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Comparative analysis of mitochondrial genomes in Ceratocystis fimbriata complex across diverse hostsSyazwan, Samsuddin Ahmad; Mohd-Farid, Ahmad; Yih Lee, Shiou; Mohamed, Rozi
Gene, 08/2024, Letnik: 921Journal Article
•Similar structures are found in FRIM1162 and FRIM1441 mitochondrial genomes.•ORF position differences suggest mitochondrial genome rearrangement.•Different intron patterns in Ceratocystis fimbriata mitochondrial genomes.•The mitochondrial uniformity gene organisation and key mutations are observed.•FRIM1162 and FRIM1441 are monophyletic C. fimbriata complex group. The decline ofAcacia mangiumWilld. in Malaysia, especially in Sabah since 2010, is primarily due to Ceratocystiswilt and canker disease (CWCD) caused by theCeratocystis fimbriataEllis & Halst. complex. This study was aimed to investigate the mitochondrial genome architecture of two differentC. fimbriatacomplex isolates from Malaysia: one fromA. mangiumin Pahang (FRIM1162) and another fromEucalyptus pellitain Sarawak (FRIM1441). This research employed Next-Generation Sequencing (NGS) to contrast genomes from diverse hosts with nine additional mitochondrial sequences, identifying significant genetic diversity and mutational hotspots in the mitochondrial genome alignment. The mitochondrial genome-based phylogenetic analysis revealed a significant genetic relationship between the studied isolates and theC. fimbriatacomplex in the South American Subclade, indicating that theC. fimbriatacomplex discovered in Malaysia isC. manginecans. The comparative mitochondrial genome demonstrates the adaptability of the complex due to mobile genetic components and genomic rearrangements in the studiedfungal isolates. This research enhances our knowledge of the genetic diversity and evolutionary patterns within theC. fimbriatacomplex, aiding in a deeper understanding of fungal disease development and host adaption processes. The acquired insights are crucial for creating specific management strategies for CWCD, improving the overall understanding of fungal disease evolution and control.
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