Starshipを介した真菌ゲノムにおけるトランスポゾンエレメントの乗り入れ
Hanne Griem-Krey1, Júlia de Fraga Sant'Ana2, Ursula Oggenfuss3
1Fungal Evolutionary Genetics, Christian-Albrechts University of Kiel, Kiel, Germany.
Nature communications
|February 11, 2026
まとめ
Starshipと呼ばれる大きなトランスポゾンは、真菌におけるトランスポゾンエレメント(TE)の水平伝播を促進する。この伝播は、遺伝的多様性やTE活性の急増を引き起こし、病原性などの真菌の形質に影響を与える可能性がある。
科学分野:
- 遺伝学; mycology; 進化生物学
背景:
- トランスポゾンエレメント(TE)の水平伝播は、真核生物における遺伝的多様性の重要な駆動力である。TE活性は、進化の急増やゲノム変化と関連することが多い。
研究 の 目的:
- 昆虫病原性真菌Metarhizium anisopliaeにおける最近のトランスポゾンエレメント(TE)の急増を調査すること。Starshipが真菌種間のTE水平伝播を媒介する役割を決定すること。
主な方法:
- Metarhizium anisopliaeにおけるTE活性とゲノム構造の分析。522の真菌種にわたるStarshipエレメントの比較ゲノミクス。Starshipに関連するTEと水平伝播の兆候の同定。
主要な成果:
- Metarhizium anisopliaeにおける最近のTEの急増が特定され、Starshipを介した活発なトランスポゾン化TEの導入に関連していた。このTEの急増は、広範な染色体再編成と病原性の喪失と相関していた。Starshipは、真菌におけるTE水平伝播の一般的なベクトルであることが判明し、75%がTEを宿し、多くが最近の急増活動を示していた。
結論:
- Starshipは、真菌における水平TE伝播の主要なベクトルである。Starshipを介したTE伝播は、重大なゲノム変化につながり、病原性を含む真菌の形質に影響を与える可能性がある。Starship-TE相互作用の理解は、真菌ゲノムの進化と適応に関する洞察を提供する。
関連する概念動画
Elements and Compounds
105.4K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
105.4K
Periodic Classification of the Elements
59.9K
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
59.9K
Genomics
40.9K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
40.9K
Classification of Elements and Compounds
73.6K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
73.6K
Key Elements for Plant Nutrition
24.4K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.4K
Elements: Chemical Symbols and Isotopes
127.3K
A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
127.3K


