Sentence:  Markers were analysed in decreasing order of informativeness; a marker was only added to the map when it could be localized to a unique interval with a <WSD>lod</WSD> score of >= 3.0. 
Meaning of the word marked with <WSD> tags:  Logarithm of odds; A measure of likelihood calculated by taking the log of the ratio of the probability of a hypothesis being true given the observed data over the probability that the hypothesis is false.