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基于转录组数据和短序列测序的系统发育研究方法 (Phylogenomics based on transcriptomics and short-read sequences)

## 摘要 明确的系统发育关系 (phylogeny) 是分类学、进化事件的推断及时间校正、相关性状的祖先状态构建等的重要基础和前提。在明确了不同支系的系统发育关系的前提下,通过分析比较性状在不同类群中的演化历史,可以了解物种经受了哪些选择压力,不同性状是否倾向于共同演化或只是对相同选择压力的适应。自高通量短序列测序技术出现以后,通过广泛采样及使用大规模数据集来研究不同类群的系统发育关系的方法已经成为共识。但由于大规模全基因组测序成本高、分析难度大,简化基因组测序仍具有广泛应用前景。其中,利用转 …

Four myriapod relatives – but who are sisters? No end to debates on relationships among the four major myriapod subgroups

## Background Phylogenetic relationships among the myriapod subgroups Chilopoda, Diplopoda, Symphyla and Pauropoda are still not robustly resolved. The first phylogenomic study covering all subgroups resolved phylogenetic relationships congruently to …

Phylogenomic analysis sheds new light on the evolutionary pathways towards acoustic communication in Orthoptera

Acoustic communication is enabled by the evolution of specialised hearing and sound producing organs. In this study, we performed a large-scale macroevolutionary study to understand how both hearing and sound production evolved and affected …

Book chapter: From reads to Genes

Book name: Transcriptomics in entomological research While "genomics" is becoming a household term, knowing the genome of an organism alone provides relatively little information. Between the genome and the final organism is the "transcriptome" that …

Characterization of viral RNA splicing using whole-transcriptome datasets from host species

RNA alternative splicing (AS) is an important post-transcriptional mechanism enabling single genes to produce multiple proteins. It has been well demonstrated that viruses deploy host AS machinery for viral protein productions. However, knowledge on …

Phylogenomics resolves the timing and pattern of insect evolution

Insects are the most speciose group of animals, but the phylogenetic relationships of many major lineages remain unresolved. We inferred the phylogeny of insects from 1478 protein-coding genes. Phylogenomic analyses of nucleotide and amino acid …