关于Cephalotrichum和Microascus的综合分子系谱,为它们的系统学和进化历史提供了新的见解
T P Wei1, Y M Wu2,3, X Zhang1,4
1Department of Plant Pathology, College of Agriculture, Guizhou University, Guiyang, 550025, Guizhou Province, China.
Persoonia
|August 20, 2024
概括
这项研究使用多基因数据解决了Cephalotrichum和Microascus的真菌系谱,证实了它们的分类并揭示了进化时间表. 它提供了全面的分类学概述,并描述了Microascaceae中的新物种.
科学领域:
- 菌类学 菌类学是指菌类学.
- 分子遗传学分子遗传学
- 进化生物学 进化生物学
背景情况:
- 在Microascaceae中,属Cephalotrichum和Microascus是多种多样的,但它们的族系解决不良.
- 之前的研究表明多类性,需要全面的分类学和遗传学概述.
研究的目的:
- 解决Microascaceae中主要血统的遗传关系和分歧时间.
- 为Cephalotrichum和Microascus中的物种提供最新的分类学概述.
主要方法:
- 综合广泛的分类样本采用多基因数据集 (ITS,LSU,tef1,tub2).
- 利用化石校准来估计分歧时间.
- 进行了植物遗传学分析,以重新确认主要的克拉德和属位置.
主要成果:
- 确认了两个主要的分类,Cephalotrichum (24种) 和Microascus (49种).
- 澄清了Microascaceae中15个属的遗传学位置.
- 估计Microascaceae的冠冕年龄在约210.37万年前,Cephalotrichum和Microascus的多样化分别在约27.07万年前和70.46万年前.
- 描述了21种物种,包括8种新物种.
结论:
- 多基因序列数据和广泛的分类型采样有效地解决了复杂的家族遗传关系.
- 这项研究为Cephalotrichum和Microascus提供了强大的分子系谱,增强了对它们的系统理解.
- 已确立的进化时间线为Microascaceae的多样化历史提供了洞察力.
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