Author Archives: Melissa DeBiasse

About Melissa DeBiasse

I am a postdoctoral researcher at the University of Florida Whitney Laboratory for Marine Bioscience. As an evolutionary ecologist I am interested in the processes that generate biodiversity in marine ecosystems. My research uses experimental methods and genomic and phenotypic data to test how marine invertebrate species respond to biotic and abiotic stressors over ecological and evolutionary timescales.

The next, next generation: long reads facilitate assembly & annotation in large genome species

The typical procedure for constructing a draft genome or transcriptome using current second generation, high throughput sequencing platforms involves generating short reads about 150 base pairs long, assembling those short reads into larger contigs, putting the contigs in the correct order to create … Continue reading

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Posted in genomics, next generation sequencing, plants, Uncategorized | 1 Comment

Conservation through hybridization

                      Human actions have contributed to an unprecedented increase in atmospheric CO2 in the last 250 years, and global temperatures will increase by as many as 4°C by the end … Continue reading

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Machine learning for model selection in population genomics

The application of model-based methods in phylogeography helped the field transition from a more qualitative, overlay-a-tree-on-a-map, discipline to one that tests hypotheses in robust statistical frameworks. Many researchers have embraced approximate Bayesian computation (ABC) for model selection since computing the likelihood of … Continue reading

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Measuring dispersal rate in Neotropical fishes in units of ‘wallace’

Alfred Russel Wallace often gets second billing compared to Charles Darwin but in a paper recently accepted at Systematic Biology, Tagliacollo et al.  define a new term for their analyses (dispersal rate, D) and measure D in units of ‘wallaces‘ (wa) to honor the contributions of Alfred … Continue reading

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Posted in methods, phylogenetics, phylogeography, Uncategorized | 1 Comment

Testing local adaptation at latitudinal and elevation range edges

A species’ distribution is determined by the relative strength and complex interaction of many factors including (but not limited to) dispersal, life history, and physiological tolerance. Often the center of a species’ range is the warm, fuzzy place to be and fitness there is … Continue reading

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Survival of the fittest: a marine snail toughs it out through a salty time

For marine organisms, salinity plays an important role in determining how populations and species are distributed across time and space, particularly in the Mediterranean Sea. During the Mesozoic, about 252 to 66 million years ago, the Tethys Ocean, a body … Continue reading

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Current archival practices limit our ability to reuse genetic data

Archiving genetic data is important for a lot of reasons, like ensuring reproducibility and transparency of results. Being able to access previously published data is also important given that the same set of data can often help answer a diversity of … Continue reading

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