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Journal article
Estimation of contemporary effective population size in plant populations: Limitations of genomic datasets.
Effective population size ( ) is a pivotal evolutionary parameter with crucial implications in conservation practice and policy. Genetic methods to estimate have been preferred over demographic methods because they rely on genetic data rather than time‐consuming ecological monitoring. Methods based on linkage disequilibrium (LD), in particular, have become popular... -
Journal article
Effective population size in a partially clonal plant is not predicted by the number of genetic individuals.
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Journal article
Molecular evidence of species- and subspecies-level distinctions in the rare Orchis patens s.l. and implications for conservation
Characterizing genetic diversity and structure of populations is essential for the effective conservation of threatened species. Orchis patens sensu lato is a narrowly distributed tetraploid species with a disjunct distribution (i.e., Northern Italy, North Africa and the Canary Islands), which is facing a severe decline. In this study, we evaluated...Calevo, Jacopo ; Gargiulo, Roberta ; Bersweden, Leif ; Viruel, Juan ; González-Montelongo, Cristina …
Simple Sequence Repeats (SSRs), Orchids, Disjunct distribution , and Population genetics
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Journal article
Microsatellites and petal morphology reveal new patterns of admixture in Orchis hybrid zones
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Journal article
Uses and benefits of digital sequence information from plant genetic resources: Lessons learnt from botanical collections.
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Journal article
Hot Coffee: The Identity, Climate Profiles, Agronomy, and Beverage Characteristics of Coffea racemosa and C. zanguebariae.
Climate change poses a considerable challenge for coffee farming, due to increasing temperatures, worsening weather perturbations, and shifts in the quantity and timing of precipitation. Of the actions required for ensuring climate resilience for coffee, changing the crop itself is paramount, and this may have to include using alternative coffee... -
Journal article
Crop wild phylorelatives (CWPs): phylogenetic distance, cytogenetic compatibility and breeding system data enable estimation of crop wild relative gene pool classification
Enabling food security requires access to a broad range of genetic resources to facilitate crop breeding. This need is increased in a climate change scenario, which will require the production of novel crops adapted to new conditions. However, many major crops have reduced genetic diversity due to the genetic bottlenecks...Viruel, Juan ; Kantar, Michael B ; Gargiulo, Roberta ; Hesketh-Prichard, Peri ; Leong, Nathan …
reproductive biology, Asparagus, plant breeding, and chromosome
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Journal article
Geographical structure of genetic diversity in Loudetia simplex (Poaceae) in Madagascar and South Africa
Ecologically dominant species are primary determinants of ecosystem function, especially in grassy ecosystems, but the history and biology of grassy ecosystems in Madagascar are poorly understood compared to those of Africa. Loudetia simplex is a C4 perennial grass that is adapted to fire and common to dominant across Africa. It... -
Journal article
Lost and Found: Coffea stenophylla and C. affinis, the Forgotten Coffee Crop Species of West Africa.
Coffea arabica (Arabica) and C. canephora (robusta) almost entirely dominate global coffee production. Various challenges at the production (farm) level, including the increasing prevalence and severity of disease and pests and climate change, indicate that the coffee crop portfolio needs to be substantially diversified in order to ensure resilience and...Davis, Aaron P. ; Gargiulo, Roberta ; Fay, Michael F. ; Sarmu, Daniel ; Haggar, Jeremy
Climate change, Speciality coffee, DNA, Coffee, Agronomy, Sierra Leone, West Africa, and Crop wild relatives
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Journal article
Phylogeography and post-glacial dynamics in the clonal-sexual orchid Cypripedium calceolus L
Aim We investigated the phylogeographical history of a clonal-sexual orchid, to test the hypothesis that current patterns of genetic diversity and differentiation retain the traces of climatic fluctuations and of the species reproductive system. Location Europe, Siberia and Russian Far East. Taxon Cypripedium calceolus L. (Orchidaceae). Methods Samples (>900, from...Gargiulo, Roberta ; Pironon, Samuel ; Zheleznaya, Ekaterina ; Sanchez, Michele ; Balázs, Zoltan …
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Journal article
Genetic diversity and origin of the rare, narrow endemic Asperula crassifolia (Rubiaceae)
We examined the patterns of genetic variation in the narrow endemic Asperula crassifolia (Campania, southern Italy), taking into account the schizoendemic distribution of the Mediterranean members of Asperula sect. Cynanchicae. We obtained plastid DNA sequences of the rps16 intron and the trnC-petN intergenic spacer for several members of A. sect....Gargiulo, Roberta ; De Castro, O ; Del Guacchio, E ; Caputo, P
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Journal article
Genetic diversity in British populations of Taxus baccata L.: Is the seedbank collection representative of the genetic variation in the wild?
Seed banking is an invaluable tool in plant conservation, both as an archive and a source of genetic variation. Despite the increasing focus on the validation of sampling strategies, few studies have empirically related diversity in seed bank collections with variation in wild-provenance populations. By using a set of nuclear...Gargiulo, Roberta ; Saubin, Méline ; Rizzuto, Gabriele ; West, Bede ; Fay, Michael …
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Journal article
Conservation of the threatened species Pulsatilla vulgaris Mill. (pasqueflower) is aided by reproductive system and polyploidy
Population loss due to habitat disturbance is a major concern in biodiversity conservation. Here we investigate the genetic causes of the demographic decline observed in English populations of P ulsatilla vulgaris and the consequences for conservation. Using ten nuclear microsatellite markers, we compare genetic variation in wild populations with restored... -
Research report
Acer campestre L. genetic risk assessment
A summary of the current understanding of genetic diversity and life history traits of Acer campestre within the UK, including a genetic risk assessment for population sampling and current knowledge gaps.Gargiulo, Roberta
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Research report
Viburnum lantana L. genetic risk assessment
A summary of the current understanding of genetic diversity and life history traits of Viburnum lantana within the UK, including a genetic risk assessment for population sampling and current knowledge gaps.Gargiulo, Roberta
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Research report
Buxus sempervirens L. genetic risk assessment
A summary of the current understanding of genetic diversity and life history traits of Buxus sempervirens within the UK, including a genetic risk assessment for population sampling and current knowledge gaps.Gargiulo, Roberta
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Research report
Ulmus glabra Huds. genetic risk assessment
A summary of the current understanding of genetic diversity and life history traits of Ulmus glabra within the UK, including a genetic risk assessment for population sampling and current knowledge gaps.Gargiulo, Roberta
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