Search Constraints
Search Results
-
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 …
-
Journal article
Ecological speciation in sympatric palms: 3. Genetic map reveals genomic islands underlying species divergence in Howea
Although it is now widely accepted that speciation can occur in the face of continuous gene flow, with little or no spatial separation, the mechanisms and genomic architectures that permit such divergence are still debated. Here, we examined speciation in the face of gene flow in the Howea palms of...Papadopulos, Alexander ; Igea, Javier ; Dunning, Luke ; Osborne, Owen ; Quan, Xueping …
Genetics, Ecology, Evolution, Behavior and Systematics, and General Agricultural and Biological Sciences
-
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 …
-
Journal article
Do tropical plants have smaller genomes? Correlation between genome size and climatic variables in the Caesalpinia Group (Caesalpinioideae, Leguminosae)
While a number of studies have suggested that temperate plants typically have larger genome sizes (GS) than tropical ones, recent analyses have not convincingly confirmed this. We have selected the widely distributed Caesalpinia Group (Leguminosae) to test this hypothesis. We used flow cytometry to estimate the amount of DNA in...Souza, Gustavo ; Costa, Lucas ; Guignard, Maïté ; Van-Lume, Brena ; Pellicer, Jaume …
-
Journal article
The Plant DNA C‐values database (release 7.1): an updated online repository of plant genome size data for comparative studies
In recent decades, interest in plant genome size (i.e. the total amount of DNA in the unreplicated haploid nucleus; Greilhuber et al., 2005) has been growing exponentially as the biological, evolutionary and ecological significance of this key biodiversity trait is increasingly recognized (e.g. see reviews by Greilhuber & Leitch, 2013;...Pellicer, Jaume ; Leitch, Ilia J.
algae , flow cytometry, C‐values, land plants, and plant DNA C‐values database
-
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
-
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 …
-
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
The Application of Flow Cytometry for Estimating Genome Size, Ploidy Level Endopolyploidy, and Reproductive Modes in Plants
Over the years, the amount of DNA in a nucleus (genome size) has been estimated using a variety of methods, but increasingly, flow cytometry (FCM) has become the method of choice. The popularity of this technique lies in the ease of sample preparation and in the large number of particles... -
Journal article
Biogeography and genome size evolution of the oldest extant vascular plant genus, Equisetum (Equisetaceae)
Abstract Background and Aims Extant plant groups with a long fossil history are key elements in understanding vascular plant evolution. Horsetails (Equisetum, Equisetaceae) have a nearly continuous fossil record dating back to the Carboniferous, but their phylogenetic and biogeographic patterns are still poorly understood. We use here the most extensive...Christenhusz, Maarten J M ; Chase, Mark W ; Fay, Michael F ; Hidalgo, Oriane ; Leitch, Ilia J …
living fossils, sperm cells, flagellae, molecular clocks, Sphenophyta, ferns, horsetails, and C-value
-
Journal article
Genomic gigantism in the whisk-fern family (Psilotaceae): Tmesipteris obliqua challenges record holder Paris japonica.
-
Journal article
Genome Size Doubling Arises From the Differential Repetitive DNA Dynamics in the Genus Heloniopsis (Melanthiaceae).
Plant genomes are highly diverse in size and repetitive DNA composition. In the absence of polyploidy, the dynamics of repetitive elements, which make up the bulk of the genome in many species, are the main drivers underpinning changes in genome size and the overall evolution of the genomic landscape. The...Pellicer, Jaume ; Fernández, Pol ; Fay, Michael F. ; Michálková, Ester ; Leitch, Ilia J.
DNA repeats, C-value, Rransposable elements, Satellite DNA, Chromosome, and Heloniopsis
-
Journal article
Lineage‐specific vs. universal: A comparison of the Compositae1061 and Angiosperms353 enrichment panels in the sunflower family.
Siniscalchi, Carolina M. ; Hidalgo, Oriane ; Palazzesi, Luis ; Pellicer, Jaume ; Pokorny, Lisa …
Target capture, Paralogy , Asteraceae , Angiosperms, and Phylogenomics
-
Journal article
Genome evolution of ferns: evidence for relative stasis of genome size across the fern phylogeny.
-
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...