对与埃斯卡相关的基枝孢霉 Fomitiporia mediterranea、Fomitiporia polymorpha、Inonotus vitis 和 Tropicoporus texanus 的基因组分析显示了白腐真菌特有的毒力因子再现。

IF 2.1 3区 生物学 Q3 GENETICS & HEREDITY G3: Genes|Genomes|Genetics Pub Date : 2024-10-07 DOI:10.1093/g3journal/jkae189
Jadran F Garcia, Rosa Figueroa-Balderas, Gwenaëlle Comont, Chloé E L Delmas, Kendra Baumgartner, Dario Cantu
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引用次数: 0

摘要

一些担子菌属真菌是重要的植物病原体,某些种类与葡萄树干病 esca 相关。我们展示了与 esca 相关的四个物种的基因组:Fomitiporia mediterranea、Fomitiporia polymorpha、Tropicoporus texanus 和 Inonotus vitis。我们利用长线程测序技术生成了高质量的分阶段基因组组装。基因组和功能比较确定了潜在的毒力因子,表明它们在疾病发展中的作用。与其他以降解木质纤维素基质而闻名的白腐真菌类似,这四种真菌的基因组编码了多种木质素过氧化物酶和碳水化合物活性酶(CAZymes),如 CBM1、AA9 和 AA2。对基因家族扩展和收缩的分析揭示了动态的进化模式,特别是与次生代谢物生产、植物细胞壁分解和异生物降解有关的基因。这些基因组将为进一步研究毒力因子的多样性和进化及其在埃斯卡症状和宿主抗性中的作用提供参考。
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Genome analysis of the esca-associated Basidiomycetes Fomitiporia mediterranea, Fomitiporia polymorpha, Inonotus vitis, and Tropicoporus texanus reveals virulence factor repertoires characteristic of white-rot fungi.

Some Basidiomycete fungi are important plant pathogens, and certain species have been associated with the grapevine trunk disease esca. We present the genomes of 4 species associated with esca: Fomitiporia mediterranea, Fomitiporia polymorpha, Tropicoporus texanus, and Inonotus vitis. We generated high-quality phased genome assemblies using long-read sequencing. The genomic and functional comparisons identified potential virulence factors, suggesting their roles in disease development. Similar to other white-rot fungi known for their ability to degrade lignocellulosic substrates, these 4 genomes encoded a variety of lignin peroxidases and carbohydrate-active enzymes (CAZymes) such as CBM1, AA9, and AA2. The analysis of gene family expansion and contraction revealed dynamic evolutionary patterns, particularly in genes related to secondary metabolite production, plant cell wall decomposition, and xenobiotic degradation. The availability of these genomes will serve as a reference for further studies of diversity and evolution of virulence factors and their roles in esca symptoms and host resistance.

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来源期刊
G3: Genes|Genomes|Genetics
G3: Genes|Genomes|Genetics GENETICS & HEREDITY-
CiteScore
5.10
自引率
3.80%
发文量
305
审稿时长
3-8 weeks
期刊介绍: G3: Genes, Genomes, Genetics provides a forum for the publication of high‐quality foundational research, particularly research that generates useful genetic and genomic information such as genome maps, single gene studies, genome‐wide association and QTL studies, as well as genome reports, mutant screens, and advances in methods and technology. The Editorial Board of G3 believes that rapid dissemination of these data is the necessary foundation for analysis that leads to mechanistic insights. G3, published by the Genetics Society of America, meets the critical and growing need of the genetics community for rapid review and publication of important results in all areas of genetics. G3 offers the opportunity to publish the puzzling finding or to present unpublished results that may not have been submitted for review and publication due to a perceived lack of a potential high-impact finding. G3 has earned the DOAJ Seal, which is a mark of certification for open access journals, awarded by DOAJ to journals that achieve a high level of openness, adhere to Best Practice and high publishing standards.
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