Navigation Links
To prevent inbreeding, flowering plants have evolved multiple genes, research reveals
Date:11/4/2010

ence of co-evolution, which was surprising as the male and female genes directly involved in controlling self/non-self recognition during sexual reproduction are expected to have co-evolved." Kao said. "In fact, Type-1 SLF has a much shorter evolutionary history than S-RNase." Meanwhile, Kao and his team noticed that "Type-1 SLF had a much lower allelic sequence diversity when compared to S-RNase, raising a question as to how, with limited allelic diversity, the allelic variants of Type-1 SLF proteins can recognize a large repertoire of 40 or more highly divergent S-RNase proteins," he said. "We were puzzled by how the Type-1 SLF gene seemed to have such a young evolutionary history, and how the allelic variants of Type-1 SLF protein seemed to have such a low sequence diversity. We knew that the male and female genetic counterparts had to have kept up with each other throughout evolution -- they had to have co-evolved -- so that meant there had to be older and more numerous SLF genes controlling the male side of the equation."

NEW DISCOVERIES

Now, in the soon-to-be-published Science paper, the team will announce its identification of five additional types of SLF genes -- named Type-2 to Type-6 SLF genes -- found in the same chromosomal region as the Type-1 SLF gene. Kao and his colleagues found that while the Type-1 SLF gene certainly played an important role in preventing inbreeding, Type-2 and Type-3, and most likely additional types of SLF genes, also controlled self-incompatibility. "Each Type-1 SLF protein can recognize only a limited number of non-self S-RNase components," Kao said. "Meanwhile, each of the additional types of SLF proteins we've found can recognize different sets of non-self S-RNase proteins, and all of them collectively account for the entire suite of non-self identification. This recent finding has solved the puzzle about the co-evolution between the male and female genes, and how a single type of SLF protein has th
'/>"/>

Contact: Barbara Kennedy
science@psu.edu
814-863-4682
Penn State
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Duke team finds compounds that prevent nerve damage
2. Kazak apple research key to preventing blue mold
3. H. Pylori bacteria may help prevent some esophageal cancers
4. AACR hosts Frontiers in Cancer Prevention Research meeting
5. JDRF funded study links hygiene hypothesis to diabetes prevention
6. Anti-cancer drug prevents, reverses cardiovascular damage in mouse model of premature aging disorder
7. Statins may prevent miscarriages
8. Farmers can spot lame sheep, but fail to prevent footrot spread
9. Resveratrol prevents fat accumulation in livers of alcoholic mice
10. Scientists from Granada find a potential treatment to prevent diabetes and obesity
11. Meyskens honored with AACR-Prevent Cancer Foundation award
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
To prevent inbreeding, flowering plants have evolved multiple genes, research reveals
(Date:9/30/2014)... German . ... risky situations such as exposure to predators. Researchers from ... a long-term study on different populations of great tits ... ambient temperature. High metabolic rates and low temperatures were ... birds were more likely to approach potential predators. , ...
(Date:9/30/2014)... of perilous threats in today,s ocean. From overfishing ... fragile coral ecosystems are disappearing at unprecedented rates ... of corals surrounding the island of Moorea in ... tropical environment: coral guard-crabs. New research from the ... scientist Seabird McKeon and the museum,s predoctoral fellow ...
(Date:9/30/2014)... 30, 2014 Winners of The Economist,s prestigious ... scheduled to take place at the JW Marriott Hong Kong on ... winners will share their experiences and the lessons those hold for ... proven innovation over the past decade, will be presented at a ... the summit. It will be the first time the ceremony has ...
Breaking Biology News(10 mins):Risky metabolism 2Smithsonian scientists discover coral's best defender against an army of sea stars 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 2Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 3Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 4Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 5Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 6Hear from The Economist's 2014 Innovation Award Winners at Innovation Summit on October 10th in Hong Kong 7
... plants battle for space, often the actual battle is for ... Nebraska-Lincoln gives important new information on how plants can change ... species to invade and take over native plants. In ... Proceedings of the National Academy of Sciences , UNL biologist ...
... LAFAYETTE, Ind. - Catching adult eagles for research purposes is ... a way around the problem, and, in the process, gathered ... hand on one. "Many birds are small, easy to ... and natural resources. "With eagles, the effort can be 100 ...
... CSIRO science is being used to improve land management ... nutrients and pesticides on to the Great Barrier Reef. ... CSIRO, Australian Government Reef Rescue team and the Bureau ... how it allocates more than $50 million between reef ...
Cached Biology News:Nitrogen research shows how some plants invade, take over others 2Scientists are learning more about big birds from feathers 2Investing wisely to save the Great Barrier Reef 2
(Date:9/30/2014)... available in German . ... Mnchen (TUM) have demonstrated a new kind of building ... future computer chips could be based on three-dimensional arrangements ... enabling technology of the semiconductor industry CMOS fabrication ... researchers and collaborators at the University of Notre Dame ...
(Date:9/30/2014)... Sept. 30, 2014 Pacific Northwest Biotechnology, ... Summary Global Markets Direct,s, ,Pacific Northwest Biotechnology, ... an overview of the Pacific Northwest Biotechnology, LLC,s ... provides comprehensive information on the current therapeutic developmental ... comparative analysis at various stages, therapeutics assessment by ...
(Date:9/30/2014)... Shimadzu Scientific Instruments has released the ... precise tool for measuring displacement in rubber and ... maximum movement distance, the DSES-1000 can measure elongations ... of 10 mm. In addition, it achieves +/- ... and within +/- 100 µm below 50-mm stroke. ...
(Date:9/30/2014)... 30, 2014 Over the last decade, ... to rising R&D budgets and increased acceptance of new ... pharmaceutical and biotechnology industries are also catalyzing the growth ... market is expected to grow at a strong CAGR ... to be worth $2,532.6 million by 2019. The market ...
Breaking Biology Technology:A new dimension for integrated circuits: 3-D nanomagnetic logic 2A new dimension for integrated circuits: 3-D nanomagnetic logic 3Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 2Pacific Northwest Biotechnology, LLC - Product Pipeline Review - 2014 3Shimadzu’s New Long-Travel Extensometer Increases Precision for Soft Material Testing 2Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 2Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 3Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 4Global Laboratory Filtration Market To See 7.0% CAGR to 2019 Says a Research Report Available at ReportsnReports.com 5
... SUNNYVALE, Calif., Sept. 26 Cepheid (Nasdaq:,CPHD) will ... Growth Stock,Conference on October 3, 2007 at 10:40 ... York. John R. Sluis, Cepheid,s Chief Financial Officer ... Officer, will provide,a corporate overview. The webcast, ...
... strategic platform for reducing risk of cancer ... drug development, ... ; MTAX) held its 2007 annual shareholders meeting,(Annual Meeting) on Tuesday, September ... a majority of CTI,s shares are,held by Italian shareholders. At the 2007 ...
... BioInformatics, SINGAPORE, Sept. 26 /Xinhua-PRNewswire/ -- ... Ltd, a leader in reconfigurable computing,applications headquartered ... The,BioIT Alliance is a cross-industry group working ... pace of drug discovery and realize the,potential ...
Cached Biology Technology:Cepheid to Present at William Blair Small-Cap Growth Stock Conference 2Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 2Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 3Cell Therapeutics, Inc. (CTI) Announces 2007 Annual Shareholders Meeting Results 4Progeniq Joins Microsoft in Bio IT Alliance 2Progeniq Joins Microsoft in Bio IT Alliance 3
Collected from animals that are 16 to 18 months old. Sterile, Cell culture tested, ID clarifier: USA Origin...
... 20-HETE is a cytochrome P450 (CYP450) metabolite ... the renal and cerebral vasculature. In rat ... mediates pressure-induced autoregulatory vasoconstriction. 20-HETE is excreted ... of free 20-HETE (20-40 pg/ml in human ...
... GPS-M Mutagenesis System enables you to insert ... into,your target DNA by in vitro transposition. ... Tn7-based,transposon randomly into the DNA target. Target ... or purified,chromosomal DNA, depending on your interests ...
A set of five peptides which can be used to calibrate a Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) or Electrospray Ionization (ESI) mass spectrometer....
Biology Products: