HOME >> BIOLOGY >> NEWS
Theory on evolution of essential genes is overturned by new finding

A gene passed on by fathers that plays a vital role in helping fertilised eggs to develop into adults has helped scientists overturn the idea that essential genes have always been part of the genetic makeup of a species.

The research, published in the journal Current Biology tomorrow (26 January 2005), shows that an essential 'paternal effect' gene was created only recently in the evolutionary history of the fruit fly, Drosophila.

This finding is remarkable because it shows that new genes with new functions - including essential functions - can evolve at any time.

The researchers made the discovery as part of a project to produce the first molecular genetic characterisation of a paternal effect gene. Paternal effect genes are important because without them a fertilised egg cannot develop into an adult. Similar genes are most likely present in other animals, including humans.

Using molecular techniques, the researchers found that the Drosophila paternal effect gene they were characterising was only present in the melanogaster sub-group of fruit fly, but its progenitor, or ancestor, was present in all of the different sub-groups.

Using statistical information about the rate at which genes evolve, the researchers worked out that the gene was only about 1-2 million years old, and much younger than the majority of the genes in the remainder of the fruit fly genome.

This finding, that an essential gene has a relatively recent origin, overturns the conventional notion that genes with vital functions must have been created a long time ago, but raises important questions about why and how this particular gene evolved.

"This discovery really changes our concept of how new gene function can evolve, which is a major issue for evolutionary biology," said Dr Tim Karr from the University of Bath, who made the discovery with colleagues in the Centre de Genetique Moleculaire et Cellulaire in France and the University of
'"/>

Contact: Andrew McLaughlin
a.mclaughlin@bath.ac.uk
44-122-538-6883
University of Bath
25-Jan-2005


Page: 1 2

Related biology news :

1. Theory of oscillations may explain biological mysteries
2. Watching rocks grow: Theory explains landscape of geothermal springs
3. Clones on task serve greater good, evolutionary study shows
4. New textbook illuminates the close links between evolutionary and molecular biology
5. Coelacanth fossil sheds light on fin-to-limb evolution
6. Genomics study provides insight into the evolution of unique human traits
7. New proteomics research promises to revolutionize biomedical discovery
8. Species detectives track unseen evolution
9. Study identifies energy efficiency as reason for evolution of upright walking
10. Clues to future evolution of HIV come from African green monkeys
11. Tumor painting revolutionizes fight against cancer

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/4/2016)... 2016 The field of Human Microbiome ... most popular hubs of the biotechnology industry. While ... studies of human microbiota, have garnered a lot ... microbiome space has literally exploded in terms of ... report focuses on biomedical aspects of research, development, ...
(Date:2/3/2016)... 3, 2016 ... the "Emotion Detection and Recognition Market ... Others), Software Tools (Facial Expression, Voice Recognition ... Regions - Global forecast to 2020" ... http://www.researchandmarkets.com/research/d8zjcd/emotion_detection ) has announced the addition ...
(Date:2/2/2016)... Technology Enhancements Accelerate Growth of X-ray Imaging ... and computed radiography markets in Thailand ... Indonesia (TIM). It provides an in-depth analysis ... as regional market drivers and restraints. The study offers ... market attractiveness, both for digital and computed radiography. Market ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... ORLANDO, Florida , February 11, 2016 ... Populations and Promote Genetic Understanding to Support Research and Discovery ... consortium, GenomeAsia 100K, today announced an ambitious plan to sequence ... 12 South Asian countries and at least 7 of North ... --> In the first phase, the project will focus ...
(Date:2/11/2016)... ATLANTA , Feb. 11, 2016  Spectra BioPharma ... Organization (CSO) that provides biopharma companies the experience, ... implement and deploy outsourced sales teams. Created in ... team addresses both the strategic and tactical needs ... innovative sales solutions through both personal and non-personal ...
(Date:2/11/2016)... BioInformant announces the February 2016 release of its ... and Technologies – Market Size, Segments, Trends, and Projections ... The first and only market research firm ... more than a decade of historical information on all ... type. This powerful 175 page global strategic report contains ...
(Date:2/10/2016)... Early-career researchers from Indonesia ... Uganda and Yemen ... Indonesia , Nepal , ... Yemen are being honored for their accomplishments in nutrition, psychiatry, ... mentoring young women scientists who are pursuing careers in agriculture, biology and ...
Breaking Biology Technology:
Cached News: