Rapid evolution of novel genes in a desert-colonizing beetle lineage (Coleoptera: Tenebrionidae). Submitted to Genome Biology on 05022020
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| Title: | Main Title: Rapid evolution of novel genes in a desert-colonizing beetle lineage (Coleoptera: Tenebrionidae). Submitted to Genome Biology on 05022020 |
| Description: | Abstract: Background: With more than 20,000 species, the beetle family Tenebrionidae (Insecta: Coleoptera) is one of the most species-rich animal families. Unique among animals, their species diversity grows with increasing aridity, and several lineages within this family independently colonized arid ecosystems across the world. Results: To identify genetic factors that favour the transition to desert environments in tenebrionids, we assembled a large dataset of 88 transcriptomes. The dataset comprehensively covers the insect order Coleoptera and includes 34 newly generated transcriptomes from tenebrionid beetles. Employing large scale comparative genomics and orthology clustering, we extracted from the sequence data 81 genes that originated in the ancestor of tenebrionids and are absent in other organisms. The 81 genes possess protein coding capacity and are universally present, expressed, and conserved across >100 million years of tenebrionid evolution. They show a regular size distribution and low exon count, but frequently lack similarity to known protein domains, protein-coding genes, and potential gene duplication source loci. The identified genes further display a high rate of non-synonymous substitutions when compared to ancient single-copy genes. In particular, we find in a subset of tenebrionid-specific genes a significant enrichment of non-synonymous substitutions along several branches leading to desert-dwelling species. Conclusions: Together, these findings suggest that the evolution of tenebrionids is accompanied by the origin of a large number of novel genes that evolve at fast rates particularly in desert-colonizing beetles and might thus contribute to the adaptation of this beetle family to extreme environments. |
| Citation Advice: | Heger P, Ragionieri L, Predel R, and Wiehe T. Rapid evolution of novel genes in a desert-colonizing beetle lineage (Coleoptera: Tenebrionidae). Submitted. |
Responsible Party
| Creators: | Peter Heger (Author), Lapo Ragionieri (Author), Reinhard Predel (Author), Thomas Wiehe (Author) |
| Contributors: | Lapo Ragionieri (Researcher), Reinhard Predel (Project Leader), Thomas Wiehe (Project Leader) |
| Funding Reference: | Deutsche Forschungsgemeinschaft (DFG): CRC 1211: Earth - Evolution at the Dry Limit |
| Publisher: | Springer Nature |
| Publication Year: | 2020 |
Topic
| CRC1211 Topic: | Biology |
| Related Subproject: | B3 |
| Subjects: | Keywords: Evolution, Insects |
| Geogr. Information Topic: | Biota |
File Details
| Filename: | beetleblast7_gb.pdf |
| Data Type: | Text - Article |
| File Size: | 5.3 MB |
| Date: | Submitted: 05.02.2020 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | In Process |
Constraints
| Download Permission: | Only Project Members |
| General Access and Use Conditions: | According to the CRC1211DB data policy agreement. |
| Access Limitations: | According to the CRC1211DB data policy agreement. |
| Licence: | [Creative Commons] Attribution 4.0 International (CC BY 4.0) |
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Specific Information - Publication
| Publication Status: | Submitted |
| Review Status: | Not peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | Genome Biology |
| Number of Pages: | 45 (1 - 45) |
Metadata Details
| Metadata Creator: | Peter Heger |
| Metadata Created: | 06.02.2020 |
| Metadata Last Updated: | 06.02.2020 |
| Subproject: | B3 |
| Funding Phase: | 1 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Page Visits: | 316 |
| Metadata Downloads: | 0 |
| Dataset Downloads: | 2 |
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