Navigation Links
Fit females make more daughters, mighty males get grandsons
Date:1/9/2012

Females influence the gender of their offspring so they inherit either their mother's or grandfather's qualities. 'High-quality' females those which produce more offspring are more likely to have daughters. Weaker females, whose own fathers were stronger and more successful, produce more sons.

The study, by scientists at the University of Exeter (UK), Okayama University and Kyushu University (Japan), is published today (9 January) in the journal Ecology Letters. It shows for the first time that females are able to manipulate the sex of their offspring to compensate for the fact that some of the genes which make a good male make a bad female and vice versa.

The research focuses on the broad-horned flour beetle, Gnatocerus cornutus, but the team believes the findings could apply to other species across the animal kingdom, even mammals.

Male flour beetles with large jaws have the most mating success and win the most fights, so are seen as 'high quality'. However, the muscles and body shape needed to carry the massive jaws mean that large-jawed males father daughters with a more masculine body-shape, less adept at carrying eggs. This means that these successful males father daughters who produce fewer offspring.

Poor-quality females produce more sons who inherit their grandfather's good qualities. Conversely, high-quality daughters, fathered by poor males, produce relatively small-jawed and weak sons, and compensate by producing more female offspring that will inherit their mother's good attributes.

Corresponding author Dr David Hosken of the University of Exeter said: "Our study shows females are able to bias the sex ratio of their offspring in surprising and subtle ways. These findings shed new light on why some families have lots of sons, while others have mainly daughters. Of course everyone will be interested to know if the study can help explain why this sometimes happens in human families but I
'/>"/>

Contact: Sarah Hoyle
s.hoyle@exeter.ac.uk
44-139-272-2062
University of Exeter
Source:Eurekalert

Page: 1 2

Related biology news :

1. Females choose sexier friends to avoid harassment
2. Pitt team finds molecular evidence of brain changes in depressed females
3. Headaches are common in year following traumatic brain injury, especially among females
4. Females can place limits on evolution of attractive features in males, research shows
5. Avian Axe effect attracts attention of females and males
6. Competition between females leads to infanticide in some primates
7. In fireflies, flightless females lose out on gifts from males
8. Differences in brain development between males and females may hold clues to mental health disorders
9. Male antelopes trick females into extra sex opportunities
10. Male antelopes deceive females to increase their chances of mating
11. Females shut down male-male sperm competition in leafcutter ants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... 2014 You,ve been here before: you desperately need ... your password, site key or the answer to your secret ... teacher? Today, Hoyos Labs , a ... will finally put an end to the frustration that comes ... . 1U leverages a user,s smartphone to acquire his or ...
(Date:12/10/2014)... , December 9, 2014 ... BCARD Platform   ... meeting scheduling solutions for business-to-business (B2B) events, today ... leader in mobile near-field communication (NFC), Bluetooth low ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will ...
(Date:12/3/2014)... 2014 As part of our commitment to ... pleased to announce the release of a new reader ... the workforce data that they need. The ... by existing readers. Many such devices have serious shortcomings ... technology. Older models force users to navigate numerous complicated ...
Breaking Biology News(10 mins):The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3Inception Technologies to Release New Biometric Reader 2
... enzyme Akt1 could provide the key to boosting the ... dendritic cells, the immune-system master switches that promote the ... Baylor College of Medicine in a report that appears ... issue of the journal Nature Biotechnology. , "By keeping ...
... de Investigaciones Científicas (CSIC) has discovered a new route ... discovery that will enable the biotechnological design of plant ... produce oral vaccines which, upon being ingested, will be ... the door to the design of protein-manufacturing plants of ...
... Bioinformatics Institute and Duke University Medical Center have ... an important role in the development and virulence ... fungal pathogen that causes black spot disease on ... leaf loss in many economically important crops including ...
Cached Biology News:'Super' enzyme may lead way to better tumor vaccines 2Vaccine-producing 'plant-factories' 2Tearing down the fungal cell wall 2Tearing down the fungal cell wall 3
(Date:12/22/2014)... (PRWEB) December 22, 2014 Fertility Associates ... Donor Egg Bank USA , a network of more ... Through this partnership, patients have fast access to a ... vitro fertilization, IVF . Fertility Associates of Memphis is ... this fertility treatment option. , Dr. William Kutteh ...
(Date:12/19/2014)... December 19, 2014 Charm Sciences is ... for the Detection of Aflatoxin M1 in raw commingled ... independent third party validation. The peer reviewed report of ... the Institute for Agricultural and Fisheries Research (ILVO-T&V) has ... , Aflatoxin B1, the most toxic aflatoxin and a ...
(Date:12/19/2014)... Naurex Inc., a biopharmaceutical company leveraging its ... the central nervous system, today announced that Norbert ... present at the 33 rd annual J.P. Morgan ... 3:00 p.m. PST on Tuesday, January 13, 2015, at ... Calif. About Naurex Inc. ...
(Date:12/19/2014)... REDWOOD CITY, Calif. , Dec. 19, 2014 ... , USA) announced today that they have been ... Technologies 1,2 is a privately held company that ... processing of next generation sequencing (NGS) data for the ... into the Roche Sequencing Unit, and will continue to ...
Breaking Biology Technology:Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... to tight integration and ... excellent value, ... a,leader in radiology and medical image and information management solutions,today announced ... 100 facilities that use MEDITECH(TM) as their health,information system. AMICAS will ...
... May 27 /Xinhua-PRNewswire/ -- Sinovac Biotech Ltd. (Amex:,SVA), ... announced that the,Ministry of Health has purchased approximately ... hepatitis A vaccine, Healive(R), to,vaccinate people living in ... has delivered shipments of the Healive vaccine to,Sichuan, ...
... Calif., May 27 Epitomics, Inc., the rabbit,monoclonal ... its,1000th new rabbit monoclonal antibody. Each antibody has ... proprietary rabbit monoclonal,antibody technology. "We are very excited ... of time. This demonstrated the robustness of our ...
Cached Biology Technology:AMICAS Announces Integrations at More Than 100 MEDITECH Facilities 2AMICAS Announces Integrations at More Than 100 MEDITECH Facilities 3Sinovac Receives RMB 20 Million Purchase Order for Healive from China's Ministry of Health to Vaccinate Earthquake Victims 2Epitomics Announces the Creation of 1000th Rabbit Monoclonal Antibody 2
... Disrupts biological cells for DNA ... 96 well plates (includes 96 well ... consistent lysis across the entire plate ... wells). Can be used for ...
Rat polyclonal to acetyl Salicylic Acid ( Abpromise for all tested applications)....
Rabbit polyclonal to UBC12 (rating: ****) ( Abpromise for all tested applications). Antigen: Synthetic peptide: RGGYIGSTYFER, corresponding to amino acids 169-180 of UBC12 Entrez Gene ID: 90...
...
Biology Products: