2024-03-28T12:50:20Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1470952017-03-27T10:01:10Zcom_10261_10735com_10261_2col_10261_10737
00925njm 22002777a 4500
dc
Muñoz, C. J.
author
Gómez-Talquenca, Sebastián
author
Fanzone, Martin
author
Peña-Leira, Álvaro
author
Martínez-Zapater, José M.
author
Lijavetzky, Diego
author
2013-04
Des pite the total amount of anthocyanins in red grape cultivars varies significantly, the relati ve content of each anthocyanin (anthocyanin profile or fingerprint) remains constant, thus it is currently accepted that the anthocyanin fingerprint of red cultivars appears to be closely related to genetic characteristics. However, current research on the general fruit composition of severa) clones of Cabernet Sauvignon, Tempranilla and Pinot noir indicates that skin anthocyanin profile is quite similar in most studied clones. We analyzed 134 Ma11Jec clones grown in the same vineyard in Agrelo (Mendoza). Clona! identity of the samples was verified by analyzing nine microsatellite markers. In order to characterize each of the 134 clones present in the studied collection we determined their anthocyanin profile by means of HPLC analysis. For each clone we determined the concentrations of delphinidin (Dp), cyanidin (Cy), petunidin (Pt), peonidin (Po) and malvidin (Mv) for their glycosylated, acetylated and cumarylated forms: Dp3Gl, Cy3Gl, Pt3Gl, Po3Gl, Mv3Gl, Dp3acGI, Cy3acGI, Pt3acGI, Po3acGI, Mv3acGI, Dp3cumGI, Cy3cumGI, Pt3cumGl, Po3cumGI y Mv3cumGI.
The obtained profiles allowed clustering the clones in 1 O contrasted groups. Principal Component
Analysis showed that variation in Mv and Po concentration explained about 90% ofthe variation within
the clones (Mv 63.5% & Po 25.5%, respectively). Based on this information we selected two contrasted groups of clones in order to perform microarray and qRT-PCR analyses with the aim of determine the molecular mechanisms underlining the phenotypic variation within the clones.
IX International Symposium on Grapevine Physiology and Biotechnology (2013)
http://hdl.handle.net/10261/147095
Anthocyanins profile variation within Vitis vinifera cv. Malbec clones