Navigation Links
Compound eyes, evolutionary ties

Biologists at the University of California, San Diego have discovered that the presence of a key protein in the compound eyes of the fruit fly (which glow at center due to a fluorescent protein) allows the formation of distinct light gathering units in each of its 800 unit eyes, an evolutionary change to an "open system" that enabled insects to make significant improvements in visual acuity and angular sensitivity. In contrast, beetles (shown surrounding the fruit fly), bees and many mosquito species have the light-gathering units fused together into a "closed system."

In a paper published in this week's early online edition of the journal Nature, the scientists report that one of three proteins needed to form these light gathering units is present in the visual system of fruit flies, house flies and other insects with open eye systems, but conspicuously absent in beetles, bees and other species with closed systems. The researchers showed that the loss of this protein, called "spacemaker," can convert the eyes of fruitflies--which normally have open eye systems--into a closed one. In contrast, the introduction of spacemaker into eyes with a closed system transformed them into an open one.

Charles Darwin was so enamored by the intricate complexity of the eye that he wondered how it could have evolved.

"These results help illustrate the beauty and power of evolution and show how 'little steps'--like the presence of a single structural protein--can so spectacularly account for major changes in form and function," said Charles Zuker, a professor of biology and neurosciences at UCSD and a Howard Hughes Medical Institute investigator, who headed the research team.


'"/>

Source:University of California - San Diego


Page: 1

Related biology news :

1. First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers
2. Newly Discovered Compound Blocks Known Cancer-Causing Protein
3. Compounds in plastic packaging act as environmental estrogens altering breast genes
4. Compound might defeat African sleeping sickness, clinical trial beginning this month
5. Compound from Chinese medicine shows promise in head and neck cancer
6. Anti-cancer Compound In Beer Gaining Interest
7. Compound from marine bacteria shows potential as multiple myeloma therapy
8. Compound in dairy products targets diabetes
9. Family trees of ancient bacteria reveal evolutionary moves
10. Revolutionary nanotechnology illuminates brain cells at work
11. The evolutionary triumph of flower power
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/6/2017)... 2017 Forecasts by Product Type ... by End-Use (Transportation & Logistics, Government & Public Sector, ... Fossil Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation ... Are you looking for a definitive report on the ... ...
(Date:4/5/2017)... April 5, 2017 Today HYPR Corp. ... the server component of the HYPR platform is officially ... the end-to-end security architecture that empowers biometric authentication across ... has already secured over 15 million users across the ... of connected home product suites and physical access represent ...
(Date:4/4/2017)... YORK , April 4, 2017   EyeLock ... today announced that the United States Patent and Trademark ... patent broadly covers the linking of an iris image ... same transaction) and represents the company,s 45 th ... latest patent is very timely given the multi-modal biometric ...
Breaking Biology News(10 mins):
(Date:9/20/2017)... ... , ... Diversity focused business accelerator, The Refinery , announced today they ... the top technology-driven, women-led startups in Boston, MA, New Haven/Hamden, CT, and Newark, NJ. ... going on that week – in Boston, it will be part of the City ...
(Date:9/20/2017)... Hanover, N.J. (PRWEB) , ... ... ... researchers have recently published findings of a study examining the effects of ... individuals with spinal cord injury (SCI). The article, "Neuromechanical adaptations during a ...
(Date:9/20/2017)... (PRWEB) , ... September 20, 2017 , ... ... integration, and building management solutions, announced today the opening of an office in ... Taiwan and the Greater China region, while developing new relationships in the region. ...
(Date:9/19/2017)... PA (PRWEB) , ... September 19, 2017 , ... ... joining Philadelphia’s largest group of funded early-stage tech companies. “Grit” author Angela Duckworth ... tenant. Also joining the ic@3401 community is Cooley, an international law firm with ...
Breaking Biology Technology: