根据ITS的基因,基因组学,形态学,生态学和地理分布来确定11种报告的和5种新型的Podaxis物种
G S Li1, C A Leal-Dutra1, A Cuesta-Maté1
1Section for Ecology and Evolution, Department of Biology, University of Copenhagen, 2100 Copenhagen East, Denmark.
Persoonia
|April 26, 2024
概括
这项研究澄清了真菌属Podaxis的分类学,通过分子和形态分析确定了至少16种物种. 它解决了以前的模两可,确认了四种物种,复活了一种,并描述了五种新物种.
科学领域:
- 菌类学 菌类学是指菌类学.
- 系统植物学 系统植物学
- 分子遗传学分子遗传学
背景情况:
- 在历史上, *Podaxis* 属的分类学一直不清楚,许多物种名称和标本经常被误认为是 *Podaxis pistillaris *.
- 以前的分子研究表明,Podaxis内部的物种多样性较高,但缺乏确认物种地位的解决方案.
研究的目的:
- 通过整合家族遗传学,家族遗传学,形态学,生态学和地理数据来解决Podaxis属*中的分类学模两可.
- 提供"Podaxis"的全面分类修订,包括新物种的描述和现有物种的澄清.
主要方法:
- 通过使用来自166个真菌体标本的rDNA内部转录间隔器 (ITS) 序列生成了家族遗传树.
- 使用3,839个来自标本子集低覆盖基因组的BUSCO基因进行了基因组学分析.
- 将分子数据与形态,生态和地理分布数据结合起来,用于分类学评估.
主要成果:
- 该研究提出,Podaxis属至少包括16种不同的物种.
- 证实了四种以前描述的物种 (*P. carcinomalis*, *P. deflersii*, *P. emerici*, *P. farlowii*) 的存在.
- 一种物种 (*P. termitophilus*) 被复活,五种新物种 (*P. desolatus*, *P. inyoensis*, *P. mareebaensis*, *P. namaquensis*, *P. namibensis*) 被描述,三种物种被同义为 *P. pistillaris*.
结论:
- 综合方法成功地解决了Podaxis属的分类学,揭示了比以前认可的更大的物种多样性.
- 这一修订为*Podaxis*提供了一个强大的分类学框架,基于广泛的数据和类型样本检查.
- 这些发现强调了结合多个数据源对于准确的真菌物种划界的重要性.
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