Transcripts of soybean isoflavone 7-O-glucosyltransferase and hydroxyisoflavanone dehydratase gene homologues are at least as abundant as transcripts of their well known counterparts

► The transcription profiles of the less known gene homologues for HIDH and GmIF7GT are provided. ► Transcripts of a less known homologue GmIF7GT4 are as abundant as that of the well known homologue GmIF7GT1. ► GmIF7GT4 transcript levels are higher in the roots than transcript levels of other homologues. ► Transcript levels of the less known homologue HIDH2 are comparable to those of the known HIDH1.