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Open AccessArticle

Phylogenetic Characterization of Botryosphaeria Strains Associated with Asphondylia Galls on Species of Lamiaceae

1
Department of Plant Protection, University of Life Sciences, 20-068 Lublin, Poland
2
Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences, 20-068 Lublin, Poland
3
Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
4
Council for Agricultural Research and Economics, Research Centre for Olive, Citrus and Tree Fruit, 81100 Caserta, Italy
*
Author to whom correspondence should be addressed.
Diversity 2020, 12(2), 41; https://doi.org/10.3390/d12020041
Received: 20 December 2019 / Revised: 19 January 2020 / Accepted: 20 January 2020 / Published: 21 January 2020
(This article belongs to the Special Issue Fungal Diversity in the Mediterranean Area)
In the last decade, Botryosphaeria dothidea has been steadily reported as an associate of gall midges (Diptera, Cecidomyiidae) in a variety of host plants and ecological settings. This cosmopolitan fungus is well-known for its ability to colonize many plant species, as both a pathogen and an endophyte. Thus, the shift from this general habit to a lifestyle involving a strict symbiotic relationship with an insect introduces expectancy for possible strain specialization which could reflect separated phylogenetic lineages. Considering the recent taxonomic revision concerning species of Botryosphaeria, we evaluated the phylogenetic relationships among strains recovered from Asphondylia galls collected on several species of Lamiaceae in Poland and in Italy, and all the currently accepted species in this genus. A number of strains previously characterized from gall samples from Australia and South Africa, whose genetic marker sequences are deposited in GenBank, were also included in the analysis. As a result, full identity as B. dothidea is confirmed for our isolates, while strains from the southern hemisphere grouped separately, indicating the existence of genetic variation related to the geographic origin in the association with gall midges. View Full-Text
Keywords: Asphondylia; Botryosphaeria; B. dothidea; DNA sequencing; gall-associated fungi; Lamiaceae; phylogenetic relationships; symbiosis Asphondylia; Botryosphaeria; B. dothidea; DNA sequencing; gall-associated fungi; Lamiaceae; phylogenetic relationships; symbiosis
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Zimowska, B.; Okoń, S.; Becchimanzi, A.; Krol, E.D.; Nicoletti, R. Phylogenetic Characterization of Botryosphaeria Strains Associated with Asphondylia Galls on Species of Lamiaceae. Diversity 2020, 12, 41.

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