Navigation Links
Wild sparrow study traces social behaviors in the field to specific gene
Date:1/14/2014

ed up his family and left Atlanta for Argyle, Maine, to tag birds for the study and spend weeks observing their behaviors in a forest.

White-throated sparrows nest on the ground under shrubs or low in trees. They are one of the most common birds seen in the forest and at suburban bird feeders. Their distinctive song is often likened to the phrase, "Old Sam Peabody Peabody Peabody."

To measure parental behaviors in the birds, Horton recorded the number of feeding trips they made for their young during a specified time. To measure aggression, he recorded their song rate in response to a simulated territorial intrusion: A live sparrow in a cage was displayed in the breeding territory of the wild study subjects, accompanied by the broadcast of a male song.

"The song of the birds is a form of aggression," Horton explains. "They're saying 'get out of my territory.' The rate at which they sing gives a measure of their level of aggression."

The field observations were followed by laboratory analyses of the study subjects, to hone in on differences in their neuroendocrine gene expression.

The researchers focused on ER-alpha as a primary candidate, since it is one of the genes captured by the chromosome inversion and had been previously linked to social behaviors in vertebrates.

Their analyses documented how the genetic differentiation between the morphs affects the transcription of ER-alpha. In one brain region thought to be important for aggression, white-striped birds had three times the level of ER-alpha than did the tan-striped birds. By looking at both the behavioral data and the lab data together, the researchers found the expression of ER-alpha in that region and others predicted variation in territorial aggression and parenting.

"The behaviors that differ between the morphs are known to rely on sex steroid hormones such as testosterone," Maney says. "But we already showed in 2009 that even when their t
'/>"/>

Contact: Beverly Clark
beverly.clark@emory.edu
404-712-8780
Emory Health Sciences
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. New technology tracks sparrow migration for first time from California to Alaska
2. Get off my lawn: Song sparrows escalate territorial threats - with video
3. USF researchers show invasive sparrows immune cells sharpen as they spread
4. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
5. Law that regulates shark fishery is too liberal: UBC study
6. New study will help protect vulnerable birds from impacts of climate change
7. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
8. BYU study: Using a gun in bear encounters doesnt make you safer
9. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
10. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
11. Crystal structure of archael chromatin clarified in new study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/1/2014)... alteration of a single nucleotidethe basic building block of DNAcould initiate ... The study appears in The Journal of Cell Biology ... a defect in a gene on the X chromosome called ... women and 1 in 360 men carry a so-called premutation, in ... FMR1 gene is slightly longer than normal. These repeats ...
(Date:8/31/2014)... at the University of Warwick have discovered that ,good, ... , The substance, methylglyoxal - MG, was found to ... bad cholesterol from the body. , Low levels ... heart disease, with increased levels of MG being common ... problems. , Supported by funding from the British ...
(Date:8/31/2014)... When they are not busy attacking us, germs go ... doesn,t always spell disaster for the infected microbes: Sometimes ... harness to, say, expand its diet or better attack ... version of an immune system would robotically destroy anything ... at Rockefeller University have now revealed that one variety ...
Breaking Biology News(10 mins):A nucleotide change could initiate fragile X syndrome 2Sugar substance 'kills' good HDL cholesterol, new research finds 2Discovery reveals how bacteria distinguish harmful vs. helpful viruses 2Discovery reveals how bacteria distinguish harmful vs. helpful viruses 3
... Fingerprinting for Kids" event on April 18 at ... CHESAPEAKE, Va., April 2 Turner Network Sales ... System, Inc. (TBS, Inc.), and truTV, are partnering with Cox ... "Digital Fingerprinting for Kids" event , a service designed ...
... Wins Gold Innovation Award; Senior Scientist Dr. Caleb ... Receives Certificate of RecognitionBOSTON, April 6 ... revolutionary biometric media research firm specializing in Emotional ... Awards from the Advertising Research Foundation.The Innovation Awards, ...
... Aware, Inc. (Nasdaq: AWRE ), a ... announced the preliminary results of its modified Dutch Auction ... City time, on Friday, April 17, 2009.In accordance with ... based on the preliminary count by Computershare Trust Company, ...
Cached Biology News:truTV and Cox Offer Free Digital Fingerprinting to Help Prevent Crimes Against Children 2truTV and Cox Offer Free Digital Fingerprinting to Help Prevent Crimes Against Children 3Innerscope Research(R) Receives Three Great Minds Innovation Awards from the Advertising Research Foundation 2Aware, Inc. Announces Preliminary Results of Dutch Auction Tender Offer 2Aware, Inc. Announces Preliminary Results of Dutch Auction Tender Offer 3
(Date:8/29/2014)... -- Pfenex Inc. (NYSE MKT: PFNX), a clinical-stage biotechnology ... difficult to manufacture proteins including biosimilar therapeutics, today ... for the second quarter ended June 30, 2014. ... initial public offering, we have the capital to ... from our proprietary protein expression platform," stated Bertrand ...
(Date:8/29/2014)... (PRWEB) August 29, 2014 Pittcon is ... MacDonald, and colleague Koichiro Matsuda, Horiba Scientific, have organized ... September 5, 2014. JASIS , Asia’s largest analytical ... 2014, in Makuhari Messe, Japan. , The four ... for Bioanalysis from Single Molecules to Single Cells” will ...
(Date:8/29/2014)... August 29, 2014 Due to a misstatement ... week, the Adult Stem Cell Technology Center, LLC ( ASCTC ... stem cell therapy research that might benefit ALS patients. ... for new stem cell technologies and therapeutic applications, FRC listed ... Bucket Challenge donors who wish not to support research ...
(Date:8/28/2014)... CA (PRWEB) August 28, 2014 Best ... products for the food processing industry, is asking industry ... side-by side comparison of the E2 soap they’re currently ... Sanitizing Foam Soap . Hand hygiene is critical ... the food processing environment. Six key criteria are identified ...
Breaking Biology Technology:Pfenex Reports Second Quarter 2014 Results and Provides Business Update 2Pfenex Reports Second Quarter 2014 Results and Provides Business Update 3Pfenex Reports Second Quarter 2014 Results and Provides Business Update 4Pfenex Reports Second Quarter 2014 Results and Provides Business Update 5Pfenex Reports Second Quarter 2014 Results and Provides Business Update 6Pfenex Reports Second Quarter 2014 Results and Provides Business Update 7Pfenex Reports Second Quarter 2014 Results and Provides Business Update 8Fifth Annual U.S. Symposium at JASIS Organized by Pittcon’s Program Chairman Hub MacDonald 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Best Sanitizers, Inc. Asks Food Industry Professionals: With Fall Harvest On the Way, Is Your E2 Hand Soap Up to the Task? 2
... No longer must you endure the high cost , ... siRNA. The new Silencer siRNA Construction Kit , ... , your capacity for large siRNA screening experiments. ... same gene can be screened for a fraction of the , ...
... Mediating RNA interference (RNAi) with , ... been described in the literature (1). Recombinant adenoviruses ... other methods of nucleic acid , ... non-dividing cells, and can be used in animal model systems. , ...
... For Long Term Studies in Mammalian Cells , ... vectors are now available, each with an antibiotic resistance ... selection in mammalian cultured cells. , ... specific knockdown. Gene specific silencing in mammilian cells , ...
Cached Biology Technology:Test More siRNAs for Less 2Test More siRNAs for Less 3Superior Gene Silencing Using Adenoviral Vectors 2Superior Gene Silencing Using Adenoviral Vectors 3Superior Gene Silencing Using Adenoviral Vectors 4Superior Gene Silencing Using Adenoviral Vectors 5siRNA Expression Vectors with Selectable Markers 2siRNA Expression Vectors with Selectable Markers 3siRNA Expression Vectors with Selectable Markers 4siRNA Expression Vectors with Selectable Markers 5
... (MUC3) is a glycoprotein. distributed in ... extent in breast, lung and salivary gland ... cross-reaction with MUC1 and MUC2. ... Immunogen: MUC3 tandem repeat peptide ...
... bottoms,• Nonreversible lids with ... contamination,• Individual alphanumerical codes ... footprint for ease in ... cell attachment,• Sterilized by ...
Rabbit polyclonal to GABA A Receptor gamma 2 ( Abpromise for all tested applications). entrezGeneID: 2566 SwissProtID: P18507...
Rabbit polyclonal to VPAC2 ( Abpromise for all tested applications). entrezGeneID: 7434 SwissProtID: P41587...
Biology Products: