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Publications (108)
We elucidate grapevine evolution and domestication histories with 3525 cultivated and wild accessions worldwide. In the Pleistocene, harsh climate drove the separation of wild grape ecotypes caused by continuous habitat fragmentation. Then, domestication occurred concurrently about 11,000 years ago in Western Asia and the Caucasus to yield table an...
Grapevines worldwide are grafted onto Vitis spp. rootstocks in order to improve their tolerance to biotic and abiotic stresses. Thus, the response of vines to drought is the result of the interaction between the scion variety and the rootstock genotype. In this work, the responses of genotypes to drought were evaluated on 1103P and 101-14MGt plants...
Common bean cultivation has historically been a typical component of rural economies in Italy, particularly in mountainous and hilly zones along the Apennine ridge of the central and southern regions, where the production is focused on local landraces cultivated by small-scale farmers using low-input production systems. Such landraces are at risk o...
Downy mildew, caused by the obligate parasite Plasmopara viticola, is one of the most important threats to viticulture. The exploitation of resistant and susceptibility traits of grapevine is one of the most promising ways to increase the sustainability of disease management. Nitrogen (N) fertilization is known for influencing disease severity in t...
Grapevines are challenged by a range of diseases and pests, causing economic losses and requiring often costly approaches to mitigate damage. Public interest in reducing the use of chemicals is a related challenge, along with climate change. Yet, the Vitis gene pool provides vast resources for the development of genetic resistance in rootstock and...
The Eurasian grapevine ( Vitis vinifera ), a species cultivated worldwide for high-quality wine production, is extremely susceptible to the agent of downy mildew, Plasmopara viticola . Nevertheless, germplasm from Georgia (Southern Caucasus, the first grapevine domestication centre), characterized by a high genetic variability, showed resistance tr...
The effects of global warming on plants are not limited to the exacerbation of summer stresses; they could also induce dormancy dysfunctions. In January 2020, a bud break was observed in an old poly-varietal vineyard. Meteorological data elaboration of the 1951–2020 period confirmed the general climatic warming of the area and highlighted the parti...
The domestication and spreading of grapevine as well as the gene flow history had been described in many studies. We used a high-quality 7k SNP dataset of 1,038 Eurasian grape varieties with unique profiles to assess the population genetic diversity, structure, and relatedness, and to infer the most likely migration events. Comparisons of putative...
Downy mildew, caused by the oomycete Plasmopara viticola , is one of the diseases causing the most severe economic losses to grapevine ( Vitis vinifera ) production. To date, the application of fungicides is the most efficient method to control the pathogen and the implementation of novel and sustainable disease control methods is a major challenge...
Traditional breeding or Genetically Modified Organisms (GMOs) have for a long time been the sole approaches to effectively cope with biotic and abiotic stresses and implement the quality traits of crops. However, emerging diseases as well as unpredictable climate changes affecting agriculture over the entire globe forces scientists to find alternat...
Domestication is a process of selection driven by humans, transforming wild progenitors into domesticated crops. The grapevine (Vitis vinifera L.), besides being one of the most extensively cultivated fruit trees in the world, is also a fascinating subject for evolutionary studies. The domestication process started in the Near East and the varietie...
Grapevine (Vitis vinifera) is one of the most widely cultivated plant species of agricultural interest, and is extensively appreciated for its fruits and the wines made from its fruits. Considering the high socioeconomic impact of the wine sector all over the world, in recent years, there has been an increase in work aiming to investigate the biodi...
The discovery of new mechanisms of resistance and natural bioactive molecules could be two of the possible ways to reduce fungicide use in vineyard and assure an acceptable and sustainable protection against Plasmopara viticola, the grapevine downy mildew agent. Emission of volatile organic compounds (VOCs), such as terpenes, norisoprenoids, alcoho...
Background
A wide range of frequency of azole‐resistance in A. fumigatus in different patient populations worldwide was observed threatening to reduce therapeutic options.
Objectives
Estimate the prevalence of azole‐resistance, investigate the molecular mechanisms of resistance, compare the genotypes of resistant clinical isolates with those from...
Most of the vineyards around the world are in areas characterized by seasonal drought, where water deficits and high temperatures represent severe constraints on the regular grapevine growth cycle. Although grapevines are well adapted to arid and semi-arid environments, water stress can cause physiological changes, from mild to irreversible. Screen...
Plasmopara viticola (Berk. et Curt.) Berl. and de Toni, the agent of downy mildew, is one of the most important pathogens of European grapevine (Vitis vinifera L.). Extensive evaluation of cultivated grapevine germplasm has highlighted the existence of resistant phenotypes in the Georgian (Southern Caucasus) germplasm. Resistance is shown as a redu...
An amendment to this paper has been published and can be accessed via the original article.
Downy mildew, caused by the Oomycete Plasmopara viticola, is one of the most important diseases affecting the Eurasian grapevine, Vitis vinifera. The pathogen originated in Northern America and its presence was signaled for the first time into Europe in 1878. In this study, the genetic variability and structure of Italian P. viticola population was...
BACKGROUND: The pathway of anthocyanin biosynthesis, and its alterations leading to berry colour modification, are well known in grape skin. This variability could affect both quantity and quality of pigment accumulation. OBJECTIVE: The present work is focused on 15 grapevine cultivars selected to represent a high variability in the phenotypical co...
Single nucleotide polymorphism (SNP) genotyping arrays are powerful tools to measure the level of genetic polymorphism within a population. The coming of next-generation sequencing technologies led to identifying thousands and millions of SNP loci useful in assessing the genetic diversity. The Vitis genotyping array, containing 18k SNP loci, has be...
Mgaloblishvili, a Vitis vinifera cultivar, exhibits unique resistance traits against Plasmopara viticola, the downy mildew agent. This offers the unique opportunity of exploring the molecular responses in compatible and incompatible plant-pathogen interaction. In this study, whole transcriptomes of Mgaloblishvili, Pinot noir (a V. vinifera suscepti...
Objectives:
This study was conducted to assess the prevalence of azole resistance inAspergillus isolates from patients with haematological malignancies or undergoing haematopoietic stem cell transplantation and to identify the molecular mechanism of resistance.
Methods:
In the 28-month prospective study involving 18 Italian centres,Aspergillus i...
Magna Graecia is the ancient name for the modern geopolitical region of South Italy extensively populated by Greek colonizers, shown by archeological and historical evidence to be the oldest wine growing region of Italy, crucial for the spread of specialized viticulture around Mediterranean shores. The biodiversity of southern Italian grapevine ger...
Microsatellite markers are a valuable tool to facilitate the management of germplasm collections and access genetic diversity. This study reports the genetic characterization of a large collection of 379 rootstocks and other non-vinifera accessions maintained at the University of Milan (Italy). Accessions were genotyped with 22 highly polymorphic m...
Background
Magna Graecia is the ancient name for the modern geopolitical region of South Italy extensively populated by Greek colonizers, shown by archeological and historical evidence to be the oldest wine growing region of Italy, crucial for the spread of specialized viticulture around Mediterranean shores. Here, the genetic diversity of Magna Gr...
The Eurasian grapevine (Vitis vinifera), an Old World species now cultivated worldwide for high-quality wine production, is extremely susceptible to the agent of downy mildew, Plasmopara viticola. The cultivation of resistant V. vinifera varieties would be a sustainable way to reduce the damage caused by the pathogen and the impact of disease manag...
Background
The mountainous region between the Caucasus and China is considered to be the center of domestication for grapevine. Despite the importance of Central Asia in the history of grape growing, information about the extent and distribution of grape genetic variation in this region is limited in comparison to wild and cultivated grapevines fro...
Grapevine (Vitis vinifera L.) is one of the earliest domesticated crops, dating back 6000 years ago in the Near East before spreading into Europe. Despite the abundance of historical, archaeological and genetic records, until now secondary domestication events in European regions are not well demonstrated. Here, a genetic characterisation of grape...
Changes in the performance of genotypes in different environments are defined as genotype x environment (GxE) interactions. In grapevine (Vitis vinifera), complex interactions between different genotypes and climate, soil, and farming practices yield unique berry qualities. However, the molecular basis of this phenomenon remains unclear. To dissect...
Iron chlorosis is a diffuse disorder affecting Mediterranean vineyards. Beside the commonly described symptom of chlorophyll decrease, an apex reddening was recently observed. Secondary metabolites, such as anthocyanins, are often synthetized to cope with stresses in plants. The present work aimed to evaluate grapevine responses to iron deficiency,...
For the production of a highly qualitative wine, such as “Amarone”, variations in the grape (Corvina) pigment composition are not negligible. The aim of this work was the investigation of the Corvina anthocyanin profile changes during ripening. The experiment took place in 2015, in two vineyards located in Valpolicella (Italy) with different traini...
Somatic mutations are the major source of intra-varietal variability in some species such as grapevine (Vitis vinifera L.) that are propagated vegetatively. Aglianico and Muscat of Alexandria are two cultivars mostly cultivated in the south of Italy, showing great intra-varietal diversity. The variability of 15 clones of Aglianico belonging to thre...
Understanding the molecular mechanisms involved in the interaction between the genetic composition and the environment is crucial for modern viticulture. We approached this issue by focusing on the small RNA transcriptome in grapevine berries of the two varieties Cabernet Sauvignon and Sangiovese, growing in adjacent vineyards in three different en...
Background:
Aspergillus fumigatus is frequently recovered from respiratory secretions of cystic fibrosis (CF) patients. Azole resistance has been increasingly reported.
Objectives:
To assess the prevalence of azole resistance in A. fumigatus isolates from patients followed by two CF centers of northern Italy.
Methods:
423 isolates (220 patient...
The viticulture of Sicily, for its vocation, is one of the most important and ancient forms in Italy. Autochthonous grapevine cultivars, many of which known throughout the world, have always been cultivated in the island from many centuries. With the aim to preserve this large grapevine diversity, previous studies have already started to assess the...
Wild Euro-Asiatic grapevine (Vitis vinifera L. subsp. sylvestris (Gmelin) Hegi) is an opportunistic liana with reproductive patterns characterized both by vegetative propagation and sexual reproduction. Vegetative propagation would ensure a rapid vine regeneration and land colonization, while sexual reproduction would assure genetic recombination a...
The article aims at introducing of some local grapevine varieties cultivated in different areas of Azerbaijan. The
cultivars are grown in the ampelographic collection of the Azerbaijani Scientific Research Institute of Viticulture and
Wine-making. The description of their ampelographic specifications was based on the OIV list. Comparing cultivars,...
The aims of the study were to investigate the prevalence of azole resistance among Aspergillus fumigatus clinical isolates. A total of 533 clinical isolates that had been collected between 1995 and 2006, from 441 patients, were screened. No resistance was detected in isolates collected between 1995 and 1997. Starting in 1998, the resistance rate wa...
Color has a fundamental role for the qualitative evaluation and cultivar characterization of fruits. In grape, a normally functional pigment biosynthesis leads to the accumulation of a high quantity of anthocyanins. In this work, 28 Vitis vinifera L. cultivars accumulating low anthocyanins in berries were studied to characterize the biosynthetic dy...
Georgia, in the Caucasian region, is considered the first domestication centre of grapevine. This country is characterized by high morphological variability of cultivated (Vitis vinifera L. subsp. sativa (DC.) Hegi) and wild (Vitis vinifera L. subsp. sylvestris (Gmel.) Hegi) compartments. The main objective of this study was to investigate the leve...
Vitis vinifera subsp. sylvestris is the wild progenitor of cultivated grapevine (V. vinifera subsp. sativa). Wild grapevine populations are part of the Eurasian flora, from Central Asia to the Mediterranean Basin. In most countries, the wild grapevine is considered on the brink of extinction and for this reason several research projects around the...
Berry skin colour is a fundamental qualitative trait of grape varieties, which has become largely diversified during the centuries of viticulture. Colour mutations in grape berry, resulting in black, red, pink, grey, green and yellow fruits, were relatively frequent events. In the Carpathian Basin there are several berry colour variant groups named...