Comparative transcriptomics highlights convergent evolution of energy metabolic pathways in group-living spiders

Yang, Hedi; Lyu, Bin; Yin, Haiqiang; Li, Shuqiang

doi:10.24272/j.issn.2095-8137.2020.281

Cited by 5 publications

(1 citation statement)

References 25 publications

(31 reference statements)

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“…Cellular autophagy is equally crucial for maintaining energy homeostasis during periods of starvation [14]. Research has shown that the evolution of social spiders is linked to nutritional metabolism and autophagy, which regulate metabolic processes and mitigate the threat of cannibalism to ensure an adequate energy supply [15].…”

Section: Introductionmentioning

confidence: 99%

Genomic and transcriptomic analyses ofHeteropoda venatoriareveal the expansion of P450 family for starvation resistance in spider

Zhang,

Wang,

Jiang

et al. 2024

Preprint

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BackgroundSpiders generally exhibit robust starvation resistance, with hunting spiders, represented byHeteropoda venatoria, being particularly outstanding in this regard. Given the challenges posed by climate change and habitat fragmentation, understanding how spiders adjust their physiology and behavior to adapt to the uncertainty of food resources is crucial for predicting ecosystem responses and adaptability.ResultsWe sequenced the genome ofH. venatoriaand, through comparative genomic analysis, discovered significant expansions in gene families related to lipid metabolism, such as cytochrome P450 and steroid hormone biosynthesis genes. We also systematically analyzed the gene expression characteristics ofH. venatoriaat different starvation resistance stages and found that the fat body plays a crucial role during starvation in spiders. This study indicates that during the early stages of starvation,H. venatoriarelies on glucose metabolism to meet its energy demands. In the middle stage, gene expression stabilizes, whereas in the late stage of starvation, pathways for fatty acid metabolism and protein degradation are significantly activated, and autophagy is increased, serving as a survival strategy under extreme starvation. Additionally, analysis of expanded P450 gene families revealed thatH. venatoriahas many duplicated CYP3 clan genes that are highly expressed in the fat body, which may help maintain a low-energy metabolic state, allowingH. venatoriato endure longer periods of starvation. We also observed that the motifs of P450 families inH. venatoriaare less conserved than those in insects, which may be related to the greater polymorphism of spider genomes.ConclusionsThis research not only provides important genetic and transcriptomic evidence for understanding the starvation mechanisms of spiders but also offers new insights into the adaptive evolution of arthropods.

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Section: Introductionmentioning

confidence: 99%

Genomic and transcriptomic analyses ofHeteropoda venatoriareveal the expansion of P450 family for starvation resistance in spider

Zhang,

Wang,

Jiang

et al. 2024

Preprint

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Molecular mechanisms of adaptive evolution in wild animals and plants

Wang

et al. 2023

Sci. China Life Sci.

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Wild animals and plants have developed a variety of adaptive traits driven by adaptive evolution, an important strategy for species survival and persistence. Uncovering the molecular mechanisms of adaptive evolution is the key to understanding species diversification, phenotypic convergence, and inter-species interaction. As the genome sequences of more and more non-model organisms are becoming available, the focus of studies on molecular mechanisms of adaptive evolution has shifted from the candidate gene method to genetic mapping based on genome-wide scanning. In this study, we reviewed the latest research advances in wild animals and plants, focusing on adaptive traits, convergent evolution, and coevolution. Firstly, we focused on the adaptive evolution of morphological, behavioral, and physiological traits. Secondly, we reviewed the phenotypic convergences of life history traits and responding to environmental pressures, and the underlying molecular convergence mechanisms. Thirdly, we summarized the advances of coevolution, including the four main types: mutualism, parasitism, predation and competition. Overall, these latest advances greatly increase our understanding of the underlying molecular mechanisms for diverse adaptive traits and species interaction, demonstrating that the development of evolutionary biology has been greatly accelerated by multi-omics technologies. Finally, we highlighted the emerging trends and future prospects around the above three aspects of adaptive evolution.

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Coevolutionary insights between promoters and transcription factors in the plant and animal kingdoms

Zhang¹,

Wang²,

Xia³

et al. 2022

Zoological Research

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Comparative transcriptomics highlights convergent evolution of energy metabolic pathways in group-living spiders

Cited by 5 publications

References 25 publications

Genomic and transcriptomic analyses ofHeteropoda venatoriareveal the expansion of P450 family for starvation resistance in spider

Genomic and transcriptomic analyses ofHeteropoda venatoriareveal the expansion of P450 family for starvation resistance in spider

Molecular mechanisms of adaptive evolution in wild animals and plants

Coevolutionary insights between promoters and transcription factors in the plant and animal kingdoms

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