Featured Research

from universities, journals, and other organizations

New Insights Into Australia's Unique Platypus

Date:
November 4, 2009
Source:
University of Adelaide
Summary:
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.

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.
Credit: CSIRO

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.


Story Source:

The above story is based on materials provided by University of Adelaide. Note: Materials may be edited for content and length.


Cite This Page:

University of Adelaide. "New Insights Into Australia's Unique Platypus." ScienceDaily. ScienceDaily, 4 November 2009. <www.sciencedaily.com/releases/2009/11/091102111839.htm>.
University of Adelaide. (2009, November 4). New Insights Into Australia's Unique Platypus. ScienceDaily. Retrieved September 21, 2014 from www.sciencedaily.com/releases/2009/11/091102111839.htm
University of Adelaide. "New Insights Into Australia's Unique Platypus." ScienceDaily. www.sciencedaily.com/releases/2009/11/091102111839.htm (accessed September 21, 2014).

Share This



More Plants & Animals News

Sunday, September 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: San Diego Zoo Welcomes Cheetah Cubs

Raw: San Diego Zoo Welcomes Cheetah Cubs

AP (Sep. 20, 2014) — The San Diego Zoo has welcomed two Cheetah cubs to its Safari Park. The nearly three-week-old female cubs are being hand fed and are receiving around the clock care. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) — Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) — The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Jury Delivers Verdict in Salmonella Trial

Jury Delivers Verdict in Salmonella Trial

AP (Sep. 19, 2014) — A federal jury has convicted three people in connection with an outbreak of salmonella poisoning five years ago that sickened hundreds of people and was linked to a number of deaths. (Sept. 19) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins