Article
Plant Sciences
Idd Ramathani, Julius P. Sserumaga, Sarah Nanyiti, Settumba B. Mukasa, Titus Alicai
Summary: This study analyzed the genetic diversity of Rice yellow mottle virus in Uganda. The results showed that the virus isolates in Uganda were closely related to those from Kenya, Tanzania, and Madagascar, but not to the isolates from West Africa. The diversity of the virus was found to be limited, especially in the eastern region of Uganda.
Article
Plant Sciences
Vinicius Henrique Bello, Larissa Carpim, Harri Jose Lorenzi, Jorge Alberto Marques Rezende, Elliot Watanabe Kitajima
Summary: In 2020, virus-like symptoms were observed in Physalis peruviana plants in Brazil, with leaf size reduction, mosaic, and blistering. Transmission electron microscopy revealed the presence of isometric particles approximately 30 nm in diameter in leaf extracts. Molecular assays and nucleotide sequencing confirmed a mixed infection of cucumber mosaic virus (CMV) and physalis rugose mosaic virus (PhyRMV). Phylogenetic analysis showed that the CMV belonged to subgroup IA. CMV and PhyRMV were confirmed by RT-PCR and CMV was transmitted by Aphis gossypii. This is the first report of CMV infecting P. peruviana plants in Brazil.
JOURNAL OF PHYTOPATHOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Gints Kalnins, Rebeka Ludviga, Ieva Kalnciema, Gunta Resevica, Vilija Zeltina, Janis Bogans, Kaspars Tars, Andris Zeltins, Ina Balke
Summary: Sobemoviruses encode serine-like 3C proteases (Pro) that participate in the processing and maturation of other virus-encoded proteins. Its cis and trans activity is mediated by the naturally unfolded virus-genome-linked protein (VPg). Nuclear magnetic resonance studies show a Pro-VPg complex interaction and VPg tertiary structure; however, information regarding structural changes of the Pro-VPg complex during interaction is lacking.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Virology
Caterynne Melo Kauffmann, Alessandra de Jesus Boari, Joao Marcos Fagundes Silva, Rosana Blawid, Tatsuya Nagata
Summary: A new sobemovirus, named mimosa mosaic virus (MimMV), was discovered and isolated from a mimosa plant using high-throughput sequencing. The genome sequence, confirmed by Sanger sequencing, consists of 4595 nucleotides. Phylogenetic analysis based on predicted amino acid sequences showed that MimMV shares 52.7% and 31.8% sequence identity with the P2b protein and coat protein of blueberry shoestring virus, respectively. The complete genome sequence of MimMV shares less than 47% identity with other sobemoviruses, suggesting that it belongs to a new species named Sobemovirus mimosae.
ARCHIVES OF VIROLOGY
(2023)
Article
Agronomy
Amanda Savi, Eduardo Silva Gorayeb, Samara Campos Nascimento, Caroline Bolson de Faria, Thor Vinicius Martins Fajardo, Antonio Nhani Junior, Amami Bogo, Ricardo Trezzi Casa, Fabio Nascimento da Silva
Summary: The study characterized the Physalis rugose mosaic virus (PhyRMV) associated with Physalis peruviana and evaluated its transmission through seeds, finding it unlikely to be transmitted through physalis seeds.
Article
Agronomy
Heron Delgado Kraide, Eike Yudi Nishimura Carmo, Arnaldo Esquivel-Farina, Camila Geovana Ferro, Paula Porrelli Moreira da Silva, Jorge Alberto Marques Rezende
Summary: Two severe viruses, PhyRMV and GRSV, have been reported to infect Physalis peruviana plants in Brazil, causing reduced plant development, yield, and postharvest fruit characteristics. These infections result in decreased plant height, aerial dry weight, fruit yield, and size. The viruses also impact postharvest properties of the fruits, such as acidity, soluble solids, phenolic compound concentration, antioxidant activity, pulp firmness, and palatability.
Article
Biochemistry & Molecular Biology
Vianney Poignavent, Francois Hoh, Guillaume Terral, Yinshan Yang, Francois-Xavier Gillet, Jeong-Hyeon Kim, Frederic Allemand, Eric Lacombe, Christophe Brugidou, Sarah Cianferani, Helene Demene, Florence Vignols
Summary: Viruses of the sobemovirus genus, including the rice yellow mottle virus (RYMV), cause significant losses in agriculture. In this study, the complete 3D structure and dynamics of the P1 protein, responsible for RYMV infectivity, were determined. The P1 protein consists of two independent domains with distinct zinc fingers and different sensitivities to oxidoreduction conditions. The capacity of P1 to oligomerize and key residues essential for infectivity in rice tissues were also identified. These findings provide insights into RYMV functions and its interaction with the host plant.
JOURNAL OF MOLECULAR BIOLOGY
(2022)
Article
Virology
Martin Frei, Cecilia Sarmiento, Kairi Kaerblane, Annette Niehl, Merike Somera
Summary: In this study, we sequenced four historical isolates of CnMoV from different hosts and locations. The CnMoV genome ranged from 4417 to 4419 nt and encoded five ORFs. Phylogenetic analysis showed that CnMoV belongs to the Sobemovirus genus. We found high similarity in nucleotide and amino acid sequences among the sequenced CnMoV isolates. Amino acid changes in the coat protein were associated with serological differences.
ARCHIVES OF VIROLOGY
(2023)
Article
Genetics & Heredity
Yu-Rong Wei, Xiao-Yun Mi, Jian-Yong Wu
Summary: The genome sequence of a Sobemovirus was identified in the feces of northern pintail in Xinjiang, China, through metagenomic sequencing. This virus has a linear RNA molecule and is closely related to SoMV-WA and ATCC PV-109 with a nucleotide identity of 86.7%. Phylogenetic analysis suggests that the virus belongs to the species Sowbane Mosaic Virus. This is the first report of SoMV in the feces of wild birds and in China, indicating a potential role of northern pintail in the transmission of SoMV.
Article
Virology
C. Desbiez, E. Verdin, H. Lecoq
Summary: A novel virus tentatively named snake melon asteroid mosaic virus (SMAMV) was discovered in cucurbit crops in Sudan, showing sequence data suggesting it belongs to the genus Sobemovirus. The full-length sequence of an SMAMV isolate was obtained, confirming it as a new species of Sobemovirus. Sequence identity to other Sobemoviruses was below 50%, indicating a distinct relationship.
ARCHIVES OF VIROLOGY
(2021)
Review
Virology
Merike Somera, Cecilia Sarmiento, Erkki Truve
News Item
Plant Sciences
M. Somera, M. Gantsovski, E. Truve, P. Soovali
Article
Virology
Grete Nummert, Merike Somera, Gabriela Uffert, Erik Abner, Erkki Truve
Article
Virology
Merike Somera, Erkki Truve
ARCHIVES OF VIROLOGY
(2013)
News Item
Plant Sciences
M. Somera, E. Truve, P. Soovali
Article
Plant Sciences
Merike Somera, Anders Kvarnheden, Cecile Desbiez, Dag-Ragnar Blystad, Pille Soovali, Jiban Kumar Kundu, Mark Gantsovski, Jim Nygren, Herve Lecoq, Eric Verdin, Carl Spetz, Lucie Tamisier, Erkki Truve, Swbastien Massart
Article
Microbiology
Merike Somera, Sebastien Massart, Lucie Tamisier, Pille Soovali, Kanitha Sathees, Anders Kvarnheden
Summary: The study used high-throughput sequencing to survey different species of barley and cereal yellow dwarf viruses in Estonian cereal fields, revealing a new BYDV-OYV species closely related to BYDV-PAV-CN. By analyzing complete genome sequences, the study found genetic relationships between BYDV-OYV and BYDV-PAV-CN, both meeting the species criteria of the Luteovirus genus. Update of diagnostic primers based on genomic information is essential for accurate detection and surveillance of YDVs.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Merike Somera, Denis Fargette, Eugenie Hebrard, Cecilia Sarmiento
Summary: The family Solemoviridae consists of viruses with icosahedral particles, a genome of 4-6 kb positive- sense, monopartite, polycistronic RNA, and a narrow host range. Transmission methods vary among different genera within the family.
JOURNAL OF GENERAL VIROLOGY
(2021)
Correction
Microbiology
Merike Somera, Sebastien Massart, Lucie Tamisier, Pille Soovali, Kanitha Sathees, Anders Kvarnheden
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Genetics & Heredity
Francesco Guarino, Angela Cicatelli, Stefano Castiglione, Dolores R. Agius, Gul Ebru Orhun, Sotirios Fragkostefanakis, Julie Leclercq, Judit Dobranszki, Eirini Kaiserli, Michal Lieberman-Lazarovich, Merike Somera, Cecilia Sarmiento, Cristina Vettori, Donatella Paffetti, Anna M. G. Poma, Panagiotis N. Moschou, Mateo Gasparovic, Sanaz Yousefi, Chiara Vergata, Margot M. J. Berger, Philippe Gallusci, Dragana Miladinovic, Federico Martinelli
Summary: Crop adaptation to climate change is influenced by epigenetic mechanisms, which are still poorly understood in non-model plants. This review summarizes the recent findings on crop epigenetic responses to climate change and presents a speculative viewpoint on the underlying epigenetic mechanisms. Understanding these mechanisms will facilitate the design and cultivation of crop varieties with diverse tolerance/resistance to stresses.
FRONTIERS IN GENETICS
(2022)
Review
Plant Sciences
Ferenz Sustek-Sanchez, Odd Arne Rognli, Nils Rostoks, Merike Somera, Kristina Jaskune, Mallikarjuna Rao Kovi, Grazina Statkeviciute, Cecilia Sarmiento
Summary: To meet the growing demand for food and adapt to climate change, there is a need for high-yielding crops that can withstand abiotic stresses. Genome editing, particularly using the CRISPR-Cas system, has shown promise in developing stress-resistant plants. This review focuses on the application of genome editing in improving forage grasses' resilience to drought, salt, heat, and cold stresses.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Virology
Martin Frei, Cecilia Sarmiento, Kairi Kaerblane, Annette Niehl, Merike Somera
Summary: In this study, we sequenced four historical isolates of CnMoV from different hosts and locations. The CnMoV genome ranged from 4417 to 4419 nt and encoded five ORFs. Phylogenetic analysis showed that CnMoV belongs to the Sobemovirus genus. We found high similarity in nucleotide and amino acid sequences among the sequenced CnMoV isolates. Amino acid changes in the coat protein were associated with serological differences.
ARCHIVES OF VIROLOGY
(2023)
Article
Virology
A. Shchetynina, I. Budzanivska, O. Pereboychuk, M. Somera, E. Truve
Article
Virology
Merike Somera, Erkki Truve
ARCHIVES OF VIROLOGY
(2017)