to hybrids relative to their parents using potted Rhinanthus placed in populations of each parental species. KEY RESULTS In mixed pollinations, there was a conspecific siring advantage in both species, but no difference in pollen tube growth rates in either cross type. F(1) seeds with a R. angustifolius maternal plant germinated poorly, while those with R. minor as the maternal parent germinated better than pure seeds. Interestingly, bumblebees treated hybrids almost as equal to the background species and more often rejected the nonresident Rhinanthus. In a R. angustifolius background, bumblebees preferred R. angustifolius, but visited hybrids more often than R. minor. In contrast, visitation rates were similar on a R. minor background. CONCLUSIONS Our results suggest that hybridization rates in Rhinanthus remain low because of several leaky barriers that make R. minor the maternal parent of most F(1) offspring. Preference for R. angustifolius and the equal treatment of F(1) and background species by bumblebees induce a visitation pattern that directs gene flow toward R. angustifolius when this species predominates.
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Affiliation(s)
- Laurent C Natalis
- Biodiversity Research Centre, Earth and Life Institute, Université catholique de Louvain, Croix du Sud 4-5, Box L7.07.04, B-1348 Louvain-la-Neuve, Belgium.
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