Navigation Links
Biologists discover gene behind 'plant sex mystery'
Date:10/22/2008

An enigma unique to flowering plants has been solved by researchers from the University of Leicester (UK) and POSTECH, South Korea.

The discovery is reported in the journal Nature on 23 October 2008.

Scientists already knew that flowering plants, unlike animals require not one, but two sperm cells for successful fertilisation.

The mystery of this 'double fertilization' process was how each single pollen grain could produce 'twin' sperm cells. One to join with the egg cell to produce the embryo, and the other to join with a second cell in the ovary to produce the endosperm, a nutrient-rich tissue, inside the seed.

Double fertilisation is essential for fertility and seed production in flowering plants so increased understanding of the process is important.

Now Professor David Twell, of the Department of Biology at the University of Leicester and Professor Hong Gil Nam of POSTECH, South Korea report the discovery of a gene that has a critical role in allowing precursor reproductive cells to divide to form twin sperm cells.

Professor Twell said: "This collaborative project has produced results that unlock a key element in a botanical puzzle.

The key discovery is that this gene, known as FBL17, is required to trigger the destruction of another protein that inhibits cell division. The FBL17 gene therefore acts as a switch within the young pollen grain to trigger precursor cells to divide into twin sperm cells.

"Plants with a mutated version of this gene produce pollen grains with a single sperm cell instead of the pair of sperm that are required for successful double fertilization.

"Interestingly, the process employed by plants to control sperm cell reproduction was found to make use of an ancient mechanism found in yeast and in animals involving the selective destruction of inhibitor proteins that otherwise block the path to cell division.

"Removal of these blo
'/>"/>

Contact: Professor David Twell
twe@le.ac.uk
44-011-625-22281
University of Leicester
Source:Eurekalert  

Page: 1 2

Related biology news :

1. The American Society of Plant Biologists announces 2007 awards
2. Biologists expose hidden costs of firefly flashes
3. Tufts University biologists link Huntingtons disease to health benefits in young
4. UD plant biologists uncover top wetland plants hidden weapon
5. Evolution is deterministic, not random, biologists conclude from multi-species study
6. Biologists find unusual plant gene: abstinence by mutual consent
7. Ant parasite turns host into ripe red berry, biologists discover
8. Cell biologists announce child-care grants for scientist-parents at annual meeting
9. Biologists surprised to find parochial bacterial viruses
10. Biologists at UC San Diego identify key protein in cells self-eating function
11. Biologists are from Mars, chemists are from Venus?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Biologists discover gene behind 'plant sex mystery'
(Date:4/17/2014)... modeling study suggests that fish consumption advisories for ... to long-lived contaminants like persistent organic pollutants (POPs). ... of researchers including University of Toronto Scarborough PhD ... at how different levels of environmental contamination, a ... chemicals in the body influenced exposure in her ...
(Date:4/17/2014)... in German . ... they also provide us with a continuous stream of information ... or sit still in a car the world glides ... retinas. Seemingly without effort, our brain calculates self-motion from this ... and a steady gaze during our own movements. Together with ...
(Date:4/17/2014)... professor Rajendra Singh Thursday as a "Champion of ... solar deployment in the residential, commercial and industrial ... of Electrical and Computer Engineering and director of ... local hero leading the charge across the country ... power and driving policy changes at the local ...
Breaking Biology News(10 mins):Fish consumption advisories fail to cover all types of contaminants 2How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... applauds the US Court of Appeals for the District of ... against the use of public funds for embryonic stem cell ... cell research and the nation,s scientific community. Most importantly, ... suffering from incurable diseases," says Susan L. Solomon, CEO of ...
... a groundbreaking new videojournal to complement the ... & Advanced Surgical Techniques has been ... ( http://www.liebertpub.com ). Videoscopy ( http://www.liebertpub.com/products/product.aspx?pid=390 ) ... of the latest techniques and technologies used ...
... ground to plant trees may be an excellent gateway to ... University of Maryland study, based on work with New York ... in environmental stewardship, the more s/he engages with other types ... Together ", which the researchers released to coincide with Arbor ...
Cached Biology News:Groundbreaking minimally invasive surgical videojournal launched by Mary Ann Liebert Inc. 2Digging in dirt, Arbor Day planting, may help build citizenship: UMD study 2
(Date:1/15/2014)... The Pittcon Organizing Committee is pleased to ... Tech , an e-Journal and producer of Food ... second year for the co-location of Food Labs Conference to ... that the registration fee to attend the two-day Food Lab ...
(Date:1/15/2014)... 15, 2014 Look inside the new ... for the lab, from fluid handling to instruments to ... ship when you order. , Preferred Solutions features ... from the L/S® model for precise flow control and ...
(Date:1/15/2014)... and SAN JOSE, California , ... biotechnology company developing antibody-drug conjugates for cancer, today announced the ... of Directors. Dr Reynolds has over 20 years, development experience ... Officer at Seattle Genetics. "I am delighted to ...
(Date:1/15/2014)... This webinar will focus on EMA and ... in biosimilars. , Regulatory frameworks are evolving many countries ... the complex nature of biopharmaceuticals makes the demonstration of ... challenging. Based on the specific aspects of biosimilar drug ...
Breaking Biology Technology:Pittcon Announces Second Year Partnership With Food Safety Tech 2Pittcon Announces Second Year Partnership With Food Safety Tech 3Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2
... Mylan Inc. (Nasdaq: MYL ) today ... company,s credit ratings, including the "Corporate Family Rating," to ... is stable.  According to Moody,s: "Mylan,s ... in the global generic pharmaceutical industry, its strong geographic ...
... a molecular diagnostics company, announced today the publication of ... which may influence the amount of fetal DNA found ... Kypros Nicolaides, MD, of Harris Birthright Research Centre for ... Kingdom. (Logo: http://photos.prnewswire.com/prnh/20120326/NY75864LOGO ) ...
... a metal surface at the scale of atoms and ... computer chips or the reflective silver in optical components ... may seem high-tech and precise, the technique has been ... physics. In a new study, Brown University engineers modeled ...
Cached Biology Technology:Moody's Upgrades Mylan 2Ariosa Diagnostics Announces Publication of Study on Influential Factors Affecting Fetal DNA Concentration in Blood of Pregnant Women 2How ion bombardment reshapes metal surfaces 2How ion bombardment reshapes metal surfaces 3
... Alsevers solution is an isotonic, balanced salt ... preservative, which permits the storage of whole blood ... usage, an equal volume of blood is collected ... but thoroughly, mixed. The solution is placed in ...
... OligoMix or individual RNA sequences from high throughput ... small RNAs from LC Sciences. These products provide ... millions) of DESIGNED sequences delivered in a microtube ... containing a single verified RNA sequence. This is ...
... GCMS-QP2010s Gas Chromatograph/Mass Spectrometer, utilizing many ... GCMS-QP2010 Plus, offers high throughput and ... excellent performance-to-cost ratio. Like the GCMS-QP2010 ... linear velocity for optimum separation, 20 ...
... Assay Kit contains all reagents necessary to ... lineage, as determined by staining for mineralization. ... necessary reagents and a protocol for quantifying ... product is useful for studying the effects ...
Biology Products: