A5054628836- Genetic diversity and population structure
- Mollusks and Parasites Studies
- Plant and animal studies
- Marine Biology and Ecology Research
- Animal Ecology and Behavior Studies
- Marine Bivalve and Aquaculture Studies
- Ecology and Vegetation Dynamics Studies
- Aquatic Invertebrate Ecology and Behavior
- Evolution and Paleontology Studies
- Genetic Mapping and Diversity in Plants and Animals
- Evolution and Genetic Dynamics
- Genetic and Environmental Crop Studies
- Genomics and Phylogenetic Studies
- Species Distribution and Climate Change
- Marine and coastal plant biology
- Invertebrate Taxonomy and Ecology
- Genetic Associations and Epidemiology
- Genetic and phenotypic traits in livestock
- Coral and Marine Ecosystems Studies
- Animal Behavior and Reproduction
- Ichthyology and Marine Biology
- Plant Parasitism and Resistance
- Renewable energy and sustainable power systems
- Paleopathology and ancient diseases
- Gene expression and cancer classification
Institute of Science and Technology Austria
2020-2024
University of Sussex
2024
University of Gothenburg
2024
University of Sheffield
2018-2024
University of Oregon
2014-2023
University of Surrey
2020
Instituto de Ciencias Agrarias
2020
The University of Western Australia
2011-2018
Google (United States)
2015
Edith Cowan University
2013
A primary roadblock to our understanding of speciation is that it usually occurs over a timeframe too long study from start finish. The idea continuum provides something solution this problem; rather than observing the entire process, we can simply reconstruct multitude events surround us. But what do really mean when talk about continuum, and help us understand speciation? We explored these questions using literature review online survey researchers. Although most researchers were familiar...
Key innovations are fundamental to biological diversification, but their genetic basis is poorly understood. A recent transition from egg-laying live-bearing in marine snails ( Littorina spp.) provides the opportunity study architecture of an innovation that has evolved repeatedly across animals. Individuals do not cluster by reproductive mode a genome-wide phylogeny, local genealogical analysis revealed numerous small genomic regions where all live-bearers carry same core haplotype....
Speciation genomic studies aim to interpret patterns of genome-wide variation in light the processes that give rise new species. However, interpreting "landscape" speciation is difficult, because many evolutionary can impact levels variation. Facilitated by first chromosome-level assembly for group, we use whole-genome sequencing and simulations shed on have shaped landscape during a radiation monkeyflowers. After inferring phylogenetic relationships among 9 taxa this radiation, show highly...
A primary goal in evolutionary biology is to identify the historical events that have facilitated origin and spread of adaptations. When these adaptations also lead reproductive isolation, we can learn about mechanisms contributing speciation. We reveal complex history gene MaMyb2 shaping flower colour divergence within a recent radiation monkey flowers.In Mimulus aurantiacus species complex, red-flowered M. a. ssp. puniceus yellow-flowered australis are partially isolated because...
Speciation is a key evolutionary process that not yet fully understood. Combining population genomic and ecological data from multiple diverging pairs of marine snails (Littorina) supports the search for speciation mechanisms. Placing on one-dimensional continuum, undifferentiated populations to species, obscured complexity speciation. Adding axes helped describe either routes or reproductive isolation in snails. Divergent selection repeatedly generated barriers between ecotypes, but...
A major goal of speciation research is to reveal the genomic signatures that accompany process. Genome scans are routinely used explore genome-wide variation and identify highly differentiated loci may contribute ecological divergence, but they do not incorporate spatial, phenotypic or environmental data might enhance outlier detection. Geographic cline analysis provides a potential framework for integrating diverse forms in spatially explicit framework, has been study patterns divergence....
Understanding population divergence that eventually leads to speciation is essential for evolutionary biology. High species diversity in the sea was regarded as a paradox when strict allopatry considered necessary most events because geographical barriers seemed largely absent sea, and many marine have high dispersal capacities. Combining genome-wide data with demographic modelling infer history of has introduced new ways address this classical issue. These models assume an ancestral splits...
Abstract Speciation research—the scientific field focused on understanding the origin and diversity of species—has a long complex history. While relevant to one another, specific goals activities speciation researchers are highly diverse, scattered across collection different perspectives. Thus, our will benefit from efforts bridge findings diverse people who do work. In this paper, we outline two ways integrating research: (i) integration, through bringing together ideas, data, approaches;...
Abstract Chromosomal rearrangements can lead to the coupling of reproductive barriers, but whether and how they contribute completion speciation remains unclear. Marine snails genus Littorina repeatedly form hybrid zones between populations segregating for multiple inversion arrangements, providing opportunities study their barrier effects. Here, we analyzed 2 adjacent transects across ecotypes fabalis (“large” “dwarf”) adapted different wave exposure conditions on a Swedish island. Applying...
Abstract The term “haplotype block” is commonly used in the developing field of haplotype‐based inference methods. We argue that should be defined based on structure Ancestral Recombination Graph (ARG), which contains complete information ancestry a sample. use simulated examples to demonstrate key features relationship between haplotype blocks and ancestral structure, emphasizing stochasticity processes generate them. Even simplest cases neutrality or “hard” selective sweep produce rich...
Abstract Understanding the phenotypic and genetic architecture of reproductive isolation is a long‐standing goal speciation research. In several systems, large‐effect loci contributing to barrier phenotypes have been characterized, but such causal connections are rarely known for more complex architectures. this study, we combine “top‐down” “bottom‐up” approaches with demographic modelling toward an integrated understanding across monkeyflower hybrid zone. Previous work suggests that...
Predicting the outcomes of adaptation is a major goal evolutionary biology. When temporal changes in environment mirror spatial gradients, it opens up potential for predicting course adaptive evolution over time based on patterns genetic and phenotypic variation. We assessed this approach 30-year transplant experiment intertidal snail Littorina saxatilis . In 1992, snails were transplanted from predation-dominated to one dominated by wave action. On basis patterns, we predicted transitions...
On Rosemary Island, a small continental island (11 km2) in the Dampier Archipelago, Western Australia, snails of genus Rhagada have extremely diverse morphologies. Their shells vary remarkably size and shape, with latter ranging from globose to keeled-flat, spanning range variation entire genus. Based primarily on shell morphology, five distinct species are currently recognized. However, study 103 populations has revealed continuity form within very closely-related group. A phylogenetic...
Speciation is the process by which reproductive isolation evolves between populations. Two general models of speciation have been proposed: ecological speciation, where barriers evolve due to ecologically based divergent selection, and mutation-order populations fix different mutations as they adapt similar selection pressures. I evaluate these alternative determine progress in a diverse group land snails, genus Rhagada, inhabiting Rosemary Island. A recently derived keeled-flat morphotype...
Understanding the genetic basis of reproductive isolation is a long-standing goal speciation research. In recently diverged populations, genealogical discordance may reveal genes and genomic regions that contribute to process. Previous work has shown conspecific colonies Acropora spawn in different seasons (spring autumn) are associated with highly lineages phylogenetic marker PaxC . Here, we used 10 034 single-nucleotide polymorphisms generate genome-wide phylogeny compared it gene...
Sexual antagonism is a common hypothesis for driving the evolution of sex chromosomes, whereby recombination suppression favored between sexually antagonistic loci and sex-determining locus to maintain beneficial combinations alleles. This results in formation region. Chromosomal inversions may contribute but their precise role chromosome remains unclear. Because local adaptation frequently facilitated through adaptive by chromosomal inversions, there potential that cover regions be involved...
Abstract Identification of the genomic regions that contribute to reproductive isolation and how they interact is a major goal evolutionary genetics. Much effort has focused on locating candidate genes potential barrier loci by scanning genomes for excess differentiation ( F ST ). An alternative, perhaps more robust approach, would be scan exhibiting steep clines in allele frequency across hybrid zone. Here we develop this approach apply it data from zone between varieties Antirrhinum majus...
A major goal of speciation research is identifying loci that underpin barriers to gene flow. Population genomics takes a ′bottom-up′ approach, scanning the genome for molecular signatures processes drive or maintain divergence. However, interpreting ′genomic landscape′ complicated, because scans conflate multiple processes, most which are not informative about studying replicated population contrasts, including incidences secondary contact, can strengthen inferences. In this paper, we use...
The evolution of strong reproductive isolation (RI) is fundamental to the origins and maintenance biological diversity, especially in situations where geographical distributions taxa broadly overlap. But what history behind barriers currently acting sympatry? Using whole-genome sequencing single nucleotide polymorphism genotyping, we inferred (i) evolutionary relationships, (ii) strength RI, (iii) demographic divergence between two sympatric intertidal snail. Despite being cryptic, based on...
The concept of a "speciation continuum" has gained popularity in recent decades. It emphasizes speciation as continuous process that may be studied by comparing contemporary population pairs show differing levels divergence. In their perspective article Evolution, Stankowski and Ravinet provided valuable service formally defining the continuum reproductive isolation, based on opinions gathered from survey researchers. While we agree been useful to advance understanding process, some...
In island archipelagos, where islands have experienced repeated periods of fragmentation and connection through cyclic changes in sea level, complex among-island distributions might reflect historical distributional or local evolution. We test the relative importance these mechanisms an endemic radiation Rhagada land snails Dampier Archipelago, a continental archipelago off coast Western Australia, ten morphospecies complex, overlapping distributions. obtained partial mtDNA sequence (COI)...