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Comparative genomics studies on the intertidal spider (Desis jiaxiangi) provide new insights into evolutionary adaptations to a marine lifestyle

ABSTRACT: This project investigates the adaptive evolution of intertidal spider silk proteins, focusing on the proteomic and structural composition of silks. Using high-resolution mass spectrometry, this study provides insights into silk’s structural diversity and adaptive potential, elucidating evolutionary patterns and protein adaptations underlying silk functionality. Findings advance our understanding of silk’s ecological adaptability and evolutionary dynamics in intertidal spiders.

INSTRUMENT(S):

ORGANISM(S): Desis Jiaxiangi

SUBMITTER: Fan Li

LAB HEAD: Daiqin Li

PROVIDER: PXD057357 | Pride | 2026-04-14

REPOSITORIES: Pride

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Project description:Spider silk proteins are synthesized in the silk-producing glands, where the spidroins are produced, stored and processed into a solid fiber from a crystalline liquid solution. Despite great interest in the spider silk properties, that make this material suitable for biomedical and biotechnological applications, the mechanism of formation and spinning of the silk fibers has not been fully elucidated; and no combination of proteomic and transcriptomic study has been carried out so far in the spider silk-producing glands. Nephila clavipes is an attractive orb-web spider to investigate the spinning process of silk production, given the properties of strength, elasticity and biocompatibility of their silk fibers. Thus, considering that the combination of proteomic and transcriptomic analysis may reveal an extensive repertoire of novel proteins involved in the silk spinning process, and in order to facilitate and enable proteomics in this non-model organism, the current study aims to construct a high quality reference mRNA-derived protein database that could be used to identify tissue specific expression patterns in spider silk glands. Next-generation sequencing has offered a powerful and cost-efficient technique for the generation of transcriptomic datasets in non-model species using diverse platforms such as the Illumina HiSeq, Roche 454, Pacific Biosystems, and Applied Biosystems SOLiD; In the current study, the Illumina HiSeq 2000 platform will be used to generate a N. clavipes spider silk glands transcriptome-based protein database. The transcriptome data generated in this study will provide a comprehensive and valuable genomic resource for future research of the group of spider silk-producing glands, in order to improve our understanding of the overall mechanism of action involved in production, secretion, storage, transport, protection and conformational changes of spidroins during the spinning process, and prey capture; and the results may be relevant for scientists in material Science, biology, biochemistry, and environmental scientists.

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Dataset Information

Comparative genomics studies on the intertidal spider (Desis jiaxiangi) provide new insights into evolutionary adaptations to a marine lifestyle

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