胸膜的分子基因组包括九个新确定的线粒体基因组
Genki Kobayashi1, Hajime Itoh2, Nobuyoshi Nakajima2
1Ishinomaki Senshu University, Minamisakai, Ishinomaki, Miyagi 986-8580, Japan, genkikobayashi5884@gmail.com.
Zoological science
|May 31, 2023
概括
线粒体基因组分析澄清了胸膜的关系,揭示了Grapsoidea和Ocypodoidea的类属性. 新的线粒基因组为独特的基因序列和共生的位置提供了洞察力.
科学领域:
- 动物学 动物学
- 分子生物学分子生物学
- 进化生物学 进化生物学
背景情况:
- 线粒体基因组对于动物分子遗传学至关重要.
- 之前使用甲基乌兰 () 线粒基因组的研究解决了许多关系,但Thoracotremata内部的家族间联系仍然不清楚.
研究的目的:
- 通过使用线粒体基因组数据,解决Thoracotremata内部不清楚的家族间遗传关系.
- 为了确定来自各种胸膜动物家族的九个新的线粒基因组.
主要方法:
- 测序和分析了九个新的胸膜线粒基因组.
- 在三个数据集上使用贝叶斯推断和最大概率 (ML) 方法进行了基系学分析.
- 对基因序列和控制区域序列的比较分析.
主要成果:
- 确定了包括Camptandriidae,Dotillidae,Macrophthalmidae,Pinnotheridae,Plagusiidae和Percnidae在内的9个家族的新型线粒基因组.
- 在Ilyograpsus nodulosus,Arcotheres sp.和Indopinnixa haematosticta中发现了独特的基因序列.
- 遗传学分析始终表明了Grapsoidea和Ocypodoidea的副属性,支持了之前的分子发现. 共生的位置 (Pinnotheridae,Cryptochiridae) 在贝叶斯分析中显示出强烈的支持,但在ML分析中有所不同.
结论:
- 这项研究基于新的线粒体基因组数据,为胸腔外提供了强大的基因结构框架.
- 这进一步证实了Grapsoidea和Ocypodoidea的类属性.
- 未来的分析将纳入更多的胸膜线粒基因组,这将有助于更好地了解它们的进化历史.
相关概念视频
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.6K
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...
12.6K
Modern Molecular Taxonomy
57
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...
57
Evolutionary Relationships through Genome Comparisons
5.9K
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...
5.9K
Applications of Molecular Taxonomy
42
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
42
Animal Mitochondrial Genetics
7.7K
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...
7.7K
Phylogeny
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


