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:11/20/2019)... ... November 20, 2019 , ... BioInformatics Inc., part of Science and ... today announced the winners of the Life Science Industry Awards for the most innovative ... Industry Awards – Innovation: , Most Innovative New Product – Cell Biology, ...
(Date:11/19/2019)... ... November 19, 2019 , ... ... sample preparation, and Bio-Rad Laboratories, Inc. (NYSE: BIO and BIOb), a global leader ... which Diagenode will offer Single-Cell ATAC-Seq (scATAC-Seq) Services, featuring Bio-Rad’s Droplet Digital PCR ...
(Date:11/19/2019)... ... November 19, 2019 , ... Hosted at the Las Vegas ... MJBizCon 2019 is the largest gathering of MJBiz business professionals in the world. ... to benefit every sector, there is no show quite like it. Atlantic Ultraviolet will ...
Breaking Biology News(10 mins):
(Date:11/9/2019)... ... November 08, 2019 , ... ... technology for use in pathology research, today announced the results of analyses ... patients enrolled in the phase 3 selonsertib studies (STELLAR). Strong correlations were ...
(Date:11/5/2019)... ... November 04, 2019 , ... ... delivery technologies, development, and manufacturing solutions for drugs, biologics, gene therapies, and ... development technology, GPEx® Boost. The technology enhances Catalent’s proven GPEx expression platform ...
(Date:11/2/2019)... ... October 31, 2019 , ... ... used to communicating with each other: study managers, principal investigators, supply chain managers, ... a party is not informed of the latest data, potentially leading to patient ...
(Date:10/30/2019)... ... October 30, 2019 , ... While using cold plasma ... students at South Dakota School of Mines & Technology are exploring new ... healthy cells alive. , If successful, the technique would prove to be a ...
Breaking Biology Technology:
Cached News: