Featured Research

from universities, journals, and other organizations

Going Back to the Source for a Heartier Apple Tree

Date:
January 5, 2006
Source:
USDA/Agricultural Research Service
Summary:
Grafts, genetic material and rootstocks collected during the 1990s from wild apple trees in central Asia may revolutionize the nation's apple industry. This material shows potential for helping breed trees that bear popular, domestic apples while standing up to destructive diseases and fungi, according to Agricultural Research Service (ARS) scientists.

Fruit representing 21 of 1,600 Malus sieversii trees growing in Geneva, New York. The trees, grown from germplasm collected in central Asia, contain a treasure trove of genes for improving disease resistance of American domestic apples.
Credit: Photo by Peggy Greb

Grafts, genetic material and rootstocks collected during the 1990s from wild apple trees in central Asia may revolutionize the nation's apple industry.

Related Articles


This material shows potential for helping breed trees that bear popular, domestic apples while standing up to destructive diseases and fungi, according to Agricultural Research Service (ARS) scientists. The genetic material was gathered during U.S. Department of Agriculture (USDA) sponsored excursions to Asia and Europe aimed at expanding the known genetic diversity of apples.

Horticulturist Phil Forsline and plant geneticist Gennaro Fazio of ARS' Plant Genetics Research Unit have used the material to raise orchards of the exotic apples near their laboratory in Geneva, N.Y. And, with colleagues in ARS and Cornell University, they've documented with astonishment the disease resistance of many of these trees and the domestic species they've bred with them.

Forsline went on seven of the collecting trips, including four to central Asia. The trips resulted in at least a doubling of the known genetic diversity of apple trees, according to Forsline. The scientists returned with 949 apple tree accessions from central Asia alone. Other excursions were to China, the Caucasus region including Russia and Turkey, and Germany.

Fazio and Forsline are most impressed with the material collected in Kazakhstan, especially accessions of Malus sieversii, an important forerunner of the domestic apple. This is logical, given that Kazakhstan is a likely ancestral origin of familiar domestic apples (Malus x domestica) such as Red Delicious, Golden Delicious and McIntosh.

According to Forsline, the Kazak trees showed significant resistance to apple scab—-the most important fungal disease of apples—as well as to fire blight. They were highly resistant against Phytophthora cactorum, which causes collar rot, and Rhizoctonia solani, an agent of apple replant disease, according to Fazio. Both researchers found genes in the Kazak apples that allow them to adapt to mountainous, near-desert, and cold and dry regions.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Going Back to the Source for a Heartier Apple Tree." ScienceDaily. ScienceDaily, 5 January 2006. <www.sciencedaily.com/releases/2006/01/060103190254.htm>.
USDA/Agricultural Research Service. (2006, January 5). Going Back to the Source for a Heartier Apple Tree. ScienceDaily. Retrieved January 27, 2015 from www.sciencedaily.com/releases/2006/01/060103190254.htm
USDA/Agricultural Research Service. "Going Back to the Source for a Heartier Apple Tree." ScienceDaily. www.sciencedaily.com/releases/2006/01/060103190254.htm (accessed January 27, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Tuesday, January 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How To: Mixed Green Salad Topped With Camembert Cheese

How To: Mixed Green Salad Topped With Camembert Cheese

Rumble (Jan. 26, 2015) Learn how to make a mixed green salad topped with a pan-seared camembert cheese in only a minute! Music: Courtesy of Audio Network. Video provided by Rumble
Powered by NewsLook.com
Water Fleas Prepare for Space Voyage

Water Fleas Prepare for Space Voyage

Reuters - Innovations Video Online (Jan. 26, 2015) Scientists are preparing a group of water fleas for a unique voyage into space. The aquatic crustaceans, known as Daphnia, can be used as a miniature model for biomedical research, and their reproductive and swimming behaviour will be tested for signs of stress while on board the International Space Station. Jim Drury went to meet the team. Video provided by Reuters
Powered by NewsLook.com
Husky Puppy Plays With Ferret

Husky Puppy Plays With Ferret

Rumble (Jan. 26, 2015) It looks like this 2-month-old Husky puppy and the family ferret are going to be the best of friends. Look at how much fun they&apos;re having together! Credit to &apos;Vira&apos;. Video provided by Rumble
Powered by NewsLook.com
Scientists Model Flying, Walking Drone After Vampire Bats

Scientists Model Flying, Walking Drone After Vampire Bats

Buzz60 (Jan. 26, 2015) Swiss scientists build a new drone that can both fly and walk, modeling it after the movements of common vampire bats. Jen Markham (@jenmarkham) has the story. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins