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The first genomic insight into Chlamydia psittaci sequence type (ST)24 from a healthy captive psittacine host in Australia demonstrates evolutionary proximity with strains from psittacine, human, and equine hosts

2 minute read

Published:

In 2022, we went into a pet shop and collected a faecal sample from a healthy (asymptomatic) pet bird. We discovered that a strain of Chlamydia psittaci found in a pet bird in 2022 is very similar to the C. psittaci strains that caused foal loss in horses in 2016. This is a bit concerning because it means that there’s a possibility that people and animals could get sick from C. psittaci, so we need to keep a close eye on it to make sure everyone stays healthy. To do that, we need to figure out who is giving C. psittaci to whom so we can come up with evidence-based ways to stop C. psittaci from spreading.

One clone to rule them all: Culture-independent genomics of Chlamydia psittaci from equine and avian hosts in Australia

2 minute read

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In Australia, novel C. psittaci infections in horses raise biosecurity concerns. Here, we used limited whole-genome sequencing to figure out ’who is giving it to who’ and when these modern C. psittaci strains may have appeared in Australia. Our findings suggest that strains from parrots and horses have likely descended from a single progenitor strain.

Phase variation in the glycosyltransferase genes of Pasteurella multocida associated with outbreaks of fowl cholera on free-range layer farms

2 minute read

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In poultry, P. multocida causes fowl cholera which leads to acute and fatal septicaemia with significant economic loss on the poultry industry. In Australia, gene-centric molecular studies are valuable in studying the epidemiology of outbreaks and guiding autogenous vaccination programmes. But these techniques do not provide the resolution for insight into the LPS structure of strains - enter whole-genome sequencing.

Completing the genome sequence of Chlamydia pecorum strains MC/MarsBar and DBDeUG: New insights into this enigmatic koala (Phascolarctos cinereus) pathogen

2 minute read

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We present the first two complete C. pecorum genomes sequenced from diseased koalas. With these genomes, we expand on previous works by improving the gene annotations and by providing the genomic context of important virulence and accessory gene content. These findings lay the foundations for identifying and understanding species specificity and host adaptation behind chlamydial infections affecting koalas.

Networking: a personal touch on tackling social anxiety & introversion

5 minute read

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All of us face networking opportunities throughout our careers. From institutional social mixers to (inter)national conferences, symposia to workshops. In most instances, building networks can be crucial and even life changing. Don’t panic, I don’t know anyone who finds networking easy! Yet, introverts are repeatedly told to act like extroverts?!? Hopefully this blog post will come in handy at your next networking opportunity.

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Alex Siddall

Published:

is using trangenics and CRISPR to study and manipulate the sex determination system in medfly. She is also developing novel technologies to suppress these pest insect populations, such as CRISPR-mediated gene drives. (BBSRC-funded studentship 2019)

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Bioinformatics Virtual Coordination Network

Bioinformatics training course, Online, 2019


Instructor for Bioinformatics Virtual Coordination Network Many research laboratories shut down due to concerns about the COVID-19 pandemic. This leaves academics at all levels in a difficult position - where research in the lab may not resume for many months. We are a group of bioinformaticians and computational biologists committed to helping wet-lab biologists pick up some computational skills/begin computational projects during this global crisis.

Maths Skills for A-level Biology

Book, OUP, 2019

The maths needed to succeed in A Level Science is harder now than ever before. Suitable for all awarding bodies, this practical handbook addresses all of the maths skills needed for A Level Biology specifications. Worked examples, practice questions, ‘remember points’ and ‘stretch yourself’ questions give students the key knowledge and then the opportunity to practise and build confidence.