Navigation Links
Study looks at mitochondrial variation in sperm traits and sperm competitive ability
Date:9/19/2007

RENO, Nev. -- University of Nevada, Reno researchers Jeanne and David Zeh of the Department of Biology have received a five-year, $650,000 grant from the National Science Foundation to investigate the effects of natural mitochondrial variation on sperm traits and sperm competitive ability.

Researchers have found mitochondrial mutations to be one of the primary causes of low sperm count and poor sperm mobility in humans. However, in the field of sexual selection, where maternal inheritance of mitochondria may well have its greatest impact, female-limited response to selection has been largely overlooked. The Zehs study promises to fill in some of this knowledge gap in evaluating the importance of maternal inheritance of mitochondria for sexual selection and male adaptation. Mitochondria are the principal energy source of a cell, and convert nutrients into energy as well as performing many other specialized tasks.

The Zehs study, which will use a neotropical pseudooscorpion Cordylochernes scorpioides as a model system, will encompass whole-genome mitochondrial sequencing, a comprehensive analysis of the physiological and morphological characteristics of sperm that are likely to be important in competitive ability, a large-scale sperm competition experiment designed to identify the target of selection acting on sperm traits, and a replicated, multi-generation experiment in which the evolutionary response to selection on the trait most important in sperm competition will be assessed using both maternally- and paternally-based selection regimes.

Jeanne Zeh, an assistant professor of biology, and David Zeh, an associate professor of biology, both believe that their study will help refine the efforts to understand mitochondrial effects on male fertility.

The fundamental insight that strict maternal inheritance of mitochondria constrains the ability of males to respond adaptively to selection has led to major advances in the stu
'/>"/>

Contact: John Trent
jtrent@unr.edu
775-784-4959
University of Nevada, Reno
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Rural Canadians travel far for specialists: study
2. A new study surpasses Gene Therapy Hurdle
3. Tomato Sauce reduces Cancer Risk- Study
4. A question on study of Adult Stem Cell
5. Study on obesity and heart failure
6. National Lung Study in the process
7. Marijuana gateway theory strengthened by study of twins
8. Old theory of adaptation confirmed by new study
9. Study casts doubt on keyboard ills
10. Gene study links endometriosis, infertility
11. Study reveals how stress can make you sick
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2015)... , ... September 02, 2015 , ... Chris Harrison of ... 2015. “It was a simple decision, really,” says Chris. “We have a lot of ... know the brands that work best for them—so we’ve given them the convenience of ...
(Date:9/2/2015)... ... September 02, 2015 , ... Based in Beverly Hills, Luxury Line Auto Rental ... vehicles based on which of the latest and greatest vehicles their customers want to ... pursuit of this goal: a 2015 Rolls Royce Wraith rental in Los Angeles ...
(Date:9/2/2015)... ... September 02, 2015 , ... Date and time: Oct. 3, 2015, 9 a.m. ... 600 Tomlinson Road, Bryn Athyn, Pa 19009 , Cost: $50 per person; includes lunch ... York Times best-selling author Sam Keen based on his new book which he co-authored ...
(Date:9/2/2015)... ... September 02, 2015 , ... ... Affairs Officer following the departure of Kristen Dietz, former Chief Operations Officer. ... released the following statement welcoming Mr. Salot: “ Stanley H. Salot Jr , ...
(Date:9/2/2015)... ... 2015 , ... The medical waste management market is expected to reach USD ... 5.2%. The global medical waste management market is segmented based on type of waste, ... to register the highest growth rate in the medical waste management market, by service, ...
Breaking Medicine News(10 mins):Health News:Harrison's Comfort Footwear Announces Expansion with New CHarrison Online Store 2Health News:Luxury Line Auto Rental Announces Addition of the Rolls Royce Wraith to their Luxury Fleet 2Health News:justCommunity, Inc. and Bryn Athyn Men’s Groups Present Workshop on Family Reconciliation 2Health News:Healtec® Announces Executive Leadership Change 2Health News:Medical Waste Management Market Growing at 5.2% CAGR to 2020 2Health News:Medical Waste Management Market Growing at 5.2% CAGR to 2020 3Health News:Medical Waste Management Market Growing at 5.2% CAGR to 2020 4Health News:Medical Waste Management Market Growing at 5.2% CAGR to 2020 5
... ... ... , ... , , , ...
... ... this weekend, taking the Olympic Gold Medal at the 2010 Vancouver Winter Olympics, bringing SpiderTech, ... ... World Champion USA1 4-man Bobsled team, steamed to new heights this weekend, taking the Olympic ...
... ... Marathon des Sables, a 250km (155 miles) race across the Sahara desert this April 2010. Gary ... , ... The Marathon des Sables will cover 250km/155 miles (in sections approximate to 25, 34, 38, 82, ...
... DC, USA Today, during the 39th Annual ... convening at the Walter E. Washington Convention Center ... Ohio State University, will present a poster of ... Modulation Facilitating Oral-Squamous-Cell Carcinoma Progression." Tong and a ...
... ... ... ... ...
... link between breathing in dirty air and heart problems ... to the air pollution particles caused by traffic has ... researchers say. , In the new report, researchers analyzed ... who were assessed every four years between 1995 and ...
Cached Medicine News:Health News:Christiana Care Health System Wins National Award for Innovation 2Health News:Christiana Care Health System Wins National Award for Innovation 3Health News:SpiderTech Rides the Night Train to Olympic Gold 2Health News:SpiderTech Rides the Night Train to Olympic Gold 3Health News:SpiderTech Rides the Night Train to Olympic Gold 4Health News:Mt. Everest Summiter Gary Guller (With One Arm) To Race Across Sahara in "The World's Toughest Stage Race" 2Health News:Mt. Everest Summiter Gary Guller (With One Arm) To Race Across Sahara in "The World's Toughest Stage Race" 3Health News:MedCAREERS GROUP, Inc. Reaches Agreement in Principle to Acquire StaffMD 2Health News:MedCAREERS GROUP, Inc. Reaches Agreement in Principle to Acquire StaffMD 3Health News:MedCAREERS GROUP, Inc. Reaches Agreement in Principle to Acquire StaffMD 4Health News:MedCAREERS GROUP, Inc. Reaches Agreement in Principle to Acquire StaffMD 5Health News:Years of Exposure to Traffic Pollution Raises Blood Pressure 2
(Date:9/2/2015)...   Gulf Coast Tattoo Removal is the first and ... Duality laser in Southern Mississippi . Gulf Coast ... and take back control of their skin. The clinic is located ... to Biloxi , Gulfport , ... being as prevalent as it is, I was surprised by the ...
(Date:9/2/2015)... DUBLIN , Sept. 2, 2015 ... the addition of the "An Introduction to ... - November 2-3, 2015)" conference to their ... a comprehensive introduction to the regulations and requirements ... will be highly interactive, using real life examples ...
(Date:9/2/2015)... DUBLIN , Sept. 2, 2015  Research ... addition of the "An Introduction to the ... 2015)" conference to their offering. ... the European medical device legislation. It will explain ... involvement of Notified Bodies, how to choose one ...
Breaking Medicine Technology:Gulf Coast Tattoo Removal Delivers Unrivaled Tattoo Removal Results To Biloxi And Gulfport With Astanza Duality 2An Introduction to Medical Device Software: Regulations and Requirements Course - London, UK - November 2-3, 2015 2
Intermittent catheter...
Intermittent catheter...
Intermittent catheter...
Disease diagnosis and treatment reference sourced from Griffith's 5-Minute Clinical Consult. Save time diagnosing and treating more than 1,200 diseases and conditions....
Medicine Products: