Transcriptome wide identification, characterization and expression analysis of PHD gene family in .

Unlabelled: L., of the family, yields world's most prized spice, saffron. Saffron is well known for its distinctive aroma, odour and colour, which are imputed to the presence of some specific glycosylated apocarotenoids. Even though the main biosynthetic pathway and most of the enzymes leading to apocarotenoid production have been identified, the regulatory mechanisms that govern the developmental stage and tissue specific production of apocarotenoids in remain comparatively unravelled. Towards this, we report identification, and characterization of plant homeodomain (PHD) finger transcription factor family in . We also report cloning and characterisation of from . recorded highest expression in stigma throughout flower development. exhibited expression pattern which corresponded to the apocarotenoid accumulation in stigmas. CstPHD27 is nuclear localized and transcriptionally active in yeast Y187 strain. Over-expression of in stigmas enhanced apocarotenoid content by upregulating the biosynthetic pathway genes. This report on PHD finger transcription factor family from may offer a basis for elucidating role of this gene family in this traditionally and industrially prized crop.

Supplementary Information: The online version contains supplementary material available at 10.1007/s12298-024-01410-3.