根据形态学和遗传学方法重新定义Corollospora属
Pedro Correia1, Egídia Azevedo1,2, Maria F Caeiro2
1Centro de Ecologia, Evolução e Alterações Climáticas (ce3c), Faculdade de Ciências da Universidade de Lisboa (FCUL), DBV, C2, Campo Grande, 1749-016 Lisboa, Portugal.
Journal of fungi (Basel, Switzerland)
|August 25, 2023
概括
这项研究使用分子数据重新分类了Corollospora真菌属,建立了新的属和物种,以改善真菌分类学. 它提供了对海洋真菌的新分类学见解,有助于物种和基因歧视.
科学领域:
- 菌类学:真菌分类学和系统学.
- 分子生物学:遗传学分析和DNA测序.
- 海洋生物学:研究与海洋相关的真菌.
背景情况:
- 菌类Corollospora,特别是Corollospora maritima,含有神秘的物种,这对准确的分类学分类构成了挑战.
- 现有的分类学方法不足以解决Corollospora中的物种和基因界限.
- 分子遗传学分析对于理解真菌多样性和进化关系至关重要.
研究的目的:
- 在Corollospora属中,在物种和基因层面建立明确的分类学歧视标准.
- 解决Corollospora maritima中的神秘物种,并重新定义Corollospora属.
- 为准确分类Corollospora物种引入新的属和组合.
主要方法:
- 进行了核核核糖核细胞核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核核
- 在对齐的序列上进行了双对距离评估,贝叶斯式和最大概率的基因分析.
- 利用了类型菌株的形态描述和来自355个已发表的序列的分子数据,包括268个Corollospora分离物.
主要成果:
- 对于物种 (≥3% ITS/1% 28S) 和通用 (≥8% ITS/2% 28S) 分离而建立的p-距离值.
- 引入了10个新属和13个现有的Corollospora物种的新组合,包括Ajigaurospora pseudopulchella和Corollosporella anglusa.
- 确定了7个假设的新属和16个假设的新物种,需要进一步的形态和分子研究.
结论:
- 该研究通过建立强大的分类学歧视分子标准,成功地重新定义了Corollospora属.
- 提出的新属和组合为研究的海洋真菌提供了更准确的分类.
- 需要进一步的研究,以充分描述新发现的假定属和物种.
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