Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New Insights Into Australia's Unique Platypus

04.11.2009
New insights into the biology of the platypus and echidna have been published, providing a collection of unique research data about the world’s only monotremes.

University of Adelaide geneticist Dr Frank Grützner and his team have authored five of 28 papers which appear in two special issues of the Australian Journal of Zoology and Reproduction Fertility and Development.

The articles shed new light on the extraordinary complex platypus sex chromosome system.

“For the first time we have looked at how the 10 sex chromosomes find each other during sperm development in platypus,” Dr Grützner says.

“We discovered that a remarkably organised mechanism must exist in platypus, where sex chromosomes from one end pair first and then they go down the sex chromosome chain, just like a zipper. There is nothing random about it.”

Dr Grützner and his colleagues also isolated and analysed for the first time the sequence of the male-specific Y chromosomes.

“Previously we knew nothing about the Y chromosomes because only the female platypus genome was sequenced. The data we found has given us valuable clues about the evolution of Y chromosomes in all mammals, including humans,” Dr Grützner says

All 28 published articles in the CSIRO journals have arisen from the Boden Research Conference, “Beyond the Platypus Genome”, hosted by the University of Adelaide in November 2008, which attracted researchers from around the world.

The published papers represent a wide range of monotreme research, from genome to field biology, population genetics and captive breeding, evolution to immunology, venom, sperm and milk in both the platypus and echidna.

“I expect these results to make a major impact in the field of monotreme research and mammal evolution,” Dr Grützner says.

“We have entered a new era in monotreme research, where we are seeing a more integrated approach using genomics, biochemistry and field biology to tackle important questions in monotreme biology. This knowledge will also help us conserve these iconic Australian mammals,” he says.

Dr Frank Grutzner
ARC Research Fellow
School of Molecular & Biomedical Science
The University of Adelaide
Phone +61 8 8303 4812
Mobile +61 417 026 302

Dr Frank Grutzner | Newswise Science News
Further information:
http://www.adelaide.edu

More articles from Life Sciences:

nachricht New printing technique uses cells and molecules to recreate biological structures
20.02.2018 | Queen Mary University of London

nachricht In living color: Brightly-colored bacteria could be used to 'grow' paints and coatings
20.02.2018 | University of Cambridge

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: In best circles: First integrated circuit from self-assembled polymer

For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.

In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...

Im Focus: Demonstration of a single molecule piezoelectric effect

Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale

Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...

Im Focus: Hybrid optics bring color imaging using ultrathin metalenses into focus

For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.

But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...

Im Focus: Stem cell divisions in the adult brain seen for the first time

Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.

The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...

Im Focus: Interference as a new method for cooling quantum devices

Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters

Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

2nd International Conference on High Temperature Shape Memory Alloys (HTSMAs)

15.02.2018 | Event News

Aachen DC Grid Summit 2018

13.02.2018 | Event News

How Global Climate Policy Can Learn from the Energy Transition

12.02.2018 | Event News

 
Latest News

Major discovery in controlling quantum states of single atoms

20.02.2018 | Physics and Astronomy

New printing technique uses cells and molecules to recreate biological structures

20.02.2018 | Life Sciences

New tech for commercial Lithium-ion batteries finds they can be charged 5 times fast

20.02.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>