クライステネス・ヘルゼンステイニ (Pleuronectiformes: Pleuronectidae) の完全なミトコンドリアゲノムからの組み立て,特徴化,および系統遺伝的洞察
Guangliang Teng1,2, Yue Miao1, Yongsong Zhao1,2
1Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
Biology
|February 12, 2026
まとめ
商業的に重要なフラットフィッシュ (Cleisthenes herzensteini) の最初の完全なミトコンドリアゲノム配列が決定されました. これは,その進化,集団遺伝学,および保全のニーズを理解するための重要な遺伝資源を提供します.
科学分野:
- マリン・バイオロジー マリン・バイオロジー
- ゲノミクスゲノミクスとは
- 進化生物学の進化生物学について
背景:
- Cleisthenes herzensteiniは,人口減少に直面している商業的に重要な地底魚です.
- ベンシック適応の分子機構は十分に理解されていない.
- ミトコンドリアゲノムを用いた集団レベルの研究は稀である.
研究 の 目的:
- クレイステネス・ヘルゼンステイニの完全なミトコンドリアゲノムをシーケンス化し,組み立て,注釈する.
- 保護と系統遺伝学研究のための重要な遺伝資源を提供すること.
- 集団遺伝学と進化的関係を調査する.
主な方法:
- ミトコンドリアゲノムの全ゲノム配列決定と組み立て.
- 繰り返し配列の識別とコドン使用を含むバイオ情報分析.
- 23種のミトコンドリアゲノムを用いた系統再構築.
主要な成果:
- C. herzensteiniの完全なミトコンドリアゲノムは,A+Tバイアスで17,171 bpである.
- 35の分散繰り返しを特定し,コドン使用パターンを分析した.
- 系統遺伝学的分析により,C. herzensteiniはDexistes rikuzeniusと密接に関連しており,Hippoglossoides dubiusとLimanda asperaと別々のクラードを形成していることが明らかになった.
結論:
- この研究は,クレイステネス・ヘルゼンステイニ (Cleisthenes herzensteini) の最初の完全なミトコンドリアゲノム配列を提供する.
- このデータは,この種の遺伝資源の重要なギャップを埋めています.
- この結果は,Pleuronectiformesの進化の理解を支えており,Pleuronectidae家族に関する将来の研究のための参考文献を提供します.
キーワード:
クレイステネス・ヘルツェンステイニミトコンドリアのゲノムフィロゲニーとはpleuronectiformes pleuronectiformes pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleuronectiformes Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones Pleurones関連する概念動画
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
17.0K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
17.0K
Genome Annotation and Assembly
21.1K
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
21.1K
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
Phylogenetic Trees
49.9K
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.
49.9K
Export of Mitochondrial and Chloroplast Genes
4.2K
A eukaryotic cell can have up to three different types of genetic systems: nuclear, mitochondrial, and chloroplast. During evolution, organelles have exported many genes to the nucleus; this transfer is still ongoing in some plant species. Approximately 18% of the Arabidopsis thaliana nuclear genome is thought to be derived from the chloroplast’s cyanobacterial ancestor, and around 75% of the yeast genome derived from the mitochondria’s bacterial ancestor. This export has occurred...
4.2K
Animal Mitochondrial Genetics
9.3K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.3K


