Navigation Links
In the genome of loblolly pine lies hope for better resistance to a damaging disease
Date:3/20/2014

"The project was a huge undertaking because at 22 gigabases, the loblolly pine genome is about eight times larger than the human genome," said C. Dana Nelson, SRS Southern Institute for Forest Genetics (SIFG) project leader and research geneticist. "The group chose loblolly pine both because of its economic importance, and the knowledge gained from 60 years of breeding the species and managing millions of trees in genetic trials."

As part of the project, researchers identified a candidate for a gene involved in resistance to fusiform rust, a disease that infects southern pines. SIFG biological science technician Katherine Smith worked with John M. Davis, professor and associate director of the School of Forest Resources and Conservation at the University of Florida (UF), to compare mapped sections of the genome with sections found in loblolly specimens previously inoculated with the pathogen that causes fusiform rust.

"Fusiform rust is the most damaging disease of southern pinesand one of the most complex due to genetic interactions between the pathogen and its host," said Davis, who also serves as faculty and Executive Committee member at the UF Genetics Institute. "Genetic resistance is the only realistic way to manage the disease, which infects young trees within their first five years of growth and weakens or girdles the stem. Chemical control is expensive, impractical, and not very good for the environment."

Researchers and breeders can use the resistance genes as markers to track resistance in pine breeding populations and to guide tree planting at the stand level. "The fusiform rust pathogen has evolved to defeat some rust resistance genes in loblolly," said Nelson. "The increased molecular understanding from the loblolly genome sequencing effort provides managers with a new effective tool to determine how well seedlings will grow on a particular site."

SIFG involvement in sequencing the loblolly genome actually goes back at least two decades, when SIFG helped develop an array of resources to help speed up mapping and sequencing the loblolly pine genome and provide the ability to identify genes that influence factors such as tree growth, wood quality, stress tolerance and resistance to disease. SIFG also conserved and supplied the plant tissue used in the genome sequencing project and provided quality control on the DNA samples that were sequenced.


'/>"/>
Contact: C. Dana Nelson
dananelson@fs.fed.us
228-832-2747 x202
USDA Forest Service ‑ Southern Research Station
Source:Eurekalert

Related biology news :

1. Loblolly pine genome is largest ever sequenced
2. Loblolly pines immense genome conquered
3. Newly identified small-RNA pathway defends genome against the enemy within
4. The genome of sesame sheds new lights on oil biosynthesis
5. Scripps Wellderly Genome Resource now available to researchers
6. Pond-dwelling powerhouses genome points to its biofuel potential
7. Genomes of Richard III and his proven relative to be sequenced
8. Genome editing goes hi-fi
9. Scientists invent advanced approach to identify new drug candidates from genome sequence
10. New method developed for ranking disease-causal mutations within whole genome sequences
11. New insight into an emerging genome-editing tool
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/19/2016)... TORONTO , 19 de diciembre de 2016  Mosaic Biomedicals ... el desarrollo acelerado de MSC-1, un anticuerpo humanizado que se espera ... en 2017, con múltiples sitios previstos a lo largo de Europa ... MSC-1 ... factor inhibidor de leucemia (LIF), una citoquina pleiotrópica que se sobreexpresa ...
(Date:12/15/2016)... 15, 2016   WaferGen Bio-systems, Inc. (NASDAQ: ... company, announced today that on December 13, 2016, it ... The Nasdaq Stock Market LLC which acknowledged that, as ... WaferGen,s common stock had been at $1.00 or greater ... compliance with Listing Rule 5550(a)(2) of the Nasdaq Stock ...
(Date:12/12/2016)... 12, 2016  Researchers at Trinity College, Dublin, ... by combining the material with Silly Putty. The mixture ... detector able to sense pulse, blood pressure, respiration, ... The research team,s findings were ... here:  http://science.sciencemag.org/content/354/6317/1257 ...
Breaking Biology News(10 mins):
(Date:1/21/2017)... PARSIPPANY, N.J. , Jan. 20, 2017 /PRNewswire/ ... the "Company"), a company that provides clinically useful ... that it has entered into a securities purchase ... aggregate of 855,000 shares of common stock in ... placement, the Company has agreed to sell to ...
(Date:1/21/2017)... 20, 2017 Aratana Therapeutics, Inc. (NASDAQ: ... the licensing, development and commercialization of innovative biopharmaceutical products ... Company in North America 2016. ... based on the FDA approval of three innovative ... ® (capromorelin oral solution) and NOCITA ® ...
(Date:1/20/2017)... ... 2017 , ... The two newest companies to join the University City Science ... out from The Wistar Institute, and Sanguis, launched by a trio of students from ... , Vironika is developing a treatment for a chronic viral infection and its associated ...
(Date:1/20/2017)... 20, 2017 Ginkgo Bioworks, the organism ... pioneer in the synthesis and assembly of DNA. ... assembling pathway-length synthetic DNA into Ginkgo,s automated organism ... the construction of new organism designs for application ... "Gen9 was founded to significantly increase the world,s ...
Breaking Biology Technology: