Navigation Links
Female mate choice enhances offspring fitness in an annual herb
Date:6/27/2011

en there was only a few minutes of time lag between their depositions. This was also the case for pollinations that were done with a 24-hour lag between them. However, even in the latter scenario, a surprising proportion of the seeds were still sired by the second donor.

Interestingly, when a mixture of the two donors was applied once, all at the same time, simulating delayed stigma receptivity (because all the pollen start to grow toward the ovules at the same time), there was greater offspring diversity compared to two separate pollination events, one from each donor. In other words, the proportion of offspring sired by each donor was more even in the single pollination event of mixed pollen, rather than being dominated by a single donor.

Moreover, high paternal diversity was also associated with increased seed production, indicating a fitness advantage to delaying stigma receptivity.

"Our results indicate that in our study species the ability to enhance pollen competition between competing mates by delaying stigma receptivity is beneficial because it increases paternal diversity of the brood, which in turn is positively connected to number of seeds produced," Lankinen said. "Even though many studies have shown that enhanced pollen competition can be beneficial for the female reproductive function, the underlying reason for this association is not clear."

Given the benefit of delaying stigma receptivity, Lankinen notes that she and her colleagues "are puzzled by the fact that variation in timing of stigma receptivity is very large in wild populations," and concludes that it would be of interest to understand more about this trait under natural conditions.

Of additional interest is the potential occurrence of a sexual conflict over timing of stigma receptivity. "We have detected that some pollen donors can fertilize ovules ahead of others, presumably securing paternity by avoiding competition with later arrivi
'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert  

Page: 1 2 3

Related medicine news :

1. Has Chinas campaign against female feticide done more harm than good?
2. Undernourishment in pregnant, lactating females found key to next generations disease
3. Supplement found to improve quality of life for female cancer survivors
4. Young females are victims of violent injury
5. Research study reveals profile for female drunk-drivers
6. Gene Variation May Explain Some Female Infertility Cases
7. How materialistic advertising messages negatively shape the female body image
8. UNC study finds oral tongue cancer increasing in young, white females
9. Study: Facebook photo sharing reflects focus on female appearance
10. New educational DVD improves female pelvic exam instruction
11. Biological clock ticks slower for female birds who choose good mates
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Female mate choice enhances offspring fitness in an annual herb
(Date:10/22/2014)... Los Angeles, California (PRWEB) October 22, 2014 ... Recovery 2.0: Move Beyond Addiction and Upgrade Your Life (Paperback; ... the field of Yoga & Recovery. This book is ... and thrive in a life of recovery. , Recovery ... of the 12 Steps; Recovery 2.0 is a guide for ...
(Date:10/22/2014)... Best Cheap Hosting USA is among ... site has recently announced that iPower ( http://www.best-cheap-hosting-usa.com/go/iPower/ ) ... from around the world. , “iPower is one of ... is providing various kinds of useful products for new ... offering excellent customer service and a number of features ...
(Date:10/22/2014)... Although there are only 24 hours in a day, ... have trouble finding time within their busy schedules for exercise and ... of time to get in shape. Here are five ways you ... , Change Up Your Commute , Consider riding a bike ... exercise into your daily routine. If you must use your car ...
(Date:10/22/2014)... WALTHAM, MA (PRWEB) October 22, 2014 ... developing new solutions for the treatment of bacterial infections, ... J. Sinskey has joined its board of directors. ... Microbiology and Engineering Systems at The Massachusetts Institute of ... the MIT faculty since 1968. Dr. Sinskey also holds ...
(Date:10/22/2014)... -- Two sisters in high school have developed ways ... Medha Krishen use electronic stethoscopes, which electronically amplify body ... patterns or heartbeats. Ilina, a senior at Port ... a way to detect early lung damage in people ... Ilina recorded one breath cycle each from 16 smokers, ...
Breaking Medicine News(10 mins):Health News:Hay House Announces The Official Release of Recovery 2.0: Move Beyond Addiction and Upgrade Your Life 2Health News:Hay House Announces The Official Release of Recovery 2.0: Move Beyond Addiction and Upgrade Your Life 3Health News:Best Cheap Hosting USA Has Recently Announced The Best Cheap Web Hosting Companies In 2014 2Health News:HealthGuideMD Presents Ways to Improve Your Exercise and Fitness 2Health News:Akeso Biomedical Appoints Dr. Anthony J. Sinskey to Board of Directors 2Health News:Teen Sisters Develop Ways to Measure Lung, Heart Damage 2
... risk of post-traumatic stress, study finds, , , THURSDAY, ... children in pediatric intensive care units experience delusions, and ... of developing post-traumatic stress syndrome after their hospital stay. ... to be sedated for more than two days, and ...
... Palomid 529 as an inhibitor of macular degeneration, diabetic ... ... Mass., May 1 Paloma Pharmaceuticals,Inc. today announced it has ... for Research in Vision and Ophthalmology (ARVO),describing the activity of ...
... CONSHOHOCKEN, Pa., May 1 Cadient Group, the,premier ... today it has appointed Barbara Dowling as Senior ... the healthcare,vertical on both the client and agency ... digital channel to address business critical,issues. In this ...
... 1 /PRNewswire-FirstCall/ - Labopharm Inc. (TSX: DDS;,NASDAQ: DDSS) today ... 2008 results conference call and Annual Meeting of Shareholders., ... May 8 at 8:30 a.m. (ET) Labopharm will host ... results. Labopharm will,report its first quarter 2008 financial results ...
... N.Y., May 1 Gentiva Health,Services, Inc. (Nasdaq: GTIV ... reported the following financial,results for the first quarter ended March ... ), -- Net revenues increased 8% to $323.7 million ... 1, 2007. -- Net income increased 13% to $7.7 ...
... three children admitted to pediatric intensive care will experience ... for post-traumatic stress symptoms, according to a new study ... (PICU). , The study, which appears in the ... Respiratory and Critical Care Medicine, published by the American ...
Cached Medicine News:Health News:Delusions Common in Pediatric ICU 2Health News:Delusions Common in Pediatric ICU 3Health News:Paloma Pharmaceuticals Presents at the Association for Research in Vision and Ophthalmology Meeting 2Health News:Paloma Pharmaceuticals Presents at the Association for Research in Vision and Ophthalmology Meeting 3Health News:Paloma Pharmaceuticals Presents at the Association for Research in Vision and Ophthalmology Meeting 4Health News:Cadient Group Appoints Barbara Dowling to Senior Vice President Customer Engagements 2Health News:Labopharm announces details for first quarter results conference call and annual meeting 2Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 2Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 3Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 4Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 5Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 6Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 7Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 8Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 9Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 10Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 11Health News:Gentiva(R) Health Services Announces First Quarter 2008 Results and Reaffirms Financial Outlook 12Health News:Haunted by hallucinations: Children in the PICU traumatized by delusions 2
(Date:10/22/2014)... 22, 2014 Antigen Discovery Inc. (ADi), a ... , announced the receipt of a National Institutes of ... from the National Institute of Dental and Craniofacial Research (NIDCR). ... a Pan-HIV Protein Microarray Chip, which will contain every ... and aid in the development of safe and effective ...
(Date:10/22/2014)... 22, 2014   Reproductive Medicine Associates of ... the field of infertility, presents new clinical research ... The research abstract, released during the 70 th ... meeting in Honolulu, Hawaii , ... defect (SGD) pre-implantation genetic diagnosis (PGD). ...
(Date:10/22/2014)... Oct. 22, 2014  Paper Pak Industries, a ... APLS ® Body Guard Bio, a disposable, ... of bacteria and virus while protecting service providers ... Bio features a rugged, external nylon shell, watertight ... a leak-proof inner chamber that contains contaminated and ...
Breaking Medicine Technology:Biomarker Discovery Company, Antigen Discovery Inc., Awarded an NIH Phase I Small Business Innovation Research Grant to Develop a Pan-HIV Protein Microarray Chip 2New IVF Research Highlights Improved Genetic Screening Approach To Help Parents Have Healthier Babies 2New IVF Research Highlights Improved Genetic Screening Approach To Help Parents Have Healthier Babies 3New, State-Of-The-Art Body Bag Minimizes The Spread Of Bacteria And Virus 2
... New Studies Highlight Potential Benefit of Unique ... -- Stimulant drug abuse,remains an ongoing concern ... treat Attention Deficit Hyperactivity Disorder,(ADHD). Data presented ... of,the American Psychiatric Association highlighted findings that,long-acting ...
... Austria, May 23, 2007-The chemotherapy drug,docetaxel currently offers ... the result of a now,published clinical trial that ... chemotherapy drugs. When using docetaxel, the risk of,disease ... when using the,next-best chemotherapy drug. , The use ...
Cached Medicine Technology:New Data Suggests Less Abuse-Related Effects For OROS,Methylphenidate 2New Data Suggests Less Abuse-Related Effects For OROS,Methylphenidate 3New Data Suggests Less Abuse-Related Effects For OROS,Methylphenidate 4New Data Suggests Less Abuse-Related Effects For OROS,Methylphenidate 5Prostate Cancer: Clinical Study Demonstrates Superior Efficacy of,Docetaxel Chemotherapy 2Prostate Cancer: Clinical Study Demonstrates Superior Efficacy of,Docetaxel Chemotherapy 3
... Avaulta™ BioSynthetic Mesh is ... coated in the central ... hydrophilic film of porcine ... of the Avaulta™ BioSynthetic ...
Comprised of a monofilament polypropylene mesh coated with hydrophilic porcine collagen, Pelvitex™ mesh is clinically proven coating to enhance the healing process, along with the strength and d...
... is a soft monofilament ... be used for a ... procedures, including cystocele, rectocele, ... yet strong, POPmeshs flexibility ...
... Hydrix XM is a ... pericardium, a material known for ... sourcing and manufacturing procedures ensure ... safety. Caldera's patented processing enhances ...
Medicine Products: