Navigation Links
Nightshades' mating habits strike uneasy evolutionary balance
Date:10/21/2010

Most flowering plants, equipped with both male and female sex organs, can fertilize themselves and procreate without the aid of a mate. But this may only present a short-term adaptive benefit, according to a team of researchers led by two University of Illinois at Chicago biologists, who report that long-term evolutionary survival of a species favors flowers that welcome pollen from another plant.

"We've shown that a strong, short-term advantage experienced by individuals that have sex with themselves can be offset by long-term advantages to plant species that strictly avoid self-fertilization," says Boris Igić, UIC assistant professor of biological sciences. The result is "an apparently unending competition between these two reproductive strategies," he said, "contributing to disparities in species diversity observed among different groups of plants."

The findings are reported in the Oct. 22 issue of Science by Igić and lead author Emma Goldberg, postdoctoral research associate in biological sciences.

Their study focused on Solanaceae, the large and diverse plant family commonly known as nightshades. It includes such important crop plants as potatoes, tomatoes and tobacco. Just under half of the known nightshade species cannot self-fertilize.

Goldberg and Igić measured the long-term effects of self-fertilization, which is caused by frequent mutations and is difficult to lose once a plant acquires it. The researchers applied a mathematical model to calculate the rate of accumulation of species, also called the diversification rate.

"We found those species that avoid self-fertilization diversify faster, giving them a long-term advantage," Goldberg said.

"It's a trade-off," Igić added. "The short-term benefits of mating assurance and ability to invade a new environment are pitted against long-term advantages of greater genetic diversity, allowing plants that avoid self-fertili
'/>"/>

Contact: Paul Francuch
francuch@uic.edu
312-996-3457
University of Illinois at Chicago
Source:Eurekalert

Page: 1 2

Related biology news :

1. Whale sharks may produce many litters from 1 mating, paternity test shows
2. Male antelopes deceive females to increase their chances of mating
3. Mystery solved: Facial cancer decimating Tasmanian devils likely began in Schwann cells
4. Loyal alligators display the mating habits of birds
5. Bats use love songs during mating, researchers say
6. Mating that causes injuries
7. Fruit flies sick from mating
8. Mosquitoes create harmonic love song before mating, study finds
9. Doctors health habits affect patient counseling
10. Hidden habits and movements of insect pests revealed by DNA barcoding
11. Discovery of algaes toxic hunting habits could help curb fish kills
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/27/2014)... the human genome was unveiled today in the form ... yet of how the genomes of the fruit fly, ... August 28 in in the journal Nature , ... genomes is "read out," and how their DNA and ... billions of entries to a publicly available archive of ...
(Date:8/27/2014)... University researchers have identified a gene that could help ... a protein in the cell membrane of plants that ... water conservation machinery accordingly. , "It,s similar to ... biology at Duke. , The findings, which appear ... make it easier to feed the world,s growing population ...
(Date:8/27/2014)... when it only requires nerve cells to rearrange existing ... to generate new patterns, a study of monkeys has ... through recordings of electrical activity of brain cell networks. ... of Health. , "We looked into the brain and ... outside the box," said Aaron Batista, Ph.D., an assistant ...
Breaking Biology News(10 mins):Encyclopedia of how genomes function gets much bigger 2Encyclopedia of how genomes function gets much bigger 3Encyclopedia of how genomes function gets much bigger 4Water 'thermostat' could help engineer drought-resistant crops 2Scientists plug into a learning brain 2Scientists plug into a learning brain 3
... countless coral reefs around the world can now be nabbed ... say. Coral researchers and reef managers will be able ... them to classify specific diseases based on the presence of ... reduce the impact of disease on the world,s imperilled coral ...
... Alto, CA--The four largest nonprofit plant science research institutions ... Association of Independent Plant Research Institutes (AIPI) in an ... profound challenges facing society in a more coordinated and ... Thompson Institute for Plant Research (Cornell University), The Carnegie ...
... for athletes looking to boost performance comes in the form ... reason for its popularity is twofold says Scott Forbes, a ... precursor for nitric oxide that is known to improve blood ... nutrients to working muscles and assist with metabolic waste product ...
Cached Biology News:Scientific sleuths pinpoint the guilty coral killers 2Big boost to plant research 2Big boost to plant research 3L-arginine: Supplement tested on fit, athletic men shows no advantage 2L-arginine: Supplement tested on fit, athletic men shows no advantage 3
(Date:8/26/2014)... An analysis by Replikins, Ltd. of Pubmed data of ... virus strains has revealed extensive conservation and sharing of ... sharing of specific Replikin gene structures has permitted the ... did for the H5N1 influenza vaccine and the Taura ... to be effective (1,2). This ...
(Date:8/26/2014)... team of engineers from Singapore has successfully piloted ... for satellite communications. , With the weight of ... constructing a lightweight, low power-consuming, wireless communication system ... has always been a challenge for system designers. ... Centre of Nanyang Technological University in Singapore launched ...
(Date:8/26/2014)... MINNEAPOLIS and REHOVOT, Israel , ... UK medical 3D printing specialist, Replica 3DM, supports NHS hospitals ... 3D Printers   - Performing surgery ... and anesthetic times; improves patient recovery and provides an effective ... Stratasys Ltd. (Nasdaq: SSYS ), a ...
(Date:8/26/2014)... , Aug. 26, 2014  ViveBio, LLC a ... collection, stabilization and transportation, announced today that it ... Services, LLC (LPS) of Knoxville, Tennessee ... in the United States . ... of ambient temperature dried biological specimen transport systems.  ...
Breaking Biology Technology:ZigBee in the Sky 2Twelve UK Hospitals Enjoy Reduced Surgical Procedure Times and Decline in Costs by Implementing Stratasys 3D Printing Solutions 2Twelve UK Hospitals Enjoy Reduced Surgical Procedure Times and Decline in Costs by Implementing Stratasys 3D Printing Solutions 3Twelve UK Hospitals Enjoy Reduced Surgical Procedure Times and Decline in Costs by Implementing Stratasys 3D Printing Solutions 4Twelve UK Hospitals Enjoy Reduced Surgical Procedure Times and Decline in Costs by Implementing Stratasys 3D Printing Solutions 5ViveBio and Laboratory Procurement Services Sign Agreement for Distribution of the ViveST Line of Products 2
... XTL,Biopharmaceuticals Ltd. (Nasdaq: XTLB ; TASE: XTL) today ... XTL,s Board of Directors.,The appointment, effective immediately, increases the ... 61, recently retired from his position as a Partner ... and,advisory services firm, having served that firm for over ...
... Today sees the launch of a new collaborative website ... and medicine. The WikiProfessional technology underlying the site has ... in BioMed Centrals open access journal Genome Biology, WikiProteins ... scale. , The article is written by Barend ...
... Researchers at North Carolina State University have created a ... which retains these properties under extremely high temperatures ... applications, such as engine components that are exposed to ... is made up of nanoscale crystals is far stronger ...
Cached Biology Technology:XTL Biopharmaceuticals Announces Appointment of Laurence N. Charney to Board of Directors 2XTL Biopharmaceuticals Announces Appointment of Laurence N. Charney to Board of Directors 3Large-scale community protein annotation -- WikiProteins 2
... fast and specific detection of chromosomal sequences ... hybridisation time ( Works ... Multiplex capability Available with different tags ... available with different labels. Related Content: ...
... rat adult and fetal tissue, ... * T75 plated cells $750.00, ... This product requires Celprogen Stem ... and extracellular matrix, * E55007-08-T25 ...
... Bacterial DNA Isolation Kit provides a rapid ... genomic DNA from the various bacterial species ... the isolation of genomic DNA from both ... milk samples. ,Purification is based on ...
...
Biology Products: