Navigation Links
Mutant gene responsible for pigeons' head crests

Elizabethan collar."

The researchers found strong evidence that the EphB2 (Ephrin receptor B2) gene acts as an on-off switch to create a head crest when mutant, and no head crest when normal.

They also showed that the mutation and related changes in nearby DNA are shared by all crested pigeons, so the trait evolved just once and was spread to numerous pigeon breeds by breeders.

Full or partial genetic sequences were analyzed for 69 crested birds from 22 breeds, and 95 uncrested birds from 57 breeds. The biologists found a perfect association between the mutant gene and the presence of head crests.

They also showed that while the head crest trait becomes apparent in juvenile pigeons, the mutant gene affects pigeon embryos by reversing the direction of feather buds--from which feathers later grow--at a molecular level.

Other genetic factors determine what kind of head crest each pigeon develops: shell, peak, mane or hood.

Tracking the origins of pigeons

A 2012 study by Shapiro provided limited evidence of pigeons' origins in the Middle East and some breeds' origins in India and indicated kinship between common feral or free-living, city pigeons and escaped racing pigeons.

In the new study, "we included some different breeds that we didn't include in the last analysis," Shapiro says. "Some of those breeds only left the Middle East in the last few decades. They've probably been there for hundreds if not thousands of years. If we find that other breeds are closely related to them, then we can infer those other breeds probably also came from the Middle East."

The scientists found that the owl breeds--pigeon breeds with very short beaks that are popular with breeders--likely came from the Middle East. They're closely related to breeds from Syria, Lebanon and Egypt.

The research also uncovered a shared genetic heritage between breeds from Iran and breeds likely from India, consi

Contact: Cheryl Dybas
National Science Foundation

Page: 1 2 3 4

Related biology news :

1. Researchers generate a mutant mouse model useful in the treatment of neuromuscular diseases
2. Artificial intelligence helps detect subtle differences in mutant worms
3. First in the world - Singapore scientists discover genes responsible for cornea blindness
4. Scientists sequence genome of pathogen responsible for pneumocystis pneumonia
5. Fungus responsible for 5 deaths in the wake of massive tornado
6. Research identifies mechanism responsible for eye movement disorder
7. Scientists discover new type of virus responsible for a devastating disease in snakes
8. A deeper look into the pathogen responsible for crown gall disease in plants
9. New research finds increased growth responsible for color changes in coral reefs
10. Sports and energy drinks responsible for irreversible damage to teeth
11. Fertilizer use responsible for increase in nitrous oxide in atmosphere
Post Your Comments:
Related Image:
Mutant gene responsible for pigeons' head crests
(Date:7/31/2015)... China , 31 de julho de 2015 /PRNewswire/ ... (ICG-10, ) será realizada pela BGI de 22-25 ... . A conferência está celebrando seu ... em 2006, a ICG se tornou uma das reuniões ... um dos encontros científicos mais dinâmicos, entusiastas e prazerosos. ...
(Date:7/31/2015)... julio de 2015 La 10 th International ... medio de BGI del 22 al 25 de octubre de 2015 ... Este año, la conferencia celebra su décimo aniversario. Desde su ... una de las reuniones anuales más influyentes del mundo en ... más dinámicas, entusiastas y mejores a nivel científico. ...
(Date:7/31/2015)... 31, 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... on the growing mobile commerce market and creator of ... provisional patent 62/198989 for ELECTRONIC CRYPTO-CURRENCY MANAGEMENT ... method to advance crypto-currencies such as Bitcoin into the ... uniform way to manage all payments.  ...
Breaking Biology News(10 mins):A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 2A 10a. Conferência Internacional sobre Genômica (ICG-10) será em outubro 3La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 2La 10th International Conference on Genomics (ICG-10) se llevará a cabo en octubre 3NXT-ID Patents Electronic Crypto-Currency Management Technology 2NXT-ID Patents Electronic Crypto-Currency Management Technology 3NXT-ID Patents Electronic Crypto-Currency Management Technology 4
... fat capsules, often added to beauty products. According ... active ingredients deep into the skin and release the ... structure by rejuvenating and smoothing the skin. ... liposomes are not capable of transporting themselves deep into ...
... Organic rice studies have moved to the front burner ... AgriLife Research scientists. Two studies, led by Dr. Fugen ... Station, Corpus Christi, Arkansas, Alabama and South Carolina will ... environmentally friendly way. The research projects are funded by the ...
... Raman spectroscopy has enabled incredible advances in ... for tissue classification and disease recognition, although there ... in a clinical setting. Scientists have now demonstrated ... door to wider biomedical and clinical applications such ...
Cached Biology News:Don't trust liposomes in your beauty products 2Organic rice research moves to front burner in Texas 2Breakthrough study opens door to broader biomedical applications for Raman spectroscopy 2
(Date:8/27/2015)... CELEBRATION, Fla. , Aug. 27, 2015 ... announced that a patient,s eyes—and life—were saved by doctors ... , working with NNFF, NovaBay Pharmaceuticals and Dr. ... Wound Care Center at Seton Medical Center in ... The successful treatment used a breakthrough approach, pioneered by ...
(Date:8/27/2015)... Aug. 27, 2015 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" or ... periods ended June 30, 2015. Biorem,s complete second quarter financial statements ... FINANCIAL HIGHLIGHTS: in ,000,s except earnings per shareThree-months ended , Six ... , 2015 , 2014 Revenue , ... 4,433 Gross profit , 1,656 , 56 ...
(Date:8/27/2015)... GlassesOff (OTCBB: GLSO), a visual neuroscience ... human vision system, announced today a partnership with eight-time All-Star, ... Paul to develop a new mobile app designed for ... real-life on-court performance. Vision is the inception of ... a ball or blocking a pass. The critical impact vision ...
(Date:8/27/2015)... ... August 27, 2015 , ... METTLER TOLEDO's web-based ... down the product choices to a manageable shortlist of bench and floor scales ... models that fit best with the customer’s industry and application. , Side-by-side ...
Breaking Biology Technology:Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 3BIOREM Reports $718,000 Net Earnings for the Second Quarter 2BIOREM Reports $718,000 Net Earnings for the Second Quarter 3Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 2Eight-Time All-Star Chris Paul and GlassesOff Partner to Develop Innovative Mobile App Designed to Improve On-Court Performance 3METTLER TOLEDO Updates Online Scale Selection Tool 2
... PRINCETON, N.J., Feb. 5 Celator Pharmaceuticals today,announced ... scheduled,to present on the company,s business operations and ... Organization (BIO) CEO,and Investor Conference on Tuesday, February ... New York City., About Celator, Celator ...
... (OTC Bulletin Board: NILT), announced today that Peter M. ... & Investor Conference,at the Waldorf-Astoria Hotel in New York ... Mr. Strumph will provide an overview of Nile and ... will be webcast live and can be accessed by ...
... Collections to Begin at ProHEALTH Facility by End of ... Inc. (Amex: NBS ),which is pioneering the pre-disease ... future medical need, today announced,receipt of a provisional license ... stem cells from the New York State,Department of Health ...
Cached Biology Technology:Nile Therapeutics, Inc. to Present at Upcoming BIO CEO & Investor Conference 2NeoStem Announces NY State License for Adult Stem Cell Collection 2NeoStem Announces NY State License for Adult Stem Cell Collection 3
Rabbit anti-phospho-EGFr (Tyr992) - Concentrate...
... Clone/PAD: PS603. Immunogen: ... region surrounding the phosphorylated Ser603 ... Specificity: Specific for synapsin ... (site 3). Reactivity: Rat ...
CMRL Medium-1066 (1X) liquid...
... 11(R)-HETE is biosynthesized by the ... purpuratus, and the fresh water hydra, ... 11(R)-HETE relates to oocyte maturation and ... species.11(R)-HETE is also produced when aspirin-treated ...
Biology Products: