Navigation Links
Cosmopolitan eels
Date:4/7/2010

ed, but virtually none of it had any geographic structure. In other words where the eel was living didn't predict its genetic makeup.

"Some of the sampling sites are about 22,000 kilometers apart, so essentially two-thirds of the globe," says Reece. "Yet you find the same alleles in South Africa as you do in Panama."

"The only way to get shared genetic material across these distances," says Reece, "is through gene flow." The leptocephali, in other words, are efficiently ferrying genes from one population to the next, keeping the gene pool well stirred.

Several other reef fishes are also known to have highly dispersive pelagic stages. However, even these species show genetic partitions at major biogeographic barriers. The moray eels are in a class unto themselves, the champion dispersers.

Unsolved mystery

Although the phylogeographic survey answered some questions, it raised others.

If both species of eel are able to maintain genetic connectivity across the entire ocean basin, how did the species arise in the first place?

And not just these two species. Altogether there are 150 species of moray eel in the Indo-Pacific, including the giant, ribbon, snowflake, zebra, dragon, pink-lipped and freckled morays, the slenderjaw, hookjaw, viper, vagrant, lipspot and enigmatic eels . . . and many more.

When and how did they form separate species if their larvae make them nearly impervious to geographic isolation?

To further complicate things, says Reece, many of eel species share habitat, share distributions and share prey items. In most groups, he says, when that happens one species outcompetes the other and the loser disappears. The same rules don't seem to apply in the morays and nobody knows why.

In other words, he may have found his postdoctoral as well as his doctoral research lurking under that ledge.


'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Cosmopolitan microbes -- hitchhikers on Darwins dust
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cosmopolitan eels
(Date:8/22/2014)... release is available in German . ... substances, in PCFs proteins are fixated in a way ... crystals. Next, the HZB and Fudan University researchers are ... as functional materials. Their findings are being published today ... 10.1038/ncomms5634). , Proteins are sensitive molecules. Everyone knows that ...
(Date:8/22/2014)... rhino reproduction in Europe highlights how hormone analysis ... Researchers from Chester Zoo, The University of Manchester ... six-year study which encompassed 90% of European population ... the research as part of her PhD at ... black rhinoceros breed well in captivity, not all ...
(Date:8/22/2014)... and can reduce free radical damage. Can ... stress? Jianbo Zhao and co-workers from the ... China discovered that green tea polyphenol effectively ... indicating green tea polyphenols play a protective ... stress. The relevant study has been published ...
Breaking Biology News(10 mins):Proteins: New class of materials discovered 2Hormone analysis helps identify horny rhinos 2
... Research (LICR) and the University of California, San Diego ... identifying functional elements in the human genome, according to ... , While the DNA sequence can identify genes (the ... fundamental questions of 'how,' 'when' and 'where' gene products ...
... be caused by hypoglycemic coma actually occurs when glucose is ... rodents led by researchers at the San Francisco VA Medical ... and may be of clinical significance for the treatment of ... cannot be immediately extrapolated to humans. , Insulin is ...
... over a scientific paper that is putting Korea's scientific ... pitted a young Korean doctor, Jeong Hwan Kim, against ... the most powerful players in the country's struggle for ... threatening to disrupt Korea's efforts to recover scientific credibility ...
Cached Biology News:Beyond the DNA: Chemical signatures reveal genetic switches in the genome 2Glucose triggers brain cell death in rats after hypoglycemic coma 2Glucose triggers brain cell death in rats after hypoglycemic coma 3Row over study puts Korea's scientific community under scrutiny again 2
(Date:8/21/2014)... His Majesty Willem-Alexander, King of the Netherlands ... His Majesty Willem-Alexander, King of the Netherlands, has announced ... POET-DSM Advanced Biofuels’ Project LIBERTY cellulosic ethanol plant in ... will take part in the Grand Opening Ceremony to ... p.m. and tour the plant. POET-DSM is a joint ...
(Date:8/21/2014)... Aug. 21, 2014 OTC Markets ... Inc., a biotechnology company, on its approval to ... traded on OTCQX®, the best marketplace for established ... Group. Logo - http://photos.prnewswire.com/prnh/20110118/MM31963LOGO ... successful execution of its growth strategy and achievement ...
(Date:8/21/2014)... August 21, 2014 Gallus ... contract development and manufacturing organization (CMO) announced today ... Inc., an oncology company focused on the development ... to manufacture the anti-prostate specific membrane antigen (PSMA) ... candidate. Under the agreement the antibody will ...
(Date:8/20/2014)... it that American Indians largely were wiped out by ... tuberculosis brought to the New World by European explorers., ... people lived in the Americas shortly before Europeans arrived, ... European diseases., But new research led by anthropological geneticists ... of the University of Tubingen in Germany indicates the ...
Breaking Biology Technology:His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 2His Majesty Willem-Alexander, King of the Netherlands, to Attend Project LIBERTY opening 3OTC Markets Group Congratulates Immune Pharmaceuticals on NASDAQ Listing 2Gallus Enters Agreement with Progenics Pharmaceuticals, Inc. for Manufacture of Anti-PSMA Monoclonal Antibody 2Gallus Enters Agreement with Progenics Pharmaceuticals, Inc. for Manufacture of Anti-PSMA Monoclonal Antibody 3Unusual discovery leads to fascinating tuberculosis theory 2Unusual discovery leads to fascinating tuberculosis theory 3
... Inc., a private clinical-stage biotherapeutics company focused on the ... cancer, today announced that key data from its Phase ... along with data from other JX-594 clinical trials, will ... Cell Therapy (ASGCT) Annual Meeting taking place May 18-21, ...
... Reportlinker.com announces that a new market research ... Industrial Biotechnology China News 1104 ... the regional turbulence in Egypt and Libya areas, ... at USD102 per barrel on March 2, 2011; ...
... SHENYANG, China, May 11, 2011 /PRNewswire-Asia-FirstCall/ -- 3SBio Inc. ... a leading China-based biotechnology company focused on researching, developing, ... financial results for the first quarter ended March 31, ... Financial Highlights: Total net ...
Cached Biology Technology:Jennerex to Present JX-594 Liver Cancer Clinical Data at American Society of Gene and Cell Therapy Meeting 2Jennerex to Present JX-594 Liver Cancer Clinical Data at American Society of Gene and Cell Therapy Meeting 3Jennerex to Present JX-594 Liver Cancer Clinical Data at American Society of Gene and Cell Therapy Meeting 4Reportlinker Adds Industrial Biotechnology China News 1104 2Reportlinker Adds Industrial Biotechnology China News 1104 33SBio Inc. Announces Unaudited First Quarter 2011 Results 23SBio Inc. Announces Unaudited First Quarter 2011 Results 33SBio Inc. Announces Unaudited First Quarter 2011 Results 43SBio Inc. Announces Unaudited First Quarter 2011 Results 53SBio Inc. Announces Unaudited First Quarter 2011 Results 63SBio Inc. Announces Unaudited First Quarter 2011 Results 73SBio Inc. Announces Unaudited First Quarter 2011 Results 83SBio Inc. Announces Unaudited First Quarter 2011 Results 93SBio Inc. Announces Unaudited First Quarter 2011 Results 103SBio Inc. Announces Unaudited First Quarter 2011 Results 113SBio Inc. Announces Unaudited First Quarter 2011 Results 123SBio Inc. Announces Unaudited First Quarter 2011 Results 13
Mouse Cell Line Slides...
Mouse Cell Line Slides...
Request Info...
... Signet offers the most comprehensive, cost-effective ... We have incorporated unprecedented quality into ... This includes proven detection chemistries and ... the TechMate protocol. It also includes ...
Biology Products: