A SmelAAT Acyltransferase Variant Causes a Major Difference in Eggplant (Solanum melongena L.) Peel Anthocyanin Composition.

ABSTRACT: Eggplant berries are rich in anthocyanins like delphinidin-3-rutinoside (D3R) and nasunin (NAS), which are accumulated at high amounts in the peel. NAS is derived by D3R through acylation and glycosylation steps. The presence of D3R or NAS is usually associated with black-purple or lilac fruit coloration of the most cultivated varieties, respectively. Building on QTL mapping position, a candidate gene approach was used to investigate the involvement of a BAHD anthocyanin acyltransferase (SmelAAT) in determining anthocyanin type. The cDNA sequence comparison revealed the presence of a single-base deletion in D3R-type line '305E40' (305E40_aat) with respect to the NAS-type reference line '67/3'. This is predicted to cause a frame shift mutation, leading to a loss of SmelAAT<

SUBMITTER: Florio FE 

PROVIDER: S-EPMC8431300 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature