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:4/6/2017)... Forecasts by Product Type (EAC), Biometrics, Card-Based ... & Logistics, Government & Public Sector, Utilities / Energy ... Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality & ... for a definitive report on the $27.9bn Access Control ... ...
(Date:4/3/2017)... 3, 2017  Data captured by IsoCode, ... detected a statistically significant association between the ... treatment and objective response of cancer patients ... predict whether cancer patients will respond to ... well as to improve both pre-infusion potency testing ...
(Date:3/28/2017)... PUNE, India , March 28, 2017 ... (Analog, IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), ... Maintenance), Vertical, and Region - Global Forecast to 2022", ... 30.37 Billion in 2016 and is projected to reach ... 15.4% between 2017 and 2022. The base year considered ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... 10, 2017 SomaGenics announced the receipt of ... develop RealSeq®-SC (Single Cell), expected to be the first ... (including microRNAs) from single cells using NGS methods. The ... to accelerate development of approaches to analyze the heterogeneity ... "New techniques for measuring levels of mRNAs in individual ...
(Date:10/10/2017)... ... October 10, 2017 , ... The Pittcon Program Committee is ... honoring scientists who have made outstanding contributions to analytical chemistry and applied spectroscopy. ... world’s leading conference and exposition for laboratory science, which will be held February ...
(Date:10/9/2017)... ... October 09, 2017 , ... The award-winning American Farmer television series will feature ... Farmer airs Tuesdays at 8:30aET on RFD-TV. , With global population estimates nearing ... how to continue to feed a growing nation. At the same time, many of ...
(Date:10/9/2017)... ... October 09, 2017 , ... ... line of medical marijuana products targeting the needs of consumers who are incorporating ... Kindred takes place in Phoenix, Arizona. , As operators of two successful Valley ...
Breaking Biology Technology:
Cached News: