Posted in Pogona Research on Jun 17, 2019
Those of you watching *The Desolation of Smaug* closely might have been surprised to see how quickly Smaug arose from his slumber when disturbed by Bilbo the Burglar. How is it that dragons can arouse so quickly if disturbed during hibernation? We might have the answer in our latest paper in BMC Genomics.
Posted in Uncategorized on Jun 03, 2019
Earth’s sixth major mass extinction event has begun and amphibians in particular are in peril; over 40% of amphibian species are threatened with extinction. One agent in their demise is chytrid fungus Batrachochytrium dendrobatidis, responsible for the most widespread, disease-induced declines and extinctions in vertebrates to date. New Guinea is the world’s largest tropical island and the last major center of amphibian biodiversity free from chytrid. Deb Bower, Simon Clulow and their colleagues call for urgent, unified, international, multidisciplinary action to prepare for the arrival of chytrid in New Guinea, to prevent or slow its spread within the island after it arrives, and to limit its impact upon the island’s frog populations.
Posted in Turtle Research on Apr 09, 2019
Who would have thought you could pull DNA from historical museum specimens dating back to 1796 and sequence it? In a paper that came out today in Scientific Reports we use whole mitochondrial sequences from living populations and assembly of fragments of DNA from museum type specimens to bring the two together and solve some longstanding taxonomic enigmas.
Posted in Education and Outreach on Apr 04, 2019
Publications addressing population genetics using single nucleotide polymorphisms (SNPs) are on the rise, indeed exponentially on the rise. If you are interested in analysing SNP data to answer that pressing PopGen question, there is an upcoming workshop that might be of interest to you. It is in Hobart (Australia) in April of 2019. You can express early-bird interest in attending by reading on and clicking the relevant link.
Posted in Uncategorized on Mar 27, 2019
Bacterial identification methods used in routine identification of pathogens in medical microbiology can include a combination of biochemical tests, mass spectrometry, barcode sequencing (16S) or whole genome sequencing. in a paper that came out today in the Journal of Microbial Methods, PhD student Berenice Talamantes explores the utility of reduced representation sequencing for the identification of bacterial pathogens. She has also applied the technique to environmental microbes in work yet to appear.
Posted in Uncategorized on Mar 19, 2019
In a paper that appeared this week in Scientific Reports, Peter Unmack and his colleagues describe work on a hemiclonal 'ghost' lineage of gudgeons from south eastern Australia. They identified a vulnerable sexual population of gudgeons that is involved in two hemiclonal lineages, and provide perspectives on several important issues not previously explored by other studies on ghost species, but relevant to their detection, conservation, and artificial recreation.
Posted in Turtle Research on Dec 15, 2018
In a recent paper in Molecular Ecology on species delimitation, we invoke the age-old criterion of diagnosability to identify lineages that are candidates as name-bearing taxa. For SNP markers, fixed allelic differences between populations or metapopulations provide diagnosability. We apply these markers to a case study of a freshwater turtle, Emyduro macquorii, whose systematics has so far defied resolution, to bring to light a dynamic system of substantive allopatric lineages diverging on independent evolutionary trajectories, but held back in the process of speciation by low level and episodic exchange of alleles across drainage divides on various timescales.
Posted in Turtle Research on Nov 30, 2018
The Bellinger River Sawshell, *Myuchelys georgesi*, is facing some serious challenges. In an article that appeared this week in the journal Endangered Species Research, we report the disturbing observation that the endangered endemic *Myuchelys georgesi* is hybridizing in the wild with the locally introduced *Emydura macquarii*, which threatens Its very existence.
Posted in Pogona Research on Nov 28, 2018
A recent incident involving a feral cat and one of our treasured dragon lizards near Cunnamulla in western Queensland serves to highlight the impact feral cats are having on the Australian environment. PhD students Kris Wild and Phil Pearson tell the story.
Posted in Pogona Research on Jul 04, 2018
Male or female? In many reptiles sex determination is temperature-dependent. But how this works has been a mystery for 50 years... New insights have emerged from work by Chutian Ge and his collegues who show that ancient conserved epigentic machinary is involved in the thermosensitive regulation of key sex genes. Team Pogona was asked to provide a perspective on the new findings. We have received many enquiries since. In this post, we explain more fully what we believe is going on.