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

In many organisms females directly or indirectly select mates (or sperm) and potentially influence the fitness of their offspring. Mate choice and sexual selection in plants is more complex in some ways than in animals because plants are sessile organisms and often have to rely on external vectors, such as animals, for pollen transport. As such, there is only so much a plant can do to affect the timing of pollen arrival, or the size and diversity of deposited pollen. But can a plant control which pollen grains, of the hundreds that land on their stigmas, make it to the ovules?

sa Lankinen from the Swedish University of Agricultural Sciences, whose research focuses on mate choice and sexual selection in plants, teamed up with Josefin Madjidian from Lund University, Sweden, to see if they could determine whether a mechanism that plants may use to exert female choice was delayed stigma receptivity in the pistil (the female part of the flower). Delaying receptivity to pollen grains may affect aspects of pollen competition such as siring ability, paternal diversity, and offspring fitness. Their study can be found online in the July issue of the American Journal of Botany (http://www.amjbot.org/content/early/2011/06/15/ajb.1000510.full.pdf+html).

"Our study contributes to our general understanding of how and why plants choose their mates when pollen arrive repeatedly to the stigma over a period of time," said Lankinen.

Lankinen and Madjidian hand-pollinated flowers of an annual herb, Collinsia heterophylla (Plataginaceae), in a controlled greenhouse setting in a series of crosses that simulated delayed stigma receptivity.

The authors found that when stigmas were receptive, pollination arrival sequence was important: pollen from the donor that was applied first sired more offspring (up to 74%) than the second donor, even wh
'/>"/>

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:8/1/2014)... 2014 Stress management can be difficult in ... of concentration and diminish rest and leisure time, stress can ... critical to find a way to manage stress in order ... , “Having a good sense of work-life balance is the ... founding clinician of SF Custom Chiropractic. “Stress, left unchecked, ...
(Date:8/1/2014)... Register to join the webinar here: http://bit.ly/1lPZNI9 . ... record for life sciences investing. IPOs in the sector tripled ... all venture dollars spent in 2013. The result: biotech companies ... However, 2014 is proving more of a mixed bag of ... while life sciences IPOs are losing steam, M&A is expected ...
(Date:7/31/2014)... (PRWEB) July 31, 2014 Just in ... Duke’s Chowder House is featuring new summertime drink ... all six Duke’s locations throughout the season. ... guests alike, Duke’s award-winning, customer-nominated Seattle’s best happy hour ... To celebrate its Lake Union location’s 25th anniversary this ...
(Date:7/31/2014)... San Francisco, California (PRWEB) July 31, 2014 ... 1960s Grateful Dead Psychedelic Acid Test concert posters. Owsley ... bolt skull logo for the Grateful Dead. According to ... Ken Kesey to promote acid test parties in San ... test posters were printed on three different colors of ...
(Date:7/31/2014)... 2014) If you have asthma, you may have an ... you recognize and respond to changes and understand when symptoms ... the green zone, you,re doing well, yellow means your asthma ... require urgent care. New guidelines are now available to help ... into green and away from the red zone. , "Management ...
Breaking Medicine News(10 mins):Health News:SF Custom Chiropractic Celebrates National Relaxation Day and the Benefits of Massage Therapy for the Month of August 2Health News:Register to Join the Merrill DataSite's Webinar - Built to Sell: The Life Sciences Deal Climate 2Health News:Register to Join the Merrill DataSite's Webinar - Built to Sell: The Life Sciences Deal Climate 3Health News:Seattle Seafood Restaurant Lake Union Duke's Chowder House Celebrating its 25th Anniversary, Still a Best Outdoor Deck Spot to Sip Up Cocktails in Record-Breaking Heat. 2Health News:Seattle Seafood Restaurant Lake Union Duke's Chowder House Celebrating its 25th Anniversary, Still a Best Outdoor Deck Spot to Sip Up Cocktails in Record-Breaking Heat. 3
... effective, a new review of studies has found. Not ... depression and health-related quality of life, they also reduce ... analysis was both more inclusive and more conservative than ... that these interventions are helpful,” said psychologist and review ...
... last year, Soraya Kohanzadeh, 30, Muir Beach, CA, was ... and expecting to live a shortened life// dependent on ... her “anti-donor” antibody levels were so high, her doctors ... ever. However, thanks to a specialized type of anti-rejection ...
... Merck and Co., hopes to offer Gardasil, to developing countries ... the only vaccine against Human Papilloma Virus, that is insinuated ... Statistics reveal that cervical cancer is rampant in developing countries.80% ... in developing nations. ,A single dose of Gardasil ...
... method to identify deposits in brain seen in people ... this disorder suffer mostly in their cognitive abilities and ... be able to distinguish people who may develop Alzheimer's ... extent .Nearly 5 million people in the USA are ...
... Medicine have pinpointed a key regulatory protein that translates ... in a model of mouse embryonic development a transcription ... blood vessels, is activated by rapid, pulsed blood flow, ... Understanding Klf2’s role in blood vessel and muscle biology ...
... their collaborators are gaining widespread attention for discoveries involving ... to AIDS patients. Their findings about Toxoplasma gondii and ... Nature published a paper Wednesday, Dec. 20, in its ... 15 and PLoS Pathogens on Oct. 27. ...
Cached Medicine News:Health News:Psychological Treatments Improve Outcomes for Back Pain Sufferers 2Health News:Psychological Treatments Improve Outcomes for Back Pain Sufferers 3Health News:Therapy Modulates Highly Sensitized Immune System to Let Mother Give Kidney to Daughter 2Health News:Therapy Modulates Highly Sensitized Immune System to Let Mother Give Kidney to Daughter 3Health News:Therapy Modulates Highly Sensitized Immune System to Let Mother Give Kidney to Daughter 4Health News:Novel Brain Scan to Diagnose Alzheimer's Disease 2Health News:Novel Brain Scan to Diagnose Alzheimer's Disease 3Health News:How Blood Flow Dictates Gene Expression 2Health News:New Findings on Toxoplasmosis 2Health News:New Findings on Toxoplasmosis 3
(Date:7/31/2014)... -- The Galien Foundation today announced the 2014 nominees ... Awards. The Prix Galien Award is considered ... scientific and clinical research skills necessary to develop innovative ... highest number of nominees since the inception of the ... biomedical products across three categories – biotechnology, pharmaceutical, and ...
(Date:7/31/2014)... Cryoport, Inc. (OTCBB: CYRX) today announced financial results for ... Recent Operating Highlights , Achieved 92% ... period ended June 30, 2014 compared to the prior ... expand Cryoport,s global reach using the ,powered by Cryoport ... an immunotherapy and vaccine development services company, to support ...
(Date:7/31/2014)... , July 31, 2014  Genomic Health, Inc. (Nasdaq: ... a conference call and webcast on Thursday, August 7 at ... financial results.  The call and webcast will follow the release ... Conference Call Details To access the live conference call ... please dial (877) 303-7208 from the United States ...
Breaking Medicine Technology:The Galien Foundation Announces 2014 Prix Galien USA Nominees for "Best Biotechnology Product," "Best Pharmaceutical Agent," and "Best Medical Technology" 2The Galien Foundation Announces 2014 Prix Galien USA Nominees for "Best Biotechnology Product," "Best Pharmaceutical Agent," and "Best Medical Technology" 3The Galien Foundation Announces 2014 Prix Galien USA Nominees for "Best Biotechnology Product," "Best Pharmaceutical Agent," and "Best Medical Technology" 4The Galien Foundation Announces 2014 Prix Galien USA Nominees for "Best Biotechnology Product," "Best Pharmaceutical Agent," and "Best Medical Technology" 5Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 2Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 3Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 4Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 5Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 6Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 7Cryoport Reports 92% Revenue Growth for First Quarter of Fiscal 2015 8Genomic Health to Announce Second Quarter 2014 Financial Results and Host Conference Call on Thursday, August 7, 2014 2Genomic Health to Announce Second Quarter 2014 Financial Results and Host Conference Call on Thursday, August 7, 2014 3Genomic Health to Announce Second Quarter 2014 Financial Results and Host Conference Call on Thursday, August 7, 2014 4
... Report Issued to Improve Policies Affecting How Human ... At the same time,that medical science is making ... once fatal diseases, a new report finds major,shortcomings ... out and,funded in the U.S. with serious implications ...
... Belgium, April 1 , - Trial Results Expected ... company,focused on vascular diseases, eye diseases and cancer, today ... IIb MIVI III trial in the,United States. This study ... in vitrectomy (MIVI III - Microplasmin for Vitreous,Injection)., ...
Cached Medicine Technology:Major Deficiencies in Design; Funding of Clinical Trials Affects Future of Scientific Innovation 2Major Deficiencies in Design; Funding of Clinical Trials Affects Future of Scientific Innovation 3Major Deficiencies in Design; Funding of Clinical Trials Affects Future of Scientific Innovation 4Major Deficiencies in Design; Funding of Clinical Trials Affects Future of Scientific Innovation 5Major Deficiencies in Design; Funding of Clinical Trials Affects Future of Scientific Innovation 6Major Deficiencies in Design; Funding of Clinical Trials Affects Future of Scientific Innovation 7ThromboGenics Completes Patient Enrolment in the Phase IIb Trial of Microplasmin in Vitrectomy (MIVI III) 2ThromboGenics Completes Patient Enrolment in the Phase IIb Trial of Microplasmin in Vitrectomy (MIVI III) 3ThromboGenics Completes Patient Enrolment in the Phase IIb Trial of Microplasmin in Vitrectomy (MIVI III) 4
... is a leading provider of immunofluorescence assays, ... menu that includes kits for autoimmune diseases, ... miscellaneous conjugates and components. Our Impact IFA ... of substrates and kit sizes to choose ...
... Diagnostics is a leading provider of immunofluorescence ... test menu that includes kits for autoimmune ... as miscellaneous conjugates and components. Our Impact ... assortment of substrates and kit sizes to ...
... Diagnostics is a leading provider of immunofluorescence ... test menu that includes kits for autoimmune ... as miscellaneous conjugates and components. Our Impact ... assortment of substrates and kit sizes to ...
... Inverness Medical Professional Diagnostics is a leading ... IFA and DFA test menu that includes ... STDs as well as miscellaneous conjugates and ... you a wide assortment of substrates and ...
Medicine Products: