Navigation Links
Avoiding poisons: A matter of bitter taste
Date:11/18/2013

In most animals, taste has evolved to avoid all things bitter---a key to survival--- to avoid eating something that could be poisonous via taste receptors, known as Tas2r, that quickly spring into action and elicit the bitter sensation.

Published recently in the online early edition of Molecular Biology and Evolution, authors Zhang, et. al., tested the hypothesis that herbivores---and their plant diets---have evolved to have greater number of Tas2r bitter taste receptor genes in their genomes than omnivores or carnivores. They identified Tas2r genes in more than 54 vertebrate species including mammals, birds, reptiles, amphibians, and fishes, and grouped them into functional and non-functional genes. They also constructed evolutionary trees and estimated the loss and birth of Tas2r genes. Finally, they correlated the Tas2r gene repertoire of the species with their diets.

Their analyses supported the hypothesis, showing vertebrates can also be classified as herbivores, carnivores, or omnivores based on their Tas2r genetic profile. The Tas2r gene number in a species also is correlated with the fraction of plants in its diet. They conclude that because plant tissues contain more toxic compounds than animal tissues do, dietary toxins are a major selective force shaping the diversity of the Tas2r genetic repertoire.


'/>"/>

Contact: Joe Caspermeyer
MBEpress@gmail.com
480-258-8972
Molecular Biology and Evolution (Oxford University Press)
Source:Eurekalert

Page: 1

Related biology news :

1. Avoiding a cartography catastrophe
2. Avoiding virus dangers in domesticating wild plants for biofuel use
3. Ultracold matter technology from CU and SRI International licensed to Boulders ColdQuanta
4. Size matters: Large Marine Protected Areas work for dolphins
5. A matter of priorities
6. Theres more star-stuff out there but its not dark matter
7. Want bigger plants? Get to the root of the matter
8. No matter the drilling method, natural gas is a much-needed tool to battle global warming
9. US-Russian collaboration develops new method for sequencing dark matter of life from a single cell
10. Black belts white matter shows how a powerful punch comes from the brain
11. For the rooster, size matters
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/20/2017)... , March 20, 2017 PMD Healthcare ... personal spirometer and Wellness Management System (WMS), a remote, ... Founded in 2010, PMD Healthcare is a Medical Device, ... a mission dedicated to creating innovative solutions that empower ... With that intent focus, PMD developed the first ever ...
(Date:3/9/2017)... and MOUNTAIN VIEW, Calif. , March ... Made Simple," and 23andMe , the leading personal ... food choices.  Zipongo can now provide customers with personalized ... health goals and biometrics, but also genetic markers impacting ... Zipongo,s personalized food decision support platform uses ...
(Date:3/2/2017)... -- Summary This report provides all the information ... and activities since 2010. ... Read the full report: http://www.reportlinker.com/p03605615-summary/view-report.html ... provides an in-depth insight into the partnering activity of one ... demand company reports are prepared upon purchase to ensure inclusion ...
Breaking Biology News(10 mins):
(Date:3/20/2017)... Yorba Linda, CA (PRWEB) , ... March 20, ... ... interference and require expensive and laborious sample preparation methods in order to reduce ... is often underappreciated outside of the area of elemental analysis. , This ...
(Date:3/20/2017)... ... 20, 2017 , ... The fourth annual Hackaday Prize , which aims ... impact on peoples’ lives, launches today. Sponsored by Digi-Key and Microchip ... thousands in cash prizes to engineers, inventors and tinkerers who “build something that matters.” ...
(Date:3/20/2017)... , ... March 20, 2017 , ... ... HEPARIN calibration verification / linearity test kit has received US FDA 510(k) clearance ... VALIDATE® HEPARIN kit evaluates Heparin Anti-Xa activity in a human plasma matrix. ...
(Date:3/20/2017)... , March 20, 2017  Attorney Advertising -- Bronstein, Gewirtz ... purchasers of the BioAmber Inc. ("BioAmber" or the "Company") (NYSE: ... information and assist the investigation by visiting the firm,s site: ... BioAmber and certain of its officers and/or directors have violated ... 1934. ...
Breaking Biology Technology: