DaveLunt.net - Dr Dave Lunt | Research
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Research

We are applying sensitive DNA barcoding approaches to understand host parasitoid interactions in agricultural systems. We are now able to screen the host species of parasitoid wasps (e.g. aphids) for the presence of parasitoid DNA using rapid PCR techniques. These studies allow a different way...

  The enormous quantities of genomic data now available permit us to powerfully test hypothese of molecular evolution. Perhaps because of  the amount of data available comparative analysis of whole genomes is also challenging.We have developed a range of bioinformatic pipelines to facilitate our studies and...

I have a project going at the moment to examine changes in intron diversity, size and location in animal genomes. I am always a bit frustrated with the way introns are treated in many genome characterisation papers- "the genome contained Y introns with mean intron...

  Root Knot Nematodes of the genus Meloidogyne are some of the world's most important crop pathogens. The genus contains a wide range of reproductive modes, with repeated transitions between them. This raises interesting possibilities to investigate the genomic consequences of the loss of meiotic recombination. I...

  We are studying gene copy number variation (CNV) in adaptive radiations of cichlids. A fundamental question in biology is what type of genomic changes underlie local adaptation and species radiations. Cichlid fish radiations in the African Great Lakes show extraordinary levels of speciation and ecological...

With Jenny Rock, Nia Whitely, and collaborators I have investigated the phylogeography and ecological adaptation to different water temperature environments in Gammarus duebeni . This species shows divergence between freshwater and marine forms (subspecies) and its enormous lattitudinal range has interesting applications from the perspecitive of...

In collaboration with Carlos Hasbun we studied the phylogenetics and genetic diversity of Mesoamerican spiny-tailed iguanas using both fresh samples and formalin preserved museum specimens. These revealed 3 major genetic groups that corresponded to the Ctenosaura flavidorsalis, C. quinquecarinata and the recently described C. oaxaca species. Photo Carlos Hasbun

I downloaded some datasets from the SILVA96 database. These are structurally aligned SSU rDNA sequences. I browsed through the taxonomic groups and chose annelids (N=1050) and nematodes (N=5048) as smallish tests. I downloaded these as fasta files.I started with the annelids file. The file contain...

The prediction I made before about a long silence once this year's students turned up was sadly accurate. Anyway, students dealt with, grant proposal submitted, lectures (mostly) given, bureaucracy reduced (a bit), time to get on with some phylogenetics.I was playing before with FastTree....

In order to to see how quickly FastTree runs for me I need some automated method of timing it. While some programs like phyML return a runtime at the end FastTree doesn't seem to. So I searched the web and found bits of perl code...

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