Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Characterization Among and within Sicilian Tetraploid Wheat Landraces by Grain Storage Protein Analysis

Samuela Palombieri
ORCID logo ,
Marco Bonarrigo
ORCID logo ,
Silvia Potestio
,
Francesco Sestili
ORCID logo ,
Bernardo Messina
,
Giuseppe Russo
ORCID logo ,
Claudia Miceli
ORCID logo ,
Benedetto Frangipane
ORCID logo ,
Marco Genduso
ORCID logo ,
Chiara Delogu
,
Lorella Andreani
,
Stefania Masci
* ORCID logo
Version 1 : Received: 10 February 2024 / Approved: 12 February 2024 / Online: 12 February 2024 (13:15:39 CET)

A peer-reviewed article of this Preprint also exists.

Palombieri, S.; Bonarrigo, M.; Potestio, S.; Sestili, F.; Messina, B.; Russo, G.; Miceli, C.; Frangipane, B.; Genduso, M.; Delogu, C.; Andreani, L.; Masci, S. Characterization among and within Sicilian Tetraploid Wheat Landraces by Gluten Protein Analysis for Traceability Purposes. Plants 2024, 13, 741. Palombieri, S.; Bonarrigo, M.; Potestio, S.; Sestili, F.; Messina, B.; Russo, G.; Miceli, C.; Frangipane, B.; Genduso, M.; Delogu, C.; Andreani, L.; Masci, S. Characterization among and within Sicilian Tetraploid Wheat Landraces by Gluten Protein Analysis for Traceability Purposes. Plants 2024, 13, 741.

Abstract

The criteria of “Distinctness, Uniformity and Stability” as well as a high "overall quality index” are used to register the Italian modern varieties to the national register. Differently, local conservation varieties can be certified under different EU Directives having, as overall objective, the preservation of biodiversity and the containment of genetic erosion. In recent years, products derived from an-cient grains are perceived to be healthier and more sustainable by consumer, especially in Italy, with consequent higher market prices. Ancient tetraploid wheat varieties registered in the national reg-ister of conservation varieties are 28, 24 of which are Sicilian. They are supposed to have a wide genetic variability compared to modern ones, making them vulnerable of fraud because they are difficult to trace. It is therefore important to have tools able to discriminate the autochthonous Si-cilian varieties. This can be done by gluten proteins composition, which also gives information on the technological properties of derived products. Fifty-one accessions belonging to 22 ancient va-rieties of Sicilian tetraploid (mostly durum) wheat were analyzed. Although a wide intra-accession and intra-varietal variability was assessed, the gliadin pattern of bulks of seeds belonging to each variety was discriminatory. Moreover, differences in technological attitudes were found between landraces. This paves the way to use gluten protein patterns for traceability allowing local farmers and producers to valorize their products and assure consumers about the transparency of the entire supply chain.

Keywords

durum wheat; landraces; traceability; gliadin; glutein subunits

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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