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  • From: Suzi Teghtmeyer <srt175f@smsu.edu>
  • To: nafex@lists.ibiblio.org
  • Subject: [NAFEX] Report: dwarf apple tree or not?
  • Date: Fri, 14 Nov 2003 08:24:34 -0600

LESS WAITING TIME TO DETERMINE IF APPLE TREE'S A DWARF
http://www.isaaa.org/kc/CBTNews/2003_Issues/Nov/CBT_Nov_14.htm#less

Scientists from the Agricultural Research Service of the US Department of Agriculture have significantly reduced the time to determine if an apple tree will grow to be a dwarf and resist diseases. Through gene mapping, Genarro Fazio and H. Todd Holleran of the ARS Plant Genetic Resources Unit in New York, have discovered the genetic inheritance of the dwarfing characteristic in apple tree roots, also known as rootstocks.
The discovery can help researchers find molecular markers that can help identify dwarf varieties, as well as positive and negative traits within those varieties, early in their development. Currently, a tree must grow for about 12 years before growers can tell whether it's a dwarf.
Fazio says the ability to read genetic markers may cut these evaluation times in half. In addition, further understanding of the workings of the genetic inheritance gene may make it possible to transfer the knowledge to other tree fruit systems.
More on this research in the November issue of Agricultural Research magazine, available online at:  http://www.ars.usda.gov/is/AR/archive/nov03/apple1103.htm

-----Suzi Teghtmeyer
Librarian, Paul Evans Library of Fruit Science
Southwest Missouri State University Mtn. Grove Campus and Missouri Fruit Experiment Station
9740 Red Spring Rd, Mountain Grove, MO 65711
Phone: 417-926-4105, Fax: 417-926-6646,  email: srt175f@smsu.edu
URL: http://library.smsu.edu/paulevans/
AgNIC Viticulture site: http://library.smsu.edu/paulevans/viticulture1.shtml
Member: CBHL, USAIN, ALA, ACRL, IAALD


  • [NAFEX] Report: dwarf apple tree or not?, Suzi Teghtmeyer, 11/14/2003

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