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Journal article
Physical mapping of ribosomal DNA and genome size in diploid and polyploid North African Calligonum species (Polygonaceae).
Gouja, Hassen ; Garnatje, Teresa ; Hidalgo, Oriane ; Neffati, Mohamed ; Raies, Aly …
Cytogenetics, 35S rDNA, Genome organization, FISH, Fluorochrome banding, and 5S rDNA
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Journal article
Genome evolution of ferns: evidence for relative stasis of genome size across the fern phylogeny.
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Journal article
Genomic gigantism in the whisk-fern family (Psilotaceae): Tmesipteris obliqua challenges record holder Paris japonica.
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Journal article
Polyploidy in the Conifer Genus Juniperus: An Unexpectedly High Rate
Recent research suggests that the frequency of polyploidy may have been underestimated in gymnosperms. While there are few reports of polyploids in the genus Juniperus, data are still missing for most species. In this study, we evaluated the extent of polyploidy in Juniperus by conducting the first comprehensive screen across...Farhat, Perla ; Hidalgo, Oriane ; Robert, Thierry ; Siljak-Yakovlev, Sonja ; Leitch, Ilia …
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Journal article
Cryptic species in an ancient flowering-plant lineage (Hydatellaceae, Nymphaeales) revealed by molecular and micromorphological data
The flora of the southwestern Australian biodiversity hotspot is rich in endemic species, many of which remain to be discovered or properly described; estimates of species diversity and levels of endemism should take into account the possible occurrence of cryptic species. Here we explore taxonomic diversity in a Western Australian...Sokoloff, Dmitry ; Marques, Isabel ; Macfarlane, Terry ; Remizowa, Margarita ; Lam, Vivienne …
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Journal article
Polyploidy does not control all: Lineage‐specific average chromosome length constrains genome size evolution in ferns
Recent studies investigating the evolution of genome size diversity in ferns have shown that they have a distinctive genome profile compared with other land plants. Ferns are typically characterized by possessing medium‐sized genomes, although a few lineages have evolved very large genomes. Ferns are different from other vascular plant lineages...Liu, Hong‐Mei ; Ekrt, Libor ; Koutecky, Petr ; Pellicer, Jaume ; Hidalgo, Oriane …
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Journal article
Genome size variation at constant chromosome number is not correlated with repetitive DNA dynamism in Anacyclus (Asteraceae)
Abstract Background and Aims Changes in the amount of repetitive DNA (dispersed and tandem repeats) are considered the main contributors to genome size variation across plant species in the absence of polyploidy. However, the study of repeatome dynamism in groups showing contrasting genomic features and complex evolutionary histories is needed...Vitales, Daniel ; Álvarez, Inés ; Garcia, Sònia ; Hidalgo, Oriane ; Nieto Feliner, Gonzalo …
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Journal article
A Target Capture-Based Method to Estimate Ploidy From Herbarium Specimens
Whole genome duplication (WGD) events are common in many plant lineages, but the ploidy status and possible occurrence of intraspecific ploidy variation are unknown for most species. Standard methods for ploidy determination are chromosome counting and flow cytometry approaches. While flow cytometry approaches typically use fresh tissue, an increasing number...Viruel, Juan ; Conejero, María ; Hidalgo, Oriane ; Pokorny, Lisa ; Powell, Robyn …
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Journal article
Genome Size Evolution and Dynamics in Iris, with Special Focus on the Section Oncocyclus
Insights into genome size dynamics and its evolutionary impact remain limited by the lack of data for many plant groups. One of these is the genus Iris, of which only 53 out of c. 260 species have available genome sizes. In this study, we estimated the C-values for 41 species... -
Journal article
Automated video monitoring of insect pollinators in the field.
Ecosystems are at increasing risk from the global pollination crisis. Gaining better knowledge about pollinators and their interactions with plants is an urgent need. However, conventional methods of manually recording pollinator activity in the field can be time- and cost-consuming in terms of labour. Field-deployable video recording systems have become...Pegoraro, Luca ; Hidalgo, Oriane ; Leitch, Ilia J. ; Pellicer, Jaume ; Barlow, Sarah E.
Pollinators, Video monitoring, Computer vision, Insect pollinators, and Pollination ecology
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Journal article
The correlation of phylogenetics, elevation and ploidy on the incidence of apomixis in Asteraceae in the European Alps.
Asexual reproduction has often been regarded as an evolutionary dead end, but asexual lineages (most notably those that are apomictic) are present in several angiosperm families and often comprise a large number of taxa, both widespread and endemic. Investigating correlations between genetic, environmental and taxonomic factors and the incidence of... -
Journal article
Contrasted histories of organelle and nuclear genomes underlying physiological diversification in a grass species
C4 photosynthesis evolved multiple times independently in angiosperms, but most origins are relatively old so that the early events linked to photosynthetic diversification are blurred. The grass Alloteropsis semialata is an exception, as this species encompasses C4 and non-C4 populations. Using phylogenomics and population genomics, we infer the history of...Bianconi, Matheus E. ; Dunning, Luke T. ; Curran, Emma V. ; Hidalgo, Oriane ; Powell, Robyn F. …
polyploidy, miombo woodlands, phylogenomics, C4 photosynthesis, phylogeography, and admixture
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Journal article
Contrasted histories of organelle and nuclear genomes underlying physiological diversification in a grass species
C4 photosynthesis evolved multiple times independently in angiosperms, but most origins are relatively old so that the early events linked to photosynthetic diversification are blurred. The grass Alloteropsis semialata is an exception, as this species encompasses C4 and non-C4 populations. Using phylogenomics and population genomics, we infer the history of...Bianconi, Matheus E. ; Dunning, Luke T. ; Curran, Emma V. ; Hidalgo, Oriane ; Powell, Robyn F. …
polyploidy, miombo woodlands, admixture, C₄ photosynthesis, phylogeography, and phylogenomics
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Journal article
Polyploidy in Cupressaceae: Discovery of a new naturally occurring tetraploid, Xanthocyparis vietnamensis.
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Journal article
Detecting Introgressed Populations in the Iberian Endemic Centaurea podospermifolia through Genome Size.
Based on results from previous studies, populations of the Iberian endemic Centaurea podospermifolia north of the Ebro River are considered genetically pure, while those southward are introgressed, with genetic input from C. cephalariifolia. This phenomenon is particularly relevant, especially given both the endangered and protected status for the species, which...