Leptographium wushanense sp. nov., associated with Tomicus armandii on Pinus armandii in Southwestern China |
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| Affiliation: | 1. Laboratory of Biological Invasion and Ecosecurity, Yunnan University, Kunming, 650091, China;2. China Eco-development Academy, Southwest Forestry University, Kunming, 650224, China;3. FuturaGene Biotechnology (Shanghai) Co., Ltd., Shanghai, 200233, China;4. Yunnan Academy of Forestry, Kunming, 650201, China;1. Laboratory of Plant Pathology, Institute of Plant Pathology, Jilin Agricultural University, Changchun 13, 130118, Jilin Province, PR China;2. Martin-Luther-Universität, Institut für Biologie, Bereich Geobotanik und Botanischer Garten, Neuwerk 21, 06099, Halle, Saale, Germany;1. Universidad Politécnica de Pachuca, Carretera Pachuca-Cd. Sahagún km 20 Ex-Hacienda de Santa Bárbara, Zempoala, Hidalgo, CP 42184, Mexico;2. Laboratorio de Genética Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Col. Santo Tomás, Del. Miguel Hidalgo, Ciudad de, C.P. 11340, Mexico;1. Graduate school of Infection Control Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo, 108-8641, Japan;2. Kitasato Institute for Life Sciences, Kitasato University, 5-9-1, Shirokane, Minato-ku, Tokyo, 108-8641, Japan;1. Faculty of Education, Ibaraki University, Mito, Ibaraki, 310-8512, Japan;2. Syngenta Crop Protection Thailand Ltd., Bangkok, 10310, Thailand;3. Ishikawa Prefectural University, 1-308, Suematsu, Nonoichi, Ishikawa, 921-8836, Japan |
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| Abstract: | Leptographium wushanense sp. nov., which is associated with Tomicus armandii, is described based on molecular sequence data and morphological characters. The phylogenetic analyses based on ITS2-partial LSU rDNA region, β-tubulin and elongation factor 1-α genes showed that L. wushanense formed a well-supported clade and was closely related to L. conjunctum and L. yunnanense, and then nested within L. lundbergii complex. The species is characterized that its conidiophores were longer than those of L. yunnanense and shorter than those of L. conjunctum, while its conidia were larger than those of L. conjunctum and smaller than those of L. yunnanense. Furthermore, the colonial growth of L. wushanense is faster than those of L. conjunctum and L. yunnanense at 25 °C on 2% MEA. Both molecular data and morphological comparison confirmed the placement of the new species in genus of Leptographium. |
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| Keywords: | Molecular phylogeny Morphology Ophiostomataceae Taxonomy |
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