Classification of the LMW glutenin genes types according to different grouping methods.

Grouping method a is used in the present study ; method b is reviewed by D'Ovidio and Masci 2004 [65]; method c is based on Ikeda et al., 2002 [4]. The present study uses a classification method which is based on the thorough comparison of the entire coding region [5]. Sequences longer than 300 nucleotides were used for the promoter analyses, and they are labelled with a +sign. Shorter sequences or where no sequence information was available for LMW glutenin gene types were labelled with a - sign.