Outwitting pesky parasites

MADISON, WI, July 15, 2007 - Across the southern United States, an invisible, yet deadly parasite known as the root-knot nematode is crippling soybean crops. While plant breeders are racing to develop cultivars resistant to the root-knot nematode, they are being slowed down by current time-consuming and expensive methods of screening for resistant plants. Now, researchers believe they have found a shortcut for screening resistant soybean crops.

Researchers at the University of Georgia report the discovery of several molecular markers that will help soybean breeders to accurately screen for root-knot resistant plants at a fraction of the time and cost of current screening techniques in the July issue of The Plant Genome.

While previous studies of soybean crops helped researchers to locate genes associated with root-knot nematode resistance, University of Georgia scientists recently identified single nucleotide polymorphisms (SNPs), slight variations in the DNA, nearby genetic regions that code root-knot nematode resistance. After linking the identified SNPs to root-knot nematode resistance, scientists developed a marker assisted screening test that used SNPs to determine whether or not plants were resistant to root-knot nematode.

The basic objective of any breeding scheme is to identify elite individuals that can pass on their desirable characteristics, explained Bo-Keun Ha, lead author of study. While Ha says most conventional breeders rely on phenotypic evaluations of plants to select the plant with most desirable traits, this process takes time and money. For example, if a breeder wants to select plants with resistance to root-knot nematode based upon a phenotypic evaluation alone, he or she must grow a large population of plants, inoculate plants with nematode eggs, wait until the growth of the nematode and evaluate the damage before selecting the most resistant plants.

Instead of relying on the time-consuming phenotyp

Contact: Sara Uttech
Crop Science Society of America

Page: 1 2

Related biology news :

1. A researcher identifies the parasites responsible for Chagas and Leishmaniasis epidemics
2. Bacterial protein shows promise in treating intestinal parasites
3. Study shows that parasites form the thread of food webs
4. How healthy is that marsh? Biologists count parasites
5. Malaria parasites develop in lymph nodes
6. MBL study shows how good cholesterol (HDLs) provide human immunity to certain parasites
7. Measuring hidden parasites in falciparum malaria
8. Researchers at UGA provide first look at protein expression in Chagas disease-causing parasites
9. Genome sequences for three deadly parasites provide foundation for new drugs
10. Deadly parasites show common genetic core
11. Tracking a killer: Observing liver invasion by malarial parasites

Post Your Comments:

(Date:11/17/2015)... , Nov. 17, 2015 Pressure BioSciences, ... in the development and sale of broadly enabling, pressure ... life sciences industry, today announced it has received gross ... $5 million Private Placement (the "Offering"), increasing the total ...  One or more additional closings are expected in the ...
(Date:11/12/2015)...   Growing need for low-cost, easy to ... paving the way for use of biochemical sensors ... in clinical, agricultural, environmental, food and defense applications. ... medical applications, however, their adoption is increasing in ... emphasis on improving product quality and growing need ...
(Date:11/9/2015)... http://www.researchandmarkets.com/research/52ggmn/global_law ) ... "Global Law Enforcement Biometrics Market 2015-2019" ... http://www.researchandmarkets.com/research/52ggmn/global_law ) has announced the addition of ... 2015-2019" report to their offering. ... ) has announced the addition of the ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... SUNNYVALE, Calif. , Nov. 24, 2015 ... executives will be speaking at the following conference, and ... New York, NY      Tuesday, December 1, ... New York, NY      Tuesday, December 1, ...      Piper Jaffray Healthcare Conference, New York, NY ...
(Date:11/24/2015)... , Nov. 24, 2015 /CNW/ - iCo Therapeutics ("iCo" ... reported financial results for the quarter ended September ... in Canadian dollars and presented under International Financial ... States ," said Andrew Rae , ... regarding iCo-008 are not only value enriching for ...
(Date:11/24/2015)... Florida (PRWEB) , ... November 24, 2015 , ... ... biggest event of the year and one of the premier annual events for ... and ran from 8–11 November 2015, where ISPE hosted the largest number of ...
(Date:11/24/2015)... , Nov. 24, 2015  Clintrax Global, Inc., a worldwide ... Carolina , today announced that the company has set a ... a 391% quarter on quarter growth posted for Q3 of 2014 ... and Mexico , with the establishment of ... December 2015. --> United Kingdom and ...
Breaking Biology Technology:
Cached News: