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Perera RH, Maharachchikumbura SSN, Jones EG, Bahkali AH, Elgorban AM, Liu JK, Liu ZY, Hyde KD. Delonicicola siamensegen. & sp. nov. (Delonicicolaceaefam. nov., Delonicicolales ord. nov.), a Saprobic Species fromDelonix regiaSeed Pods. CRYPTOGAMIE MYCOL 2017. [DOI: 10.7872/crym/v38.iss3.2017.321] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rekhani H. Perera
- Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou Province 550006, P.R. China
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Sajeewa S. N. Maharachchikumbura
- Department of Crop Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, PO Box 34, Al Khoud 123, Oman
| | - E.B. Gareth Jones
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box: 2455, Riyadh, 1145, Saudi Arabia
| | - Ali H. Bahkali
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box: 2455, Riyadh, 1145, Saudi Arabia
| | - Abdallah M. Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box: 2455, Riyadh, 1145, Saudi Arabia
| | - Jian-Kui Liu
- Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou Province 550006, P.R. China
| | - Zuo-Yi Liu
- Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Academy of Agricultural Sciences, Guiyang, Guizhou Province 550006, P.R. China
| | - Kevin D. Hyde
- School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, China
- World Agroforestry Centre, East and Central Asia, 132 Lanhei Road, Kunming 650201, P.R. China
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Acero FJ, González V, Sánchez-Ballesteros J, Rubio V, Checa J, Bills GF, Salazar O, Platas G, Peláez F. Molecular phylogenetic studies on the Diatrypaceae based on rDNA-ITS sequences. Mycologia 2017. [DOI: 10.1080/15572536.2005.11832975] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | | | - Víctor Rubio
- Departamento de Biotecnología Microbiana, Centro Nacional de Biotecnología (CNB-CSIC), Campus Cantoblanco, Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - Julia Checa
- Departamento de Biología Vegetal, Universidad de Alcalá de Henares, Madrid 28871, Spain
| | | | | | | | - Fernando Peláez
- Centro de Investigación Básica, Merck Sharp and Dohme de España S. A., Josefa Valcárcel 38, Madrid 28027, Spain
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den Bakker HC, Gravendeel B, Kuyper TW. An ITS phylogeny of Leccinum and an analysis of the evolution of minisatellite-like sequences within ITS1. Mycologia 2017. [DOI: 10.1080/15572536.2005.11833001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Henk C. den Bakker
- Nationaal Herbarium Nederland, Universiteit Leiden branch, Phanerogams and Cryptogams of the Netherlands and Europe section, P.O. Box 9514, 2300 RA Leiden, The Netherlands
| | - Barbara Gravendeel
- Nationaal Herbarium Nederland, Universiteit Leiden branch, Molecular Systematics taskforce, P.O. Box 9514, 2300 RA Leiden, The Netherlands
| | - Thomas W. Kuyper
- Wageningen Agricultural University, Department of Environmental Sciences, Subdepartment of Soil Quality, P.O. Box 8005, 6700 EC Wageningen, The Netherlands
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Pazoutová S, Srutka P, Holusa J, Chudícková M, Kubátová A, Kolarík M. Liberomyces gen. nov. with two new species of endophytic coelomycetes from broadleaf trees. Mycologia 2011; 104:198-210. [PMID: 21937729 DOI: 10.3852/11-081] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
During a study of endophytic and saprotrophic fungi in the sapwood and phloem of broadleaf trees (Salix alba, Quercus robur, Ulmus laevis, Alnus glutinosa, Betula pendula) fungi belonging to an anamorphic coelomycetous genus not attributable to a described taxon were detected and isolated in pure culture. The new genus, Liberomyces, with two species, L. saliciphilus and L. macrosporus, is described. Both species have subglobose conidiomata containing holoblastic sympodial conidiogenous cells. The conidiomata dehisce irregularly or by ostiole and secrete a slimy suspension of conidia. The conidia are hyaline, narrowly allantoid with a typically curved distal end. In L. macrosporus simultaneous production of synanamorph with thin filamentous conidia was observed occasionally. The genus has no known teleomorph. Related sequences in the public databases belong to endophytes of angiosperms. Phylogenetic analysis revealed a position close to the Xylariales (Sordariomycetes), but family and order affiliation remained unclear.
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Affiliation(s)
- Sylvie Pazoutová
- Institute of Microbiology of the ASCR, Vídeňská 1083, Prague , Czech Republic.
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Vicente F, Basilio A, Platas G, Collado J, Bills GF, González Del Val A, Martín J, Tormo JR, Harris GH, Zink DL, Justice M, Nielsen Kahn J, Peláez F. Distribution of the antifungal agents sordarins across filamentous fungi. ACTA ACUST UNITED AC 2009; 113:754-70. [DOI: 10.1016/j.mycres.2009.02.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2008] [Revised: 01/10/2009] [Accepted: 02/18/2009] [Indexed: 10/21/2022]
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Repetitive sequences in the ITS1 region of the ribosomal DNA of Tunga penetrans and other flea species (Insecta, Siphonaptera). Parasitol Res 2007; 102:193-9. [DOI: 10.1007/s00436-007-0743-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2007] [Accepted: 08/21/2007] [Indexed: 10/22/2022]
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Cozzolino S, Cafasso D, Pellegrino G, Musacchio A, Widmer A. Molecular evolution of a plastid tandem repeat locus in an orchid lineage. J Mol Evol 2004; 57 Suppl 1:S41-9. [PMID: 15008402 DOI: 10.1007/s00239-003-0006-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The molecular evolution of a chloroplast minisatellite locus in the Anacamptis palustris (Orchidaceae) lineage and haplotype variation in two Italian A. palustris populations were investigated. A phylogenetic analyses of the chloroplast tRNA(LEU) intron, where the minisatellite locus is located, revealed that a deletion in the ancestor of the A. palustris lineage led to the formation of two noncontiguous, complementary sequence motifs. We propose a model to explain the initial formation of the minisatellite repeat motif, starting with the two noncontiguous, complementary sequence motifs. A survey of minisatellite variation in four species of the A. palustris lineage revealed several haplotypes that differed not only in repeat number, but also in repeat organization. A haplotype network suggests that three different minisatellite loci evolved independently at the same position in the tRNA(LEU) intron. A secondary structure model revealed that the A. palustris minisatellite repeat forms a stem region of the tRNA(LEU) intron, which allows its notable expansion without negatively affecting splicing. Minisatellite variation was high in the two examined A. palustris populations where 20 haplotypes were detected, whereas no length variation was detected in a neighboring poly (A) microsatellite locus. We estimated a chloroplast minisatellite mutation rate of 3.2 x 10(-3) mutations per generation. Southern blot analyses did not find evidence for chloroplast heteroplasmy. Based on the analysis of the largest known, extant A. palustris population, a stepwise mutation model (SMM) was inferred.
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Affiliation(s)
- Salvatore Cozzolino
- Dipartimento di Biologia Vegetale, Università degli Studi di Napoli Federico II, via Foria 223, 1-80139 Naples, Italy.
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Platas G, Ruibal C, Collado J. Size and sequence heterogeneity in the ITS1 of Xylaria hypoxylon isolates. ACTA ACUST UNITED AC 2004; 108:71-5. [PMID: 15035507 DOI: 10.1017/s0953756203008815] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
During a survey of 375 strains of the Xylariales, one isolate (F127076) was observed to have an ITS1 size of 833 bp. This size exceeds the average ITS1 size in the Xylariales (mean = 209 +/- 57 bp). Comparison of the DNA sequence with GenBank and with a proprietary DNA database revealed low homology with Xylaria hypoxylon ATCC 42768, and with one undescribed Xylaria species. When the ITS2 sequence was compared, these isolates were 96-98% homologous. Sequences of other variable genes confirmed the relatedness among these strains. A closer observation of the ITS sequence of this isolate revealed the presence of three repeated domains of 250 bp plus one truncated domain, showing 52-75% homology. Sequence similarity suggests that the repeated domain is derived from the fusion of the ITS1 with a DNA fragment derived from the gamma-glutamyltranspeptidase gene. This example suggests that the rate of evolution of ITS1 can be independent of the rate of evolution of other genes, even when this variability is not a result of slipped strand misspairing events like in other Xylariales. This observation also indicates that recombination with other nuclear genes could participate in the evolution of the internal transcribed spacer.
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Affiliation(s)
- Gonzalo Platas
- Centro de Investigacíon Básica, Merck Sharp & Dohme de España, S.A. Josefa Valcarcel 38, E-28027, Madrid, Spain.
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