分子原生和形态学揭示了越南Cordyceps militaris综合体中的神秘物种
Yao Wang1,2, Quan-Ying Dong1,2, Run Luo1,2
1Yunnan Herbal Laboratory, College of Ecology and Environmental Sciences, Yunnan University, Kunming 650504, China.
Journal of fungi (Basel, Switzerland)
|June 27, 2023
概括
该研究在越南发现的Cordyceps militaris复合体内发现了两种新物种. 遗传学和形态学分析证实了这些新的真菌类与已知的Cordyceps militaris一起存在.
科学领域:
- 菌类学 菌类学是指菌类学.
- 昆虫学 昆虫学是一门学科.
- 生物多样性研究的研究.
背景情况:
- 科尔迪塞普斯军事复合体是一个多样化的真菌群体,分布广泛.
- 包括Cordyceps物种在内的关节动物致病菌在生态系统调节中起着至关重要的作用.
- 之前的研究已经强调了Cordyceps物种作为生物杀虫剂和生物活性化合物的来源的潜力.
研究的目的:
- 为了研究越南Cordyceps militaris综合体内的物种多样性.
- 识别和描述与类鸟宿主相关的新真菌种群.
- 为了提供有关科尔迪塞普斯物种的综合形态和遗传学比较.
主要方法:
- 从越南的国家保护区和公园收集真菌标本的现场采集.
- 多个基因区域的DNA提取和测序 (nrSSU,nrLSU,TEF,RPB1,RPB2).
- 用组合序列数据进行的家系学分析.
- 菌标本的形态特征和比较.
主要成果:
- 遗传学分析显示,收集的样本中存在Cordyceps militaris和两种以前未被描述的物种.
- 根据分子和形态学证据,正式描述了两种新的类型,Cordyceps polystromata和Cordyceps sapaensis.
- 在Cordyceps militaris复合体内对11种物种进行了比较分析,包括两种新型物种和9种已知的类型.
结论:
- 越南的Cordyceps militaris综合体的物种多样性比以前被认为的要大.
- 对Cordyceps polystromata和Cordyceps sapaensis的发现扩大了我们对该地区真菌生物多样性的理解.
- 这项研究为进一步对这些新发现的真菌物种进行生态和生化研究提供了基础.
更多相关视频
06:58Author Spotlight: Evaluation of Entomopathogenic Fungi in Wild Monochamus alternatus Populations for Biocontrol Applications in Forest Wood Borers
Published on: September 29, 2023
801
11:48Microscopy Techniques for Interpreting Fungal Colonization in Mycoheterotrophic Plants Tissues and Symbiotic Germination of Seeds
Published on: May 17, 2022
4.0K
相关概念视频
02:54Evolutionary Relationships through Genome Comparisons
5.8K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.8K
01:23Phylogeny
44.7K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
44.7K
01:29Modern Molecular Taxonomy
55
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
55
01:28Fungal Phylum Microsporidia
43
Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
43
03:21Phylogenetic Trees
45.7K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
45.7K
01:30Bacterial Phylum Actinobacteria
39
Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
39