The invasion of Senecio pterophorus across continents: multiple, independent introductions, admixture and hybridization

Vilatersana, Roser; Sanz, María; Galián, Almudena; Castells, Eva

doi:10.1007/s10530-016-1150-1

Cited by 14 publications

(9 citation statements)

References 82 publications

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“…The AFLP procedure followed the protocol of Vos et al [46] as modified by Vilatersana et al [47]. About 250 ng of genomic DNA was used for the restriction reaction.…”

Section: Methodsmentioning

confidence: 99%

Reinterpretation of an endangered taxon based on integrative taxonomy: The case of Cynara baetica (Compositae)

2018

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The Strait of Gibraltar, the gateway between the Atlantic Ocean and the Mediterranean Sea, has a convulsive geological history, with recurring closing and opening events since the late Miocene. As a consequence, this region has played a major role in the evolutionary history of many species. Cynara baetica (Compositae) is a diploid perennial herb distributed in both sides of this strait. It is currently subdivided into two subspecies: C. baetica subsp. baetica for the Spanish populations, and C. baetica subsp. maroccana for the Moroccan ones. Following three different approximations of species delimitation, including phylogenetic and population genetic analyses (based on three AFLP primer combinations and two intergenic spacers of cpDNA), ecological niche modeling (ENM) and morphological studies, this taxon is investigated and reinterpreted. The results obtained showed a clear genetic, morphological and ecological differentiation between the two taxa and the important role played by the Strait of Gibraltar as a geographical barrier. Based on this evidence, the current taxonomic treatment is modified (both taxa should recover their specific rank) and specific conservation guidelines are proposed for the newly delimited taxa.

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“…The AFLP procedure followed the protocol of Vos et al [46] as modified by Vilatersana et al [47]. About 250 ng of genomic DNA was used for the restriction reaction.…”

Section: Methodsmentioning

confidence: 99%

Reinterpretation of an endangered taxon based on integrative taxonomy: The case of Cynara baetica (Compositae)

2018

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“…Indeed, this genus has been proposed as an excellent model system to tackle open questions in invasion ecology (Kueffer et al 2013). Work on South African Senecio species has shed light on the role of adaptive evolution (Dormontt et al 2014), admixture and hybridisation (Vilatersana et al 2018), phenotypic plasticity (Bossdorf et al 2008), and ploidy level (Lafuma et al 2003) in invasions.…”

Section: Taxonomic Patternsmentioning

confidence: 99%

South Africa as a Donor of Naturalised and Invasive Plants to Other Parts of the World

Pyšek

Pergl

Kleunen

et al. 2020

Biological Invasions in South Africa

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This chapter provides the first assessment of South African native vascular plants as naturalised and invasive species in other parts of the world. For naturalised species, Global Naturalized Alien Flora (GloNAF) data were used, while for invasive species an assessment was made using the peer-reviewed literature, experience of the authors, and correspondence with authorities in many parts of the world. Results show that 1093 South African native plant taxa have been recorded as naturalised, but for only 79 of these is there strong and unequivocal evidence of invasiveness in natural or semi-natural ecosystems (another 132 taxa have been listed as invasive, but do not fulfil all criteria for listing as such). Thirty-five taxa have naturalised in more than 100 regions (countries, states, provinces, districts, or individual islands), and six taxa (all grasses-family Poaceae) are naturalised in more than 200 regions. However, of these, only 12 (34.2%) are recorded as invasive, and only nine fulfil the more conservative definition of invasive. These figures indicate that to be widely distributed does not automatically translate into being a strong invader, and that taxa that are extremely successful as invaders in some regions only succeed in specific environmental and geographic settings, and many of them are not widespread alien plants. Grasses are over-represented among both naturalised and invasive South African plant exports: 15% of naturalised species and 23% of invasive species are grasses. Temperate Asia and Europe are net donors of naturalised plants to South Africa, but Australasia and the Pacific Islands have received many more naturalised plants than they have donated to South Africa. Of taxa native to South Africa recorded as unequivocally invasive outside of cultivation elsewhere, 65% occur in Australia. 26.1 Introduction Information on the global distribution of alien plant species has improved dramatically over the last decade (van Kleunen et al. 2015; Pyšek et al. 2017), largely due to the Global Naturalized Alien Flora database (GloNAF; www.glonaf.org) that integrates and summarises the wealth of regional data on the occurrence of naturalised alien plants worldwide (sensu Richardson et al. 2000b). In January 2019, GloNAF contained data on the distribution of 13,939 plant taxa in 1029 regions, including 381 islands (the regions in GloNAF correspond to countries, states, provinces, districts, or individual islands, see van Kleunen et al. 2019 for the full list). GloNAF has been used for testing a wide range of central concepts and hypotheses in invasion biology (see

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“…Genomic events such as intra-or inter-specific hybridization between genetically distinct source populations and polyploid formation are responsible largely for speciation (Rapp and Wendel 2005) and increasing the evolutionary potential of invasive species (Rius and Darling 2014;van Kleunen et al 2015) leading to successful invasion (Ellstrand and Schierenbeck 2000). Multiple introductions and intraspecific hybridization have been found to lead to the increase (or retention of ) genetic diversity, and subsequently fitness of the invading population like Bromus tectorum (Novak and Mack 2005), Phalaris arundinacea (Lavergne and Molofsky 2007), Senecio pterophorus (Vilatersana et al 2016), Ambrosia artemisiifolia (van Boheemen et al 2017).…”

Section: Epigenetic Alterations Associated With Genomic Events Duringmentioning

confidence: 99%

Genetic and epigenetic regulation of phenotypic variation in invasive plants – linking research trends towards a unified framework

Banerjee¹,

Guo²,

Huang³

2019

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Phenotypic variation in the introduced range of an invasive species can be modified by genetic variation, environmental conditions and their interaction, as well as stochastic events like genetic drift. Recent studies found that epigenetic modifications may also contribute to phenotypic variation being independent of genetic changes. Despite gaining profound ecological insights from empirical studies, understanding the relative contributions of these molecular mechanisms behind phenotypic variation has received little attention for invasive plant species in particular. This review therefore aimed at summarizing and synthesizing information on the genetic and epigenetic basis of phenotypic variation of alien invasive plants in the introduced range and their evolutionary consequences. Transgenerational inheritance of epigenetic modifications was highlighted focusing on its influence on microevolution of the invasive plant species. We presented a comprehensive account of epigenetic regulation of phenotypic variation and its role in plant invasion in the presence of reduced standing genetic variation, inbreeding depression and associated genomic events which have often been observed during introduction and range expansion of an invasive alien species. Finally, taking clues from the studies conducted so far, we proposed a unified framework of future experimental approaches to understand ecological and evolutionary aspects of phenotypic variation. This holistic approach, being aligned to the invasion process in particular (introduction-establishment-spread), was intended to understand the molecular mechanisms of phenotypic variation of an invasive species in its introduced range and to disentangle the effects of standing genetic variation and epigenetic regulation of phenotypic variation.

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The invasion of Senecio pterophorus across continents: multiple, independent introductions, admixture and hybridization

Cited by 14 publications

References 82 publications

Reinterpretation of an endangered taxon based on integrative taxonomy: The case of Cynara baetica (Compositae)

Reinterpretation of an endangered taxon based on integrative taxonomy: The case of Cynara baetica (Compositae)

South Africa as a Donor of Naturalised and Invasive Plants to Other Parts of the World

Genetic and epigenetic regulation of phenotypic variation in invasive plants – linking research trends towards a unified framework

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