HOME >> BIOLOGY >> NEWS
Chromosome centers defined and sequenced for model plant

The serendipitous discovery of a rare mutation and five years of concentrated effort have allowed a team of American and British researchers to define the centromeres of the five chromosomes of Arabidopsis thaliana, a flowering plant that has become the primary model for plant genetics. The centromere is the part of the chromosome that ensures each dividing cell inherits the correct DNA.

The findings, published in the December 24th issue of Science, represent the first time that scientists working with a multi-cellular organism have been able to identify the genetic boundaries of the centromeres -- which are resistant to standard gene mapping techniques -- and to unravel their DNA sequences.

"The centromere is perhaps the most important but also the most inaccessible and the least understood part of a chromosome," said Daphne Preuss, Ph.D., assistant professor of molecular genetics and cell biology at the University of Chicago and leader of the research team.

"Precise mapping of these crucial segments of DNA should shed light on the nature and behavior of chromosomes," said Preuss. "It could help define the centromeres in more complex organisms, boost plant genomics, and speed the development of artificial chromosomes for use in plant engineering," she added. "This now makes Arabidopsis the leading candidate for thorough sequencing of the entire genome in a higher organism."

The Arabidopsis Genome Project hopes to complete sequencing of the first full plant genome by the end of 2000. The sequences of chromosomes
'"/>


Contact: John Easton
jeaston@mcis.bsd.uchicago.edu
773-702-6241
University of Chicago Medical Center
23-Dec-1999


Page: 1 2 3 4

Related biology news :

1. Chromosome losses mean poor survival in childhood leukemia
2. Chromosome caps predict bone marrow disease
3. Gene-rich human Chromosome 19 sequence completed
4. Chromosomes are nibbled before they fuse, researchers report
5. Chromosome assessment could predict increased risk of death from age-related disease
6. Discovery: Chromosomes Found To End In Big Loops
7. UI Researchers Find Possible Genetic Link Between The X Chromosome And Ovarian Cancer
8. Counting X Chromosomes To Determine Sex
9. Genetic Code Of Chromosome Of Malaria Parasite Deciphered
10. Hopkins And International Team Maps First Major Cancer Gene To X Chromosome
11. UNC Scientists Succeed In Inserting Gene In Human Cells Via Artificial Chromosome

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


(Date:4/13/2016)... CHICAGO , April 13, 2016  IMPOWER physicians ... are setting a new clinical standard in telehealth ... By leveraging the higi platform, IMPOWER patients can ... weight, pulse and body mass index, and, when they ... quick and convenient visit to a local retail location ...
(Date:3/29/2016)... 29, 2016 LegacyXChange, Inc. (OTC: ... and SelectaDNA/CSI Protect are pleased to announce our successful ... a variety of writing instruments, ensuring athletes signatures against ... collectibles from athletes on LegacyXChange will be assured of ... DNA. Bill Bollander , CEO states, ...
(Date:3/22/2016)... PROVO and SANDY, Utah ... (NSO), which operates the highest sample volume laboratory in ... Tute Genomics and UNIConnect, leaders in clinical sequencing informatics ... the launch of a project to establish the informatics ... NSO has been contracted by the ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... ... 27, 2016 , ... Cambridge Semantics, the leading provider of Smart ... it has been named to The Silicon Review’s “20 Fastest Growing Big Data Companies ... Semantics serves the needs of end users facing some of the most complex data ...
(Date:4/27/2016)... ... 2016 , ... The Pittcon Organizing Committee is pleased to announce that Charles ... member of Committee since 1987. Since then, he has served in a number of ... chairman for both the program and exposition committees. In his professional career, Dr. Gardner ...
(Date:4/27/2016)... April 27, 2016 NanoStruck ... (OTCPink: NSKQB) ( Frankfurt : 8NSK) ... Pressemitteilung vom 13. August 2015 die Genehmigung von ... um zusätzliche 200.000.000 Einheiten auf 400.000.000 Einheiten zu ... bringen. Davon wurden 157.900.000 Einheiten mit dem ersten ...
(Date:4/27/2016)... ... April 27, 2016 , ... The Board of Directors of ... John Tilton as Chief Commercial Officer.  Mr. Tilton joined Biohaven from Alexion Pharmaceuticals, ... leaders responsible for the commercialization of multiple orphan drug indications. Mr. Tilton ...
Breaking Biology Technology:
Cached News: