Navigation Links
Costly breeding programs for endangered species pay off

the case, but it could be that genes lost through minimal inbreeding allowed the MAI populations to better adapt to the harsh conditions in the wild."

Meffert chose to conduct her experiments on common houseflies because they breed every few weeks. This model system allowed her to simulate several years of breeding for endangered species that breed only once or twice per year.

In order to simulate small populations of rare animals in zoos, breeding lines were founded by just five pairs of males and female flies. Moreover, because flies lay many eggs, and most higher-order animals have small broods, each fly breeding line was allowed to grow by no more than 50 percent per generation.

Each time a pair of flies mated, researchers measured the fitness of the pair by counting the number of eggs the female laid, and by measuring the number of eggs that hatched.

In the MAI breeding scheme, brothers and sisters were never allowed to mate and were instead paired only with offspring from other breeding pairs. In the alternate breeding scheme, the females were allowed to contribute a disproportionate share of offspring to subsequent generations, based on their fitness scores.

The release into the wild was simulated by adding environmental stress. In the "post-release" breeding scenario, temperatures in incubators were altered on a 12-hour cycle based upon the high and low temperatures recorded in Houston that day.

In both strategies, all breeding lines survived in captivity. In the "wild" setting, four of the inbred populations went extinct, compared to just one extinction for the MAI lines.

"Apparently, the stressful environment served to select only the most fit lines while the more benign environment allowed low-fitness lines to persist in captivity," said Meffert.

Though the findings clearly support the case for expensive MAI breeding schemes for some endangered animals, Meffert suspects that might not be the
'"/>

Source:Rice University


Page: 1 2 3

Related biology news :

1. Research suggests fitness of Florida panthers improved by limited breeding with Texas animals
2. El Nino events affect whale breeding
3. Wolves are suffering less from inbreeding than expected
4. Turtles are loyal in feeding as well as in breeding
5. Amgen introduces comprehensive financial assistance programs for cancer patients
6. Investment level in HIV prevention programs related to HIV incidence in the United States
7. Leading scientists rank endangered dolphins, porpoises most in need of immediate action
8. Time and money make a difference in endangered species recovery
9. Removing egg from nest may help save endangered whooping crane
10. Cattle grazing may help rather than hurt endangered species
11. Envisat radar surveillance protects endangered prehistoric fish
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Costly breeding programs for endangered species pay off

(Date:11/7/2014)... Debra Auguste, associate professor, biomedical engineering, in the ... of New York, have identified a molecule that ... the most aggressive forms of breast cancer. , ... mortality rate owing to aggressive proliferation and metastasis ... Professor Auguste,s team, discovered the overexpression of intercellular ...
(Date:11/7/2014)... November 6, 2014 Leading Biometric companies ... mobile security revolutionizing online transactions.  Companies in focus today are: ... (NYSE: BABA ), Google Inc. (NASDAQ: ... Inc. (NASDAQ: EBAY ) and MasterCard Inc. (NYSE: ... and NXTDW), a biometric authentication company focused on the growing ...
(Date:11/6/2014)... occur because of metastasis, yet progress in preventing ... , "It,s been particularly challenging to design drugs ... fellow in systems biology at Harvard Medical School. ... after they,ve already metastasized." , Gujral and colleagues ... help researchers better understand how metastasis begins. Their ...
Breaking Biology News(10 mins):Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6Migration negation 2Migration negation 3
... Motorola Launches New Multi-Modal Biometric Identification Solution ... Delivering Enhanced Performance and Interoperability, SCHAUMBURG, Ill., ... today announced that it has been selected by ... Printrak Biometric Identification,Solution (BIS). Motorola,s latest BIS solution ...
... demonstrate both genetic and pharmaceutical evidence for the role ... multiple sclerosis (MS), providing a potential new way to ... member of a protein family called matrix metalloproteinases (MMPs, ... break down collagen and other components of the body,s ...
... Medical, environmental and chemical conundrums including the mystery of ... create clouds will be unravelled at a conference hosted ... UCLs Materials Simulation Laboratory on Monday 31 March 2008. The ... such as nanosensors that could one day be used for ...
Cached Biology News:Motorola Biometric Identification System Selected by West Virginia State Police 2New horizons in modelling surface processes 2
(Date:11/27/2014)... November 27, 2014 First ...   Elsevier , a world-leading provider ... is pleased to announce the launch of a new ... The launch of Extreme Mechanics ... at the forefront of applied sciences such as micro ...
(Date:11/27/2014)... BELLINGHAM, Washington, and PITTSFIELD, Massachusetts, USA (PRWEB) November 26, ... pinpoint cancer cells with more accuracy, additive systems to ... improve highway safety by analyzing road conditions are among ... Awards for Photonics Innovation . The awards are sponsored ... photonics , and Photonics Media . , Winners ...
(Date:11/26/2014)... 2014 The report on the Global ... the concerned market for revenue forecasts and market trends. ... of 51.9% from 2013 to 2018. At the projected ... of $1,415.6 million by 2018. , Browse through the ... for information about the market segmentation and in-depth analysis ...
(Date:11/26/2014)... The North America Thermal Protective Clothing Market ... analysis of the growth trends and revenue forecasts. ... by 2018, growing at a CAGR of 7.1% ... TOC of the North America Thermal Protective Clothing ... in-depth analysis and industry segmentation supported by various ...
Breaking Biology Technology:Elsevier Announces the Launch of a New Journal: Extreme Mechanics Letters 2Elsevier Announces the Launch of a New Journal: Extreme Mechanics Letters 3Finalists Named for 2015 Prism Awards for Photonics Innovation 2Finalists Named for 2015 Prism Awards for Photonics Innovation 3Finalists Named for 2015 Prism Awards for Photonics Innovation 4Finalists Named for 2015 Prism Awards for Photonics Innovation 5Global Smart Sensor Market in Building Automation is expected to reach a value of $1,415.6 million by 2018 - Report by MicroMarket Monitor 2Global Smart Sensor Market in Building Automation is expected to reach a value of $1,415.6 million by 2018 - Report by MicroMarket Monitor 3Global Smart Sensor Market in Building Automation is expected to reach a value of $1,415.6 million by 2018 - Report by MicroMarket Monitor 4The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 2The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 3
... Silence Therapeutics plc (London AIM:,SLN), a leading ... the successful opposition of a fundamental Alnylam,Pharmaceuticals, Inc. ... its entirety., The Opposition Division of the ... its decision to revoke European Patent EP 1,230 ...
... First-in-Man study success, Ovalum Ltd. launches a multicenter study using ... privately held Israeli medical device company, has announced today successful ... in the coronary arteries. , ... ...
... European Molecular Biology Laboratory (EMBL) discovered a new way to ... computational method that compares how similar the side effects of ... on the same target molecule. The study, published in ... drugs. , Similar drugs often share target proteins, modes of ...
Cached Biology Technology:Silence Therapeutics Announces Successful Opposition of Glover Patent 2Silence Therapeutics Announces Successful Opposition of Glover Patent 3Ovalum Ltd. Announces Success in Coronary Cases Using CiTop™ ExPander™ Guidewire 2Teaching old drugs new tricks 2
...
... is a genetically engineered Klenow polymerase in which ... removed, leaving only the 5 to 3 polymerase ... Klenow Fragment the enzyme of choice for isotopic ... random primed method, and for DNA sequencing by ...
Request Info...
supplied with 10x reaction buffer...
Biology Products: