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Comparative genomics and evolutionary analysis of hydrophobins from three species of wood-degrading fungi

机译：三种木材降解真菌疏水蛋白的比较基因组学和进化分析

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摘要

Hydrophobins are small, secreted proteins playing important roles at different stages of fungal life cycles. Their characteristic feature is the presence of eight highly conserved cysteine residues. Here we present an inventory and evolutionary analysis of hydrophobin genes from three wood-degrading basidiomycetes, Phlebia brevispora, Ganoderma sp. and Bjerkandera adusta. The genomes of the three analyzed species are characterized by the presence of high copy numbers of hydrophobin genes. Results of the phylogenetic analysis of the identified proteins revealed that many of them share a high degree of sequence similarity and probably originated from a series of duplication events. The presence of several clusters of adjacent copies of the hydrophobin gene in a particular location in the genome further supports the interpretation that gene duplication has played a role in the evolution of hydrophobins in the analyzed species.
机译：疏水蛋白是分泌的小蛋白，在真菌生命周期的不同阶段起着重要作用。它们的特征是存在八个高度保守的半胱氨酸残基。在这里，我们介绍从三个木材降解的担子菌，灯盏草，灵芝菌的疏水蛋白基因的清单和进化分析。和Bjerkandera adusta。这三个被分析物种的基因组的特征是疏水蛋白基因拷贝数高。对鉴定出的蛋白质进行系统发育分析的结果表明，其中许多蛋白质具有高度的序列相似性，并且可能起源于一系列重复事件。疏水蛋白基因的相邻拷贝在基因组中特定位置的几个簇的存在进一步支持了以下解释：基因重复在所分析物种中疏水蛋白的进化中发挥了作用。

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