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:4/13/2017)... 13, 2017 UBM,s Advanced Design and Manufacturing ... feature emerging and evolving technology through its 3D Printing ... run alongside the expo portion of the event and ... demonstrations focused on trending topics within 3D printing and ... manufacturing event will take place June 13-15, 2017 at the ...
(Date:4/11/2017)... Fla. , April 11, 2017 ... and secure authentication solutions, today announced that it ... Intelligence Advanced Research Projects Activity (IARPA) to develop ... Thor program. "Innovation has been a ... IARPA,s Thor program will allow us to innovate ...
(Date:4/11/2017)... BROOKLYN, N.Y. , April 11, 2017 /PRNewswire-USNewswire/ ... identical fingerprints, but researchers at the New York ... University College of Engineering have found that partial ... fingerprint-based security systems used in mobile phones and ... previously thought. The vulnerability lies in ...
Breaking Biology News(10 mins):
(Date:4/26/2017)... Va. (PRWEB) , ... April 26, 2017 , ... ... make headlines and drive high-level conversations among healthcare industry stakeholders, the discussion surrounding ... Environment – taking place May 15-18, 2017 in Los Angeles, Calif. Hosted by ...
(Date:4/25/2017)... ... 25, 2017 , ... L3 Clinical Trials, the Clinical Research ... now a certified iMedNet eClinical and Electronic Data Capture software designer for clinical ... team to build, customize and manage clinical trial data capture and databases for ...
(Date:4/25/2017)... (PRWEB) , ... April 25, 2017 , ... Leaders of ... of Quorum, will be featured in multiple sessions at this week’s Association of ... emerging trends to best practices in clinical research. , "We are excited to present ...
(Date:4/21/2017)... ... , ... Having worked on the design of the innovative Triton™ lab ... top lab design architects from around the country at the Lab Design Conference 2017 ... Engineering Greg Casey will be at the show, where they will highlight the unique ...
Breaking Biology Technology: