Navigation Links
Birds evolved ultraviolet vision several times
Date:2/10/2013

Ultraviolet vision evolved at least eight times in birds from a common violet sensitive ancestor finds a study published in BioMed Central's open access journal BMC Evolutionary Biology. All of these are due to single nucleotide changes in the DNA.

Modern daytime birds either have violet sensitive or ultraviolet sensitive vision. Being ultraviolet sensitive alters visual cues used to select a mate, avoiding predators, and in finding food. Researchers from Uppsala University and the Swedish University of Agricultural Sciences sequenced the genes responsible for producing the light sensitive pigment (SWS1 opsin) from 40 species of birds, in 29 families.

Generating a phylogenetic tree from these sequences shows that there have been at least 14 shifts between violet and ultraviolet sensitive colour vision and back. An ancestor of Passeriformes (perching birds including larks, swallows, blackbirds, finches, birds of paradise, and crows) and Psittaciformes (parrots and allies) changed from the ancestral violet sensitive colour vision to ultraviolet and, in some cases passerines have reverted back to violet vision.

Anders deen and Olle Hstad, who performed this research commented, "There are two different amino acid alterations that can each change bird colour vision from violet to ultraviolet. One particular single nucleotide change has occurred at least 11 separate times. In general during evolution once a colour shift has occurred all species from this ancestor keep it meaning that the rest of the eye and physiology, must also evolved to 'cement' in the new colour sensitivity."


'/>"/>

Contact: Hilary Glover
hilary.glover@biomedcentral.com
44-020-319-22370
BioMed Central
Source:Eurekalert

Page: 1

Related biology news :

1. New study will help protect vulnerable birds from impacts of climate change
2. Not just for the birds: Man-made noise has ripple effects on plants, too
3. UCSB researchers find that less is more, for female cowbirds
4. Hitch-hiking with birds for life
5. Songbirds learning hub in brain offers insight into motor control
6. Scientists find that rain may not always be a welcome thing to waterbirds
7. Restoring streamside forests helps songbirds survive the winter in Californias Central Valley
8. Better looking birds have more help at home with their chicks
9. Seabirds study shows plastic pollution reaching surprising levels off coast of Pacific Northwest
10. Helping family is key for social birds
11. Fossil egg discovered in Lleida (Spain) links dinosaurs to modern birds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/18/2014)... BOSTON , Nov. 17, 2014   ... HealthCare and EMC collaborate to develop The Partners ... , The Partners Data Lake will allow ... to improve diagnostics, treatment and the lives of ... support research and clinical activities across the Partners ...
(Date:11/12/2014)... , Nov. 12, 2014 Crossmatch™, a ... that its U.are.U ® fingerprint readers have been ... in Central Mexico . The bakery ... to eliminate payroll issues caused by employees clocking in ... the U.are.U fingerprint readers, Montparnasse relied on paper timecards ...
(Date:11/7/2014)... , Nov. 7, 2014  In conjunction with the ... Police Departments, The Community Foundation of the Verdugos has ... DNA JUSTICE PROJECT," a $250,000 initiative to keep the ... phase. In its first six months of existence, the Lab ... evidence support for local law enforcement. "Because our ...
Breaking Biology News(10 mins):Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5Montparnasse Pasteleria Achieves Time and Attendance Transparency with Crossmatch U.are.U Fingerprint Readers 2Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2
... tiniest and the heaviest fetuses are at much higher risk ... has found. , Fetuses who are "severely small for gestational ... fetuses, disproportionately account for about six per cent of all ... that are "severely large for gestational age," or weigh above ...
... The human gut is home to a teeming ecosystem ... and disease. But while the gut microbiota is interacting ... viruses. In a study published online in ... system, revealing a common set of viruses associated with gut ...
... - New research in Nature Medicine shows ... making system protects mice from otherwise fatal radiation poisoning. ... by the journal on June 24 say their ... toxicity during cancer treatment or environmental exposures such ...
Cached Biology News:Smallest and largest fetuses at greater risk of being stillborn, research finds 2Gut microbes battle a common set of viruses shared by global populations 2Boosting blood system protein complex protects against radiation toxicity 2Boosting blood system protein complex protects against radiation toxicity 3
(Date:11/22/2014)... (PRWEB) November 22, 2014 Respiratory ... simulate the proper management of life-like respiratory ailments ... lung devices . Grand Rapids-based, Michigan Instruments Inc. ... donate two of the respiratory simulation units to ... each. Grand Valley and Muskegon Community College are ...
(Date:11/21/2014)... 21, 2014 , Todd ... Mariano Rodríguez es elegid vicepresidente senior de ... KLOX está en marcha para comenzar de forma rápida la ... de reciente aprobación en Europa   , ... al anunciar los siguientes nombramientos: Todd Martensen ...
(Date:11/21/2014)... 20, 2014 Offering a complete line ... Entris Balance promotion . The Sartorius Entris Balance is ... high accuracy, and easy-to-maintain balance entry level balance. , ... was designed to help customer’s bridge the gap between ... that is very durable. Sartorius is the second biggest ...
(Date:11/21/2014)... November 20, 2014 The ... Chassis, Oligos, Enzymes, Cloning kits), Technology (Bioinformatics, ... (Biofuels, Pharmaceuticals, Biomaterials, Bioremediation) - Global Forecast ... market drivers, threats, opportunities, and challenges. , ... figures spread through 185 pages and in-depth ...
Breaking Biology Technology:Michigan Instruments Donates Two Respiratory Simulation Training and Test Lung (TTL) Devices to Grand Valley State University 2Michigan Instruments Donates Two Respiratory Simulation Training and Test Lung (TTL) Devices to Grand Valley State University 3KLOX Technologies anuncia sus nombramientos ejecutivos 2KLOX Technologies anuncia sus nombramientos ejecutivos 3KLOX Technologies anuncia sus nombramientos ejecutivos 4KLOX Technologies anuncia sus nombramientos ejecutivos 5Pipette.com Announces an Extension on the Sartorius Entris Balance Promotion to the End of 2014 2Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 2Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 3Synthetic Biology Market Expected to Reach $5,630.4 Million in 2018 - New Report by MarketsandMarkets 4
... , , SAN DIEGO, Aug. ... Chair Professor of the Department of Biochemistry and Director of ... and Technology (HKUST), has joined their scientific advisory board. ... recipient of China,s highest honor in the natural sciences, the ...
... , , , ... Bulletin Board: BLFS), a leading manufacturer and marketer of biopreservation ... has entered into a non-exclusive distribution agreement with STEMCELL Technologies, ... of the StemCell Group of companies, is a leading provider ...
... new device, called a "spaser," is the first of ... critical component for possible future technologies based on "nanophotonic" ... Professor of Electrical and Computer Engineering at Purdue University. ... current lasers can,t be made small enough to integrate ...
Cached Biology Technology:Professor Nancy Ip Joins aTyr Pharma's Scientific Advisory Board 2BioLife Solutions and STEMCELL Technologies Announce Worldwide Distribution Agreement 2BioLife Solutions and STEMCELL Technologies Announce Worldwide Distribution Agreement 3New nanolaser key to future optical computers and technologies 2New nanolaser key to future optical computers and technologies 3
...
... Cetac Ultrasonic Nebulizers are available in two product ... between these two models is that the 6000AT+ ... create a drier aerosol for improved detection limits ... limits for a range of elements by 10-40 ...
... are available in two product models - the ... models is that the 6000AT+ includes a membrane ... aerosol for improved detection limits and reduced oxides. ... range of elements by 10-40 times. Note that ...
... Thermus aquaticus (strain YT1) is cloned ... highly purified to produce Taq DNA ... amplification and sequence testing of DNA ... Taq DNA polymerase has been tested ...
Biology Products: