HOME >> BIOLOGY >> NEWS
Gene study determines how humans are related to fruit flies and nematode worms

The most comprehensive genetic study to date concerning the evolutionary relationships among the three animal species whose genes have been completely sequenced--the human, the fruit fly, and the nematode worm--has determined that the human species is more closely related to the fruit fly than to the nematode. "We compared 100 genes that are common among these three species--the largest data set ever used to address this question--and obtained a result that is unambiguous," says S. Blair Hedges, an evolutionary biologist at Penn State, whose research team includes other scientists from Penn State and Japan.

"Cost estimates for acquiring the human genome alone range between 300 million and 3 billion," Hedges comments. "After spending all that money and effort, we now should at least be able to know for sure how these animals are related." These three species, which were singled out for the extensive genome effort, each represent much larger groups of animals: vertebrates are represented by humans, arthropods are represented by the fruit fly, and nematodes are represented by one species of nematode.

The results of the study by Hedges and his colleagues overturn a popular recent hypothesis, based primarily on the study of a single gene, and have important implications for research in fields such as medicine and developmental biology. The study, published in the current edition of the web-based journal BMC Evolutionary Biology, also is expected to impact the content of biology textbooks.

"About five years ago, the journal Nature published an analysis of one gene common to these three species that inexplicably persuaded many scientists to abandon the classic hypothesis of their relationships, which was based on the long-standing method of comparing structural similarities," Hedges says. The new hypothesis, named "Ecdysozoa," argued that fruit flies and nematodes are more closely related to each other than to humans. The classic hypothesis, na
'"/>

Contact: Barbara K. Kennedy
science@psu.edu
814-863-4682
Penn State
22-Apr-2002


Page: 1 2 3 4

Related biology news :

1. Student science contest participation influences study, career choices, alumni say
2. New study shows hope for treating inhalant abuse
3. International study findings link acne-like rash to effectiveness of new targeted cancer treatment
4. Cigarette smoke causes breaks in DNA and defects to a cells chromosomes, Pitt study finds
5. New study indicates arsenic could be suitable as first-line treatment in type of leukaemia
6. Phase II trials of second-generation antisense cancer drug planned following successful early study
7. Preclinical safety study shows adipose-derived stem cells improve heart function after heart attack
8. Indiana University, EPA to study airborne PCBs
9. K-State, other universities to study how climate affects plant evolution
10. USC study links historical increases in life span to lower childhood exposure to infection
11. Washington University in St. Louis leads group studying aging process

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


(Date:3/23/2016)... March 23, 2016 ... Sicherheit Gesichts- und Stimmerkennung mit Passwörtern ... (NASDAQ: MESG ), ein führender Anbieter ... Unternehmen mit SpeechPro zusammenarbeitet, um erstmals dessen ... wird die Möglichkeit angeboten, im Rahmen mobiler ...
(Date:3/22/2016)... Ontario , PROVO and ... Newborn Screening Ontario (NSO), which operates the ... for molecular testing, and Tute Genomics and UNIConnect, ... management technology respectively, today announced the launch of a ... next-generation sequencing (NGS) testing panel. NSO ...
(Date:3/18/2016)... 18, 2016 --> ... ICT, Manned & Unmanned Vehicles, Physical infrastructure and Perimeter Surveillance ... in the border security market and the continuing migration crisis ... Europe has led visiongain to publish this ... --> defence & security companies in the ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... San Diego, CA (PRWEB) , ... June 27, 2016 , ... ... mClinical solutions for clinical trials, announced today the Clinical Reach Virtual Patient ... and their care circle with the physician and clinical trial team. , Using the ...
(Date:6/27/2016)... , ... June 27, 2016 , ... ... for Amgen, will join the faculty of the University of North Carolina ... professor of strategy and entrepreneurship at UNC Kenan-Flagler, with a focus on the ...
(Date:6/27/2016)... 27, 2016   Ginkgo Bioworks , a leading ... was today awarded as one of the World ... world,s most innovative companies. Ginkgo Bioworks is engineering ... real world in the nutrition, health and consumer ... with customers including Fortune 500 companies to design ...
(Date:6/24/2016)... 24, 2016 Epic Sciences unveiled a ... susceptible to PARP inhibitors by targeting homologous recombination ... The new test has already been incorporated into ... cancer types. Over 230 clinical trials ... pathways, including PARP, ATM, ATR, DNA-PK and WEE-1. ...
Breaking Biology Technology:
Cached News: