HOME >> BIOLOGY >> NEWS
Sniffing out relatives, bluegill sunfish use self-referencing to recognize kin

Many animal societies involve highly promiscuous mating behavior, making it potentially complicated for individuals to recognize and preferentially help their relatives. Researchers have now shown that offspring of promiscuous male bluegill sunfish compare the odor of nest-mates to their own genetically determined odor, and prefer to associate only with individuals that smell like themselves. This finding may explain how social behavior operates in promiscuous animal societies. The new work is reported by Tim Hain and Bryan Neff of the University of Western Ontario and appears in the September 19th issue of Current Biology, published by Cell Press.

Most animals, including humans, are able to recognize their relatives. This is commonly accomplished by remembering the individuals one associates with during early development, such as nest-mates. However, it is now well known that many animals are also highly promiscuous and thus that nest-mates are not always kin (that is, full siblings). A so-called self-referencing kin-recognition mechanism, where individuals use some aspect of their own appearance, odor, or other characteristic to recognize kin, had been proposed for several animals, but past studies had not yet eliminated the possibility that such cases might involve kin recognition based on learning early in development.

In the new work, the researchers studied the ability of bluegill sunfish larvae to recognize kin. Using in vitro fertilization techniques, the researchers created mixed broods in which nest-mates were not reliably kin--some were full siblings and others were unrelated. They then used behavioral experiments and DNA analysis to show that offspring of the promiscuous "cuckolder" males actively sought and associated with the odor of siblings that they had never encountered previously. This ability to recognize unfamiliar relatives provides compelling evidence for the use of kin recognition through a process in which an individual
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
18-Sep-2006


Page: 1 2

Related biology news :

1. Sniffing out the culprits of dust allergies
2. ACMG recognizes progress made in newborn screening
3. Plants recognize their siblings, biologists discover
4. SNM recognizes R. Edward Coleman with 2007 Georg Charles de Hevesy Nuclear Pioneer Award
5. The Institute of Ecosystem Studies recognized by the Wildlife Society
6. Pezcoller Foundation-AACR International Award for Cancer Research recognizes Mina J. Bissell
7. AACRs Sixth Annual Landon Awards recognize Richard Kolodner, Douglas Lowy and John Schiller
8. What recognizes what in plant disease resistance?
9. Proposed FDA claim recognizes role of key nutrients in dairy in reducing osteoporosis risk
10. First evidence to show elephants, like humans, apes and dolphins, recognize themselves in mirror
11. Ossur recognized with Frost & Sullivan 2006 Innovative Technology Award

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/8/2019)... (PRWEB) , ... May 07, ... ... Hutchinson has been accepted into Forbes Technology Council, an invitation-only community for ... Verified Company, is a full-service biopharmaceutical cold chain engineering firm that guarantees ...
(Date:5/8/2019)... ... May 08, 2019 , ... ... (“Axiom”), a premier provider of unified eClinical solutions and services that are used ... observational studies. Axiom is a leading e-clinical technology company that focuses on Electronic ...
(Date:5/7/2019)... LONG BEACH, Calif. (PRWEB) , ... May 07, ... ... Congress expo organized at the Long Beach Convention and Entertainment Center from May ... time, labor management, and scheduling solutions. These include flexible software, biometric hardware, mobile ...
Breaking Biology News(10 mins):
(Date:4/25/2019)... ... April 23, 2019 , ... Frank is an albino, deaf Great Dane. His owners ... him due to his health issues. Despite his hearing impairment, he was always an active ... two would play all day, every day. As the two grew, playtime became rougher and ...
(Date:4/18/2019)... ... April 18, 2019 , ... ... team that includes a chemical engineer at Worcester Polytechnic Institute (WPI) has developed ... make it possible to manufacture isobutanol and other biofuels more economically. , Isobutanol, ...
(Date:4/16/2019)... ... April 16, 2019 , ... ... applications, and technology, today announced that Bank South Pacific (BSP), the largest regionally ... process. The bank awarded Fulcrum a contract to deliver a fingerprint-based Know Your ...
(Date:4/12/2019)... ... April 12, 2019 , ... An upcoming episode ... educate about innovative tools and devices being used to enhance cognitive skills. This ... , This segment of Advancements will focus on Sound for Life, a neurotechnology ...
Breaking Biology Technology:
Cached News: