Navigation Links
Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

Researchers from the Floral Genome Project at Penn State University, with an international team of collaborators, have proposed an answer to Charles Darwin's "abominable mystery:" the inexplicably rapid evolution of flowering plants immediately after their first appearance some 140 million years ago. By developing new statistical methods to analyze incomplete DNA sequences from thirteen strategically selected plant species, the researchers uncovered a previously hidden "paleopolyploidy" event, an ancient whole-genome duplication that preceded the appearance of the ancestral flowering plant. The results will appear in the June issue of Genome Research.

Claude dePamphilis, associate professor of biology at Penn State, is the principal investigator of the Floral Genome Project and the senior author of the paper. "We found a concentration of duplicated genes that suggests a whole-genome duplication event in the earliest flowering plants," he says. "A polyploidy event early in the history of flowering plants could explain their sudden evolution."

One unexpected observation from the study is the relatively slow accumulation of mutations in primitive flowering plants like the yellow water lily (Nuphar). "We can view these basal angiosperms like the Hubble Space Telescope, which helps us get a deeper look into the early history of the universe--these plants allow us to take a deeper look into genomic history."

Darwin noticed that flowering plants appear suddenly in the fossil record and then radiate quite rapidly. Technically known as angiosperms, "flowering plants exhibit a number of evolutionary innovations that appeared rapidly, including novel structures like carpels and primitive petals and sepals, the sine qua non of flowering plants," dePamphilis says. Angiosperms also boast plenty of unique biochemistry. "They're a rich source of medicinal compounds. Even the kind of wood they make is special."

The new results support the id
'"/>

Source:Penn State


Page: 1 2 3 4

Related biology news :

1. Massive coral death attributed to earthquake
2. Analysis of flower genes reveals the fate of an ancient gene duplication
3. Newly-discovered class of genes determines ?and restricts ?stem cell fate
4. Inexpensive, mass-produced genes core of synthetic biology advances at UH
5. First atlas of key brain genes could speed research on cancer, neurological diseases
6. U-M scientists find genes that control growth of common skin cancer
7. Researchers find missing genes of ancient organism
8. Scientists document complex genomic events leading to the birth of new genes
9. Genrate: a generative model that finds and scores new genes and exons in genomic microarray data
10. Advances in the characterisation of the oyster mushroom genes
11. Researchers find new genes necessary to make embryo
Post Your Comments:
(Date:7/24/2014)... Imagine a smog-free Los Angeles, where electric cars ply ... run on heat from beneath the earth, from howling ... new Stanford study finds that it is technically and ... one powered by clean, renewable energy. Published in ... sustainable, inexpensive and reliable energy supply in California that ...
(Date:7/24/2014)... meaning the microbial populations found on surfaces in the ... final flavor according to research published ahead of print ... This is the first time investigators have taken a ... sake makers inoculate with both bacteria and yeast, says ... California, Davis, but he and his colleagues investigated a ...
(Date:7/24/2014)... at The University of Texas Health Science Center at ... to help Harris County residents whose vision problems cannot ... with corrective lenses, many people with low vision can ... of low vision devices, such as telescopes, magnifiers and ... Iyer is using the three-year, $164,645 SightFirst grant from ...
Breaking Biology News(10 mins):Stanford study shows how to power California with wind, water and sun 2Stanford study shows how to power California with wind, water and sun 3Stanford study shows how to power California with wind, water and sun 4The microbes make the sake brewery 2UTHealth Dr. Bhavani Iyer awarded low vision grant 2
... coastal salt marshes affected by the BP Deepwater Horizon ... to oil exposure, but also resilient enough to recover within ... a study published Mar. 7 in the open access journal ... McCall and her advisor Steven Pennings at the University of ...
... 7, 2012) Scientists conducting deep-sea research in the Galapagos ... the March 5 issue of the journal Zootaxa. The ... chocolate-brown coloration with pale, irregularly distributed spots on its body. ... each individual. John McCosker of the California Academy of ...
... an area equivalent to 5 times the size of Germany, ... forest. The ,State of the Congo Basin Forests 2010, report ... Congo Basin Forest Partnership (CBFP), provides a comprehensive and detailed ... regulation and natural resources. It looks at deforestation patterns, points ...
Cached Biology News:New species of deep-sea catshark described from the Galapagos 2EU-funded study underlines importance of Congo Basin for global climate and biodiversity 2
(Date:7/25/2014)... AVIV, Israel , July 25, 2014  Galmed ... clinical-stage biopharmaceutical company focused on the development and commercialization ... liver diseases and cholesterol gallstones, today announced financial results ... First Half 2014 Financial Summary: , Reported cash ... 2014, compared with $137,000 at December 31, 2013.  ...
(Date:7/25/2014)... Sinovac Biotech Ltd. (Nasdaq: SVA ), a leading ... today announced that it will release its unaudited financial results ... close on Thursday, August 14, 2014 EDT. The Company will ... Friday, August 15, 2014, at 8:00 a.m. EDT (Friday, August ... the Company,s financial results and provide an update on recent ...
(Date:7/24/2014)... CA (PRWEB) July 24, 2014 ... the Global Supply Chain of the biotech industry. ... SCM Innovation Awards, brought to you by the ... global organization of supply chain management professionals for ... given to stakeholders of the Biotech industry – ...
(Date:7/24/2014)... 2014  ECC West Africa, LLC (ECC) signed a ... University College Hospital (UCH) Ibadan Board of Management for ... design, construct, and operate and maintain a new, state-of-the-art ... Under the first of the 4-phase project, ECC will ... applications. UCH Ibadan intends to finance and develop the ...
Breaking Biology Technology:Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6Sinovac to Host Conference Call to Report Second Quarter 2014 Unaudited Financial Results 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 3ECC Signs a Contract for the Finance, Design, and Construction of a Premier Cancer Institute in Ibadan, Nigeria 2
Immunogen GST fusion protein corresponding to full-length rat JNK3/ SAPK1b. Quality Assurance Routinely evaluated by immunoblot. Stability 2 years at -20°C from date of shipment GenBank A...
... The ProteoExtract™ Protein Precipitation Kit is ... of proteins from aqueous samples. Proteomics ... the presence of non-protein impurities such ... the protein sample that interfere with ...
... provides the sensitivity and versatility you expect ... photon counting with selected photomultipliers ensure superior ... Equipped with up to 2 reagent injectors ... gene assays as well as other luminescence ...
... A perfect complement to high-speed analytical techniques, the AutoTrace SPE is a ... automates the cartridge conditioning, sample loading and elution steps for large volumes aqueous ... ... ...
Biology Products: