Fig. 3From: Mapping freezing tolerance QTL in alfalfa: based on indoor phenotypingLinkage map of homolog 6B for the maternal parent (3010) where two maps 6B [1]Â and 6B [2] indicate two portions of a single linkage map 6B. The map shows a QTL (dft4) for freezing tolerance. The rectangle of the QTL bar represents an inner (1-LOD support) interval, and the line of the bar indicates an outer (2-LOD support) intervalBack to article page