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Agriculture and Forestry
Reports on agriculture and forestry findings from University of Florida provide new insights
August 5th, 2010
According to recent research from the United States, "We evaluated the precision of phenotypic classification for fusiform rust resistance of Pinus taeda L. in a clonally propagated population segregating for the pathotype-specific resistance gene Fr1. In all marker-defined Fr1/fr1 clones screened with low complexity or ambient inoculum, marker-trait cosegregation was complete with no exceptions."
"Uncommon exceptions (4 of 30) in which marker-defined Fr1/fr1 clones screened with high complexity inoculum were diseased were probably due to a low frequency of spores virulent to Fr1 resistance. Marker-trait cosegregation for fr1/fr1 clones was less reliable, as all ramets of...
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Source: Agriculture Week (2010-08-05)