Author Archives: Stacy Krueger-Hadfield

The brave new world of environmental genomics

Posted on 17 Apr, 2015 by Stacy Krueger-Hadfield

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

Gorillas (genomes) in the mist

Posted on 10 Apr, 2015 by Stacy Krueger-Hadfield

Mountain gorillas are an endangered great ape subspecies that number around 800 individuals, inhabiting mountain ranges in central Africa. They have been the subject of numerous field studies, but few genetic analyses have been carried out. Xue et al. (2015) sequenced … Continue reading →

Posted in bioinformatics, conservation, evolution, genomics, natural history, next generation sequencing, primates | Tagged , , , | Leave a comment

The fickleness of P?

Posted on 3 Apr, 2015 by Stacy Krueger-Hadfield

Halsey and colleagues (2015) raise an important issue regarding a certain letter with which we all are familiar: They describe the sample-to-sample variability in the P value as a major cause of lack of repeatability that is not generally considered. They explain why P is fickle to … Continue reading →

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l'oliva di mare: disturbance and genetic diversity

Posted on 27 Mar, 2015 by Stacy Krueger-Hadfield

Seagrasses are important ecosystem-engineers of coastal regions around the world. Previous work has demonstrated the correlation of high genotypic diversity with resistance (e.g., Hughes and Stachowicz 2004) and resilience (e.g., Reusch et al. 2005). In a recently accepted paper in Molecular Ecology, Jahnke, … Continue reading →

Posted in adaptation, community ecology, conservation, natural history, plants | Tagged , , , | Leave a comment

Haploid-diploidy, a (brief?) history

Posted on 20 Mar, 2015 by Stacy Krueger-Hadfield

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

British fineSTRUCTURE

Posted on 20 Mar, 2015 by Stacy Krueger-Hadfield

Leslie et al. (2015) provide an analysis of genome-wide SNP data from over 2,000 individuals in the United Kingdom in a paper out this week in Nature. The population structure in the UK was limited with FST estimates averaged 0.0007, with a … Continue reading →

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To sequence a genome or not to sequence a genome, that is the question

Posted on 16 Mar, 2015 by Stacy Krueger-Hadfield

In a paper out last month in the Journal of Phycology, Bhattacharya et al. (2015) provide a perspective on the need for more algal genomes. [A] relevant question on the minds of many phycologists might be: do we really need more algal … Continue reading →

Posted in bioinformatics, evolution, genomics, horizontal gene transfer, mutation, next generation sequencing, selection | Tagged , , , , | Leave a comment

Mating systems

Posted on 13 Mar, 2015 by Stacy Krueger-Hadfield

In a new paper, published online in Molecular Ecology, Pannell (2015) reviews the literature on the evolution of mating systems and dispersal in colonizing species as component of a special issue called Invasion Genetics: The Baker and Stebbins Legacy.  This issue is … Continue reading →

Posted in adaptation, Coevolution, conferences, evolution, Molecular Ecology, the journal, selection | Tagged , , , , , | 2 Comments

sedaDNA sleuths: embracing your inner Sherlock

Posted on 6 Mar, 2015 by Stacy Krueger-Hadfield

Awhile back fellow TME contributor Rob Denton posted about a recent review on environmental DNA by Pedersen et al. (2015). Environmental DNA (eDNA) is obtained from samples such as sediments, ice or water and can provide scientific sleuths with tantalizing clues about past … Continue reading →

Posted in bioinformatics, domestication, genomics, natural history, next generation sequencing, Paleogenomics | Tagged , , , | 1 Comment

Just like an elephant and a manatee …

Posted on 27 Feb, 2015 by Stacy Krueger-Hadfield

There is a positive correlation between the time since two lineages have diverged and the strength of the reproductive barriers between them. Rothfels et al. (2015) have described a natural hybridization event between two fern genera that diverged from one … Continue reading →

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