ArticleMolecular genetics and genomics : MGG2020
Phylogenetic analysis of achaete-scute complex genes in metazoans.
Article in Molecular genetics and genomics : MGG, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 1 citations in OpenAlex.
- Neurogenesis in the trunk and brain of the milkweed bug Oncopeltus fasciatus: insights beyond holometabolan models.Frontiers in zoology · 2025Article
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7 authors at 1 institution in 1 country.
Funding
Abstract
Achaete-scute complex (ASC) genes play essential roles in regulating neurogenesis of metazoans. Various metazoan species have greatly different numbers of genes in ASCa, ASCb and ASCc families. To explore evolutionary mechanisms of metazoan ASC genes, Blast (basic local alignment search tool) searches and phylogenetic analyses were conducted to identify ASC genes in metazoan species and to infer phylogenetic relationship between various ASC genes. As a result, 2784 ASC genes were identified in 804 metazoan species. The phylogenetic tree constructed using 1237 unique bHLH motifs shows that metazoan ASCa, ASCb and ASCc families contain six (a1-a6), five (b1-b5) and three (c1-c3) bHLH genes, respectively. Further phylogenetic analyses suggest that ASC genes in metazoans are derived from a primitive c gene, those in insects are derived from c2 gene, and those in chordates are derived from a2 and a3 genes. Data of gene linkage demonstrate that insect a6 is derived from a4 but not from a5, and chordate a2 is ancestral to b5 only, whilst a3 is ancestral to both b3 and b5. It is concluded that current ASC gene families in metazoans were established through a series of sub- and/or neo-functionalization to duplicated ancestral ASC gene(s). These results provide good references for exploring evolutionary mechanisms of other bHLH genes in metazoans. Besides, gene subtyping is considered as an efficient method for evolutionary studies on closely related homologous genes.
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