The Spatiotemporal evolutionary dynamics of crickets and their influencing factors (Orthoptera; Ensifera) Article Swipe
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· 2035
· Open Access
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· DOI: https://doi.org/10.5281/zenodo.17556680
The mechanisms underlying the formation of species diversity have remained a subject of intense debate. In this study, we used Gryllidea (crickets) as a representative lineage and employed a phylogenetic comparative framework based on a robust phylogeny reconstructed from ultraconserved elements, mitochondrial genomes, nuclear ribosomal genes, DNA barcodes, and morphological traits. Our spatiotemporal evolutionary analyses indicate Gryllidea originated in the Early Jurassic, diverging into Grylloidea and Gryllotalpoidea, with marked increases in diversification rates at the ancestral node of Grylloidea and within Trigonidiinae and Goniogryllus of Gryllinae. Most species within these rapidly diversifying clades are distributed in the Oriental and Sino-Japanese regions. Integrating biotic (genomic and morphological) and abiotic (climatic and geographic) factors, we reveal that cricket diversification results from synergistic interactions of multiple factors, with biotic factors exerting a dominant influence, this pattern supports the Red Queen hypothesis. Elevated transposable element activity enhanced genomic plasticity, enabling morphological variation, while morphological innovations (leg and wing) promoted locomotor and habitat shifts, fostering niche expansion. Ecological opportunities also play a driving role. Temperature fluctuations (paleotemperature and modern bio_10) significantly influenced speciation. Biogeographically, tropical regions serve as engines of species origin, exhibiting higher diversity, and reveals divergent evolutionary modes between different biodiversity hotspots, distinguishing between ‘Out-of-the-Tropics’ and ‘Pure dispersal’. The biogeographic patterns observed in the Sino-Japanese and Oriental regions are consistent with the Out-of-the-Tropics hypothesis. By synthesizing multidimensional datasets, this study provides an integrative perspective on the drivers of Gryllidea diversity and highlights the central role of multifactorial interactions in the evolution of biodiversity.
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- Type
- article
- Landing Page
- https://doi.org/10.5281/zenodo.17556680
- OA Status
- green
- OpenAlex ID
- https://openalex.org/W7104477612