Navigation Links
Mitochondrial genes matter!
Date:1/14/2014

Contrary to common belief, mitochondrial genes seem to matter for how well individuals survive and reproduce. These new results are reported by researchers at Uppsala University, Sweden, who studied the genes of a common beetle species.

Mitochondria are vital power plants of cells. They carry their own genes, which are inherited only through females, and these genes vary greatly between individuals. In the latest issue of the prestigious scientific journal Ecology Letters, researchers from Uppsala University show for the first time that differences in the mitochondrial genes that individuals carry actually affect how well they survive and reproduce.

It took the researchers two years to conduct the experiments, where they followed 180 populations of the seed beetle Callosobruchus maculatus for more than 10 generations. The results are based on gene sequence data from more than 2000 individuals.

Remarkably, the authors found that individuals who carried rare mitochondrial genes were consistently those who did best.

"This provides an explanation for why genetic variation is maintained. Much like a pendulum of a clock will never stop in either of the extreme sideway positions" says Professor Gran Arnqvist, one of the authors of the study.

For decades, much biological research has rested on the assumption that different variants of the same mitochondrial gene are equivalent in terms of function of the gene. These genes have therefore been extensively used as a neutral "markers" that allow, for example, determination the size of populations or reconstructions of the history of immigration into an area. The authors of the new study point out that this usage is very problematic indeed if different versions of the same mitochondrial gene are not functionally equivalent.


'/>"/>

Contact: Göran Arnqvist
Goran.Arnqvist@ebc.uu.se
46-702-935-032
Uppsala University
Source:Eurekalert  

Page: 1

Related biology news :

1. Discovery of a new family of key mitochondrial proteins for the function and viability of the brain
2. FASEB SRC announces conference: Mitochondrial Assembly & Dynamics in Health, Disease & Aging
3. Mitochondrial mutations: When the cells 2 genomes collide
4. Biologists map rare case of fitness-reducing interaction in nuclear, mitochondrial DNA
5. Rare mitochondrial mutations -- maybe not so rare?
6. Oxidative stress, mitochondrial damage and neurodegenerative diseases
7. Extremely rare mitochondrial DNA deletions associated with aging can be accurately detected with Droplet Digital PCR
8. SIRT5 regulation has dramatic effect on mitochondrial metabolism
9. Planarian genes that control stem cell biology identified
10. Culprit behind unchecked angiogenesis identified
11. Researchers identify genes that may help in ovarian cancer diagnosis and prognosis
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mitochondrial genes matter!
(Date:2/16/2017)... , Feb. 16, 2017  Genos, a ... announced that it has received Laboratory Accreditation from ... Accreditation is presented to laboratories that meet stringent ... demonstrate scientifically rigorous processes. "Genos is ... in laboratory practices. We,re honored to be receiving ...
(Date:2/13/2017)... 13, 2017 Former 9/11 Commission border counsel ... Janice Kephart of Identity Strategy Partners, LLP, ... Trump,s "Executive Order: Protecting the Nation From Foreign ... "As President Trump,s ,Travel Ban, Executive Order ... essentially banned the travel ban, it is important that ...
(Date:2/8/2017)... About Voice Recognition Biometrics Voice recognition biometrics ... a stored voiceprint template. Acoustic features of an ... are compared to distinguish between individual voices. Voice ... PCs already have a microphone and can authenticate ... are most likely to be deployed in telephone-based ...
Breaking Biology News(10 mins):
(Date:3/22/2017)... The global chronic kidney disease ... by Transparency Market Research (TMR). The top four players, ... Inc., accounted for a share of only 41.4% in ... market are focusing aggressively on mergers, acquisitions, and strategic ... to lead to market consolidation in the next few ...
(Date:3/22/2017)... ... ... Premier executive recruitment firm, Slone Partners, is proud to have been named a Top ... Hunt Scanlon Media is one of the most respected life science publications in the ... sector. , “It is a great honor for Slone Partners to be part of ...
(Date:3/22/2017)... , ... March 21, 2017 , ... The Conference Forum ... (CMO Summit) to be held on May 10-11, 2017, at the Colonnade Hotel in ... specifically for Chief Medical Officer peer-to-peer learning, benchmarking and support. , “The Chief Medical ...
(Date:3/22/2017)... Israel , March 22, 2017  BrainStorm ... adult stem cell technologies for neurodegenerative diseases, announced today ... provide an update on new developments and a corporate ... Biopartnering and Investment Forum, being held on March 27 ... Neuroscience Biopartnering ...
Breaking Biology Technology: