Category Archives: DNA barcoding

Macroalgal miscellany

It’s been a jam-packed week and I’ve found myself at Friday. Grandiose plans for a post continuing the series on clonality (see here and here) did not come to fruition. But, I was saved with a new article that tumbled … Continue reading

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Lonesome George, no longer?

Galapagos tortoises summon up images of great, lumbering beasts on idyllic islands that planted the seeds of natural selection in the young naturalist, Charles Darwin. In a recent paper, Poulakakis et al. (2015) provide genetic evidence of two lineages of tortoises … Continue reading

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The scent of home

We decided to divide and conquere the west coast of North America in search of more populations of Gracilaria vermiculophylla, as if we didn’t already have enough by Midsummer’s Eve! I headed to my home state – California. I was able to sneak … Continue reading

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What’s a Wachapreague?

Heading north to Virginia (and our base of operations at the VIMS Eastern Shore Lab, ESL) was one of the easiest, in terms of travel and packing. Though maybe not the coolest ride around, a minivan doesn’t have 50 lb … Continue reading

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Polyploidy can melt the frozen niche

The rabbit hole of asexual reproduction literature is full of weird detours in the evolution of life. There are asexual lineages that facultatively have sex, asexuals that still need sperm from other species,  and asexuals that steal sperm from other species, … Continue reading

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Clonal conundrum, part deux

In the second installment of the clonal conundrum, one hallmark of clonality is one that surprisingly hasn’t been validated that many times using species that have both sexually and asexually reproducing populations. Theoretically, clonal reproduction should generate massive … Heterozygote excess … Continue reading

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The brave new world of environmental genomics

A new special issue of Heredity reflects on the recent advances in environmental genomics (see other posts about eDNA here and here) and highlights the ways NGS can aid in characterizing complex biological systems. The cryptic, as well as the rare but active … Continue reading

Posted in bioinformatics, Coevolution, DNA barcoding, evolution, genomics | Tagged , , , | 1 Comment

Haploid-diploidy, a (brief?) history

Haploid-diploid life cycles are not only good exercise for the brain, but they’re also fantastic study systems to investigate a myriad of questions. Yet, the majority of molecular studies have focused on the diploid-dominated life cycles of animal and plant … Continue reading

Posted in DNA barcoding, domestication, evolution, genomics, haploid-diploid, natural history, population genetics, selection, speciation | Tagged , , , , , | 2 Comments

Night at the museum

Many population genetic and genomic studies document snapshots of a given population’s genetic diversity. Yet, there are many reasons to document changes over time in population parameters in response to perturbations, such as biological invasions (both in terms of the invader … Continue reading

Posted in DNA barcoding, evolution, genomics, natural history, next generation sequencing, phylogenetics, population genetics, speciation, Uncategorized | Tagged , , , | Leave a comment

A current review of modern and ancient eDNA

There is something romantic about environmental DNA. The ability to discover the presence of almost any species just by detecting the microscopic bread crumbs they leave behind? That is really just a deerstalker and pipette away from Sherlock-level science. But if … Continue reading

Posted in DNA barcoding, genomics, metagenomics, Paleogenomics | Tagged , | 2 Comments