Genetic conservation strategies of endemic plants from edaphic habitat islands: The case of Jacobaea auricula (Asteraceae)

Bobo‐Pinilla, Javier; Salmerón-Sánchez, Esteban; Poveda, Juan Francisco Mota; Peñas, Julio

doi:10.1016/j.jnc.2021.126004

Cited by 11 publications

(9 citation statements)

References 72 publications

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“…A similar pattern was also reported for Arnica montana (Van Rossum and Raspé, 2018) and in the bird seed-dispersed Juniperus communis (Jacquemart et al, 2021), both being critically endangered in southern Belgium. By contrast, distinct genetic lineages were found for A. montana (Vera et al, 2020) and for Jacobaea auricula (Bobo-Pinilla et al, 2021) in Spain, and reproductively isolated genetic lineages were found for Silene nutans in southern Belgium (Martin et al, 2017).…”

Section: Discussionmentioning

confidence: 85%

“…Differences in plastid marker sequences among populations may reveal different phylogeographic patterns related to ancient processes, such as different (post)glacial migration histories, and the existence of contact zones where distinct genetic lineages have met (Hewitt, 2004;Hickerson et al, 2010;. The related genetic divergence among, sometimes co-occurring, genetic lineages may induce reproductive isolation and outbreeding depression in hybrid progeny (Edmands, 2007;Martin et al, 2017), requiring to take phylogeographic patterns into account for source sampling Vera et al, 2020;Bobo-Pinilla et al, 2021). The other research questions relating to genetic diversity (as described in Table 1) were based on the analysis of nuclear microsatellite markers and are described below.…”

Section: Phylogeographic Historymentioning

confidence: 99%

“…Identifying phenotypic plasticity and maternal effects may also give insights into adaptive differences and nonneutral genetic variability accounting for population resilience (Nicotra et al, 2015;Hamilton et al, 2017;Van Rossum et al, 2020). Besides, whether the potential source and target populations share common phylogeographic history (based on plastid markers) has been insufficiently examined (Van Rossum and Raspé, 2018;Vera et al, 2020;Bobo-Pinilla et al, 2021;Jacquemart et al, 2021), despite the risk of reproductive isolation and outbreeding depression in hybrids between genetic lineages that show diverging phylogeographic patterns (Edmands, 2007;Martin et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Assessing Population Genetic Status for Designing Plant Translocations

Rossum

Pajolec

Raspé

et al. 2022

Front. Conserv. Sci.

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Assisted gene flow interventions such as plant translocations are valuable complementary techniques to habitat restoration. Bringing new genetic variants can contribute to increasing genetic diversity and evolutionary resilience, counteract inbreeding depression and improve plant fitness through heterosis. Large, highly genetically variable populations are usually recommended as sources for translocation. Unfortunately, many critically endangered species only occur as small populations, which are expected to show low genetic variation, high inbreeding level, paucity of compatible mates in self-incompatible species, and increased genetic divergence. Therefore, assessment of population genetic status is required for an appropriate choice of the source populations. In this paper, we exemplify the different analyses relevant for genetic evaluation of populations combining both molecular (plastid and nuclear) markers and fitness-related quantitative traits. We assessed the genetic status of the adult generation and their seed progeny (the potential translocation founders) of small populations of Campanula glomerata (Campanulaceae), a self-incompatible insect-pollinated herbaceous species critically endangered in Belgium. Only a few small populations remain, so that the species has been part of a restoration project of calcareous grasslands implementing plant translocations. In particular, we estimated genetic diversity, inbreeding levels, genetic structure in adults and their seed progeny, recent bottlenecks, clonal extent in adults, contemporary gene flow, effective population size (Ne), and parentage, sibship and seed progeny fitness variation. Small populations of C. glomerata presented high genetic diversity, and extensive contemporary pollen flow within populations, with multiple parentage among seed progenies, and so could be good seed source candidates for translocations. As populations are differentiated from each other, mixing the sources will not only optimize the number of variants and of compatible mates in translocated populations, but also representativeness of species regional genetic diversity. Genetic diversity is no immediate threat to population persistence, but small Ne, restricted among-population gene flow, and evidence of processes leading to genetic erosion, inbreeding and inbreeding depression in the seed progeny require management measures to counteract these trends and stochastic vulnerability. Habitat restoration facilitating recruitment, flowering and pollination, reconnecting populations by biological corridors or stepping stones, and creating new populations through translocations in protected areas are particularly recommended.

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Section: Discussionmentioning

confidence: 85%

Section: Phylogeographic Historymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing Population Genetic Status for Designing Plant Translocations

Rossum

Pajolec

Raspé

et al. 2022

Front. Conserv. Sci.

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“…Molecular markers and habitat differences should be used in combination to delineate phylogeographic groups, which provide the basis for designing "seed zones" (e.g., [115,[122][123][124][125]). Several examples can be found about the use of molecular markers to delineate the seed zones [20,120,126,127].…”

Section: Phylogeography and Ex Situ Conservationmentioning

confidence: 99%

Conservation and Phylogeography of Plants: From the Mediterranean to the Rest of the World

et al. 2022

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During the last decades, phylogeography has transformed the ways to analyze and understand plant diversity and biogeography. The repeated and increasingly detailed articles made from DNA data with phylogeographical procedures and algorithms have revolutionized biodiversity research, particularly on biodiversity conservation. This paper presents a systematic literature review of the different ways in which phylogeography has been applied to plants in Mediterranean-type ecosystems (MTEs), especially to rare, threatened, and endemic plants. Studies ranged from basic research to how phylogeography is actually contributing to management conservation of Mediterranean plants. Finally, new and future phylogeography perspectives with integrative scientific arguments and conceptual bases applied to plant conservation biology are discussed.

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“…In addition, it has been observed that this type of vegetation usually presents low productivity rates compared with the communities that surround it. Additionally, they are often distributed as edaphic habitat islands [44], which allows them to be studied from the perspective of island ecological biogeography [39]. In summary, the characteristics of dolomitic soils and the nutritional challenges faced by these plants may be behind the richness and diversity of these communities.…”

Section: Dolomiticolous Flora and Vegetationmentioning

confidence: 99%

Elementome of Endemic Dolomitic Flora: Pterocephalus spathulatus (Lag.) Coult

Merlo

Mendoza-Fernández

Salmerón-Sánchez

et al. 2021

Land

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Unusual dolomite substrates present a phenomenon known as dolomitophily, which refers to the specificity of the flora that grows on them. Within the dolomitic flora, one of the most widespread plants in Spain is the characteristic species Pterocephalus spathulatus (Lag.) Coult., which forms whitish prostrate thymes. The present study focused on the knowledge about the ionome (or elementome) of a characteristic dolomite species and some of its applications, both in terms of its nutritional behaviour and in determining the factors that favour the rich and rare flora growing on dolomitic soils. Soil, foliar, stem and root samples of the species studied were collected from different locations in the south of Spain. The samples were analysed to determine their mineral composition. The Bioconcentration Factor (BCF) and the Translocation Factor (TF) were calculated, relating the values of the mineral contents in the soil, both total and phytoavailable, to the values from the foliar, root and stem samples. It was found that this species was able to accumulate some elements, including B, Cr, Cu, Ni, Ti, Tl and Zn, which can be phytotoxic in high concentrations, and are considered to be some of the main toxic metals in soils. In addition, it was observed that the plant can accumulate metals in the stem and leaves (TF), thus proving that it is capable of transporting them from the root to the aerial part of the plant. The data obtained may indicate that other species in the plant community may possess this bioindicator or even phytoremediation capacity.

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Genetic conservation strategies of endemic plants from edaphic habitat islands: The case of Jacobaea auricula (Asteraceae)

Cited by 11 publications

References 72 publications

Assessing Population Genetic Status for Designing Plant Translocations

Assessing Population Genetic Status for Designing Plant Translocations

Conservation and Phylogeography of Plants: From the Mediterranean to the Rest of the World

Elementome of Endemic Dolomitic Flora: Pterocephalus spathulatus (Lag.) Coult

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