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:6/21/2016)... , June 21, 2016 NuData ... the new role of principal product architect and ... the director of customer development. Both will report ... technical officer. The moves reflect NuData,s strategic growth ... response to high customer demand and customer focus ...
(Date:6/16/2016)... FRANCISCO , June 16, 2016 ... size is expected to reach USD 1.83 ... by Grand View Research, Inc. Technological proliferation and ... banking applications are expected to drive the market ... ) , The development of advanced ...
(Date:6/9/2016)... June 9, 2016  Perkotek an innovation leader in attendance control systems is proud ... work hours, for employers to make sure the right employees are actually signing in, ... ... ... ...
Breaking Biology News(10 mins):
(Date:11/30/2016)... TORONTO , Nov. 30, 2016 /PRNewswire/ - Portage ... Canadian Securities Exchange: PBT.U), is excited to announce ... company focused on developing preclinical ophthalmology assets through ... a potent anti-inflammatory created by Portage Pharmaceuticals Limited ... patients with ocular surface and anterior segment diseases. ...
(Date:11/30/2016)... 30, 2016  The Allen Institute for Cell ... first publicly available collection of gene edited, fluorescently ... key cellular structures with unprecedented clarity. Distributed through ... tools are a crucial first step toward visualizing ... what makes human cells healthy and what goes ...
(Date:11/30/2016)...  Tempus, a technology company focused on supporting ... Cancer Center have partnered to better determine which ... treatment based on next generation genomic and transcriptomic ... research collaboration, Tempus will provide sequencing and analysis ... to Penn. Utilizing next-generation sequencing, machine learning and ...
(Date:11/30/2016)... 30. November 2016   Merck , ... die Unterzeichnung einer Reihe von Vereinbarungen mit ... Evotec AG Screeningleistungen für Mercks Palette genetischer ... Zugriff auf diese Bibliotheken in Kombination mit ... schnelleren Weg zur Ermittlung und Erforschung neuer ...
Breaking Biology Technology: