Navigation Links
Adaptation is (not) in the eye of the beholder
Date:6/24/2010

The limited immune response in the eyes of freshwater fishes has created a great home for parasites, according to research published online in the journal Molecular Ecology. The study provides a lens into the evolutionary world of the larval flukes that parasitize Canadian fish.

"Canada probably has the best studied freshwater fish parasites in the world, so we were amazed when we found four times more species of flukes in a few fishes from the St. Lawrence than were previously known in all fishes across the whole country," says Sean Locke, who recently obtained his PhD from Concordia University in Montreal, Quebec.

The larval flukes that infect freshwater fish mostly appear as microscopic, indistinct white blobs that are nearly impossible to identify. As a result, biologists have long had only a vague idea about how many fish‐dwelling parasite species exist.

The prevailing view has been that only a small number of generalist species infect all sorts of different fish. But Locke and his colleagues used DNA barcoding to show for the first time that this was not the case. The parasites found in most tissues including muscle, gills, brains and internal organsspecialized on one or a few closely related fishes, the researchers found. In contrast, the lenses of fish eyes were home to five species of non‐specialized flukes that thrived in many different fish species and even frogs.

"The lens seems to be the host's Achilles' heel," says Locke. "An immune response there would blind the fish, so it appears evolution has favoured immunological restraint. The parasites there haven't needed to specialize in dealing with any one host's immune response and hence the same parasite species appear in all sorts of different fish."

The findings may have practical benefits for wildlife managers and fish farmers. Larval flukes are among the most common fish parasites in the world and cause problems in aquaculture and s
'/>"/>

Contact: Life Science News
Lifesciencenews@wiley.com
44-012-437-70375
Wiley-Blackwell
Source:Eurekalert

Page: 1 2

Related biology news :

1. Adaptation to parasites drive African fishes along different evolutionary paths
2. Dissecting the genetic components of adaptation of E. coli to the mouse gut
3. Bacteria reveal secret of adaptation at Evolution Canyon
4. Genetic adaptations key to microbes survival in challenging environment
5. Scripps Florida scientists show lifeless prions capable of evolutionary change and adaptation
6. Experiential learning teaches change and adaptation
7. Phylogenetic analysis of Mexican cave scorpions suggests adaptation to caves is reversable
8. Pain is in the eyes of the beholder
9. Beauty is in the eye of the beholder?
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2015)... , Apr. 6, 2015 NXT-ID, Inc. ... a biometric authentication company focused on the growing ... filed provisional patent 62/143028 for MINIATURE, ... ENERGY TRANSFER  NXT-ID introduces a new ... This patent surrounds the use of miniature antenna ...
(Date:4/2/2015)... -- At its 2015 ACMG Annual Clinical Genetics Meeting ... American College of Medical Genetics and Genomics (ACMG) announced ... Members of the ACMG Board of Directors serve as ... its policies and programs. ACMG is the national organization ... eventful time in medical genetics and genomics.  We are ...
(Date:4/2/2015)... Sweden , April 2, 2015 ... its touch fingerprint sensor FPC1025 from the distributor World ... will commence during Q2 2015 although the major part ... The sensors will be used by smartphone manufacturers in ... 110 MSEK is included in the communicated revenue guidance ...
Breaking Biology News(10 mins):NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 2NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 3NXT-ID Patents Miniature, Low Power Wireless Magnetic Stripe 4American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 2American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 3American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 4American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 5American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 6American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 7American College of Medical Genetics and Genomics Announces New Board Members: Dr. Louanne Hudgins is ACMG President-Elect 8Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2
... Center for Mitochondrial and Epigenomic Medicine at The ... Genetics Prize of The Gruber Foundation. This prestigious ... of the wide-ranging role of mitochondria in the ... evolution. Mitochondria are the tiny power plants ...
... Many lung cancers are driven by mutations in the ... that many successful modern treatments block EGFR activity. Unfortunately, ... lung cancers eventually relapse. A University of Colorado Cancer ... Research details a signaling pathway, known as ,the ...
... of tropical biologists congratulated Brazil for its global ... recent developments could jeopardize that position, undermining progress ... ecosystems outside the Amazon rainforest. Forgoing the ... conservationists met in Bonito, Brazil at the 49th ...
Cached Biology News:Dr. Douglas Wallace to receive Gruber Foundation 2012 Genetics Prize 2Study identifies pathway to enhance usefulness of EGFR inhibitors in lung cancer treatment 2Scientists warn Brazil's environmental leadership at risk 2Scientists warn Brazil's environmental leadership at risk 3
(Date:4/16/2015)... 16, 2015 The Council for ... prestigious 2015 Borlaug CAST Communication Award goes to ... Tuskegee University in Alabama. Award nominees must demonstrate ... presentations; and/or the use of television, radio, or ... areas. As a specialist in the field of ...
(Date:4/16/2015)... Portage Biotech Inc. ("Portage" or "the Company" )) (OTC ... announce that the Company will be presenting  at the ... held in London, UK . Portage,s ... James Mellon , a director of Portage, will provide ... at its subsidiaries, Portage Pharmaceuticals Ltd. ("PPL"), and Biohaven ...
(Date:4/16/2015)... , April 16, 2015 /CNW/ - Bioenterprise Corporation is ... newest office in Charlottetown , PEI.  ... Prince Edward Island ADAPT Council for the commercialization of ... forward to working with PEI ADAPT.  They have been ... more than a decade," explains Dave Smardon , ...
(Date:4/16/2015)... A new infographic compiles useful information ... institutions to learn how Appleā€™s new framework can change ... is ideal since Apple made Research Kit ... open-source framework for developing medical research apps that Apple ... researchers to collect secure clinical data and communicate via ...
Breaking Biology Technology:The 2015 Borlaug CAST Communication Award Goes to Channapatna Prakash 2Portage to Present at Master Investor 2015 in London, UK 2Portage to Present at Master Investor 2015 in London, UK 3Portage to Present at Master Investor 2015 in London, UK 4Bioenterprise Corporation Expands into the Maritimes 2Infographic Illustrates Potential for Research Kit to Impact Clinical Research 2Infographic Illustrates Potential for Research Kit to Impact Clinical Research 3
... N.J., Jan. 13 At the end of December,Trinitas ... treatment,centers in the state of New Jersey to offer ... Systems (NYSE: VAR ).,RapidArc is a fast, ... eight,times faster than is possible with conventional radiation therapy,technologies. ...
... Cumberland Pharmaceuticals Inc.,is pleased to announce the appointment ... Lee will draw upon his 24 years of pharmaceutical ... commercialization of,new products for the company. , ... "We are extremely pleased to ...
... a privately held development-stage biopharmaceutical company located in San ... President of Corporate Development, will present a corporate overview ... CA, on January 14, 2009 at 2:15pm. NexBio,s ... the quality of life by creating and commercializing novel, ...
Cached Biology Technology:Trinitas Comprehensive Cancer Center Now Offering Cancer Patients Faster, Ultra-Precise Radiation Using New RapidArc Technology 2Trinitas Comprehensive Cancer Center Now Offering Cancer Patients Faster, Ultra-Precise Radiation Using New RapidArc Technology 3NexBio to Present at 2009 Biotech Showcase 2NexBio to Present at 2009 Biotech Showcase 3
... Reagents for the differentiation of mouse embryonic ... bodies exist in the midbrain, where they ... the ventral tegmental area, and the retrorubral ... to extensive forebrain dopamine innervation ( e.g.projections ...
... designed for RNA aptamer screening and binding ... powerful Paraflo microfluidic on-chip synthesis platform. Thousands ... synthesized on-chip and LC Sciences can provide ... are available as part of our comprehensive ...
... the C-terminal end of the mouse retinoic acid receptor beta (RAR*). ... of RAR*. The sequence of PEP-005 is (amino to carboxy terminus): ... S - S - V - E - N - S - ... L - L - Q (The N-terminal cysteine has been added ...
... ELx50 is a fast and versatile automated ... our patented Dual-ActionTM 16-channel manifold. This breakthrough ... dispense and aspiration manifolds for overfill washing ... 384-well formats. The problem of fitting dispense ...
Biology Products: