Characterization of beta-tubulin DNA sequences within Candida parapsilosis complex

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Kharazi Mahboobeh; Ahmadi Bahram; MAKIMURA KOICHI; FARHANG ARMIN; KIANIPOUR SAHAR; Motamedi Marjan; MIRHENDI HOSSEIN

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Journal: Current Medical Mycology Year:2018 | Volume:4 | Issue:1 Page(s): 24-29

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Title

Characterization of beta-tubulin DNA sequences within Candida parapsilosis complex

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Keywords

Beta-tubulin

Candida parapsilosis

Sequence analysis

Abstract

Background and Purpose: Candida parapsilosis is a common cause of candidemia in children and patients with onco-hematological diseases, septic arthritis, peritonitis, vaginitis, and nail and skin infections. Regarding this, the present study was condcuted to evaluate intra-and inter-species variation within Beta-tubulin DNA sequence of C. parapsilosis complex in order to establish the utilization of this gene in the identification and phylogenetic analysis of the species. Materials and Methods: A total of 23 isolates representing three different species of C. parapsilosis complex were used in this study, all of which were identifed by ITS-sequencing. For the successful amplification of Beta-tubulin gene, a newly designed set of pan-Candida primers was used, followed by bilaterally Sequence analysis for pairwise comparisons, determination of multiple alignments, evaluation of sequence identity levels, counting sequence difference, and construction of phylogenetic tree. Results: The multiple alignment of 623-629 bp-long nucleotide (nt) sequences reflecting the Beta-tubulin gene indicated an inter-species divergence ranging within 0-68 nt in C. parapsilosis, C. orthopsilosis, and C. metapsilosis with a mean similarity of 84. 7% among the species. Meanwhile, the intra-species differences of 0-20 and 0-6 nt were found between the strains of C. parapsilosis and C. orthopsilosis, respectively. The phylogenetic tree topology was characterized by a clade made up by C. parapsilosis and C. orthopsilosis, while C. metapsilosis formed a related but separate lineage. Conclusion: Our data provided the basis for further discoveries of the relationship between the species belonging to C. parapsilosis complex. Furthermore, the findigns of the prsent study revealed the efficiency of Beta-tubulin DNA sequence data in the identification and taxonomy of C. parapsilosis and other pathogenic yeasts.

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APA: Copy

Kharazi, Mahboobeh, Ahmadi, Bahram, MAKIMURA, KOICHI, FARHANG, ARMIN, KIANIPOUR, SAHAR, Motamedi, Marjan, & MIRHENDI, HOSSEIN. (2018). Characterization of beta-tubulin DNA sequences within Candida parapsilosis complex. CURRENT MEDICAL MYCOLOGY, 4(1), 24-29. SID. https://sid.ir/paper/767494/en

Vancouver: Copy

Kharazi Mahboobeh, Ahmadi Bahram, MAKIMURA KOICHI, FARHANG ARMIN, KIANIPOUR SAHAR, Motamedi Marjan, MIRHENDI HOSSEIN. Characterization of beta-tubulin DNA sequences within Candida parapsilosis complex. CURRENT MEDICAL MYCOLOGY[Internet]. 2018;4(1):24-29. Available from: https://sid.ir/paper/767494/en

IEEE: Copy

Mahboobeh Kharazi, Bahram Ahmadi, KOICHI MAKIMURA, ARMIN FARHANG, SAHAR KIANIPOUR, Marjan Motamedi, and HOSSEIN MIRHENDI, “Characterization of beta-tubulin DNA sequences within Candida parapsilosis complex,” CURRENT MEDICAL MYCOLOGY, vol. 4, no. 1, pp. 24–29, 2018, [Online]. Available: https://sid.ir/paper/767494/en

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