气候变化领域集成服务门户(CCPortal): Biomineralization in a cold environment: Insights from shield compositions and transcriptomics of polar sternaspids (Sternaspidae, Polychaeta)

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DOI	10.1016/j.cbd.2023.101187
	Biomineralization in a cold environment: Insights from shield compositions and transcriptomics of polar sternaspids (Sternaspidae, Polychaeta)
	Ge, Meiling; Liu, Bing; Zhang, Qian; Mou, Anning; Li, Xinlong; Wang, Zongling; Zhang, Xuelei; Xu, Qinzeng
发表日期	2024
ISSN	1744-117X
EISSN	1878-0407
起始页码	49
卷号	49
英文摘要	The survival and physiological functions of polar marine organisms are impacted by global climate changes. Investigation of the adaptation mechanisms underlying biomineralization in polar organisms at low temperatures is important for understanding mineralized organismal sensitivity to climate change. Here, we performed electron probe analysis on the shields of Antarctic polychaete Sternaspis sendalli and Arctic polychaete Sternaspis buzhinskajae (Sternaspidae), and sequenced the transcriptomes of the tissues surrounding shields to examine biomineral characteristics and adaptive mechanisms in persistently cold environments. Compared to the temperate relative species, the relative abundance of iron, phosphorus, calcium, magnesium, nitrogen, sulfur and silicon in two polar sternaspid shields was similar to Sternaspis chinensis. However, the diversity and expression levels of biomineralization-related shell matrix proteins differed between the polar and temperate species, suggesting distinct molecular mechanisms underlying shield formation in cold environments. Tubulin and cyclophilin were upregulated compared to the temperate species. Furthermore, 42 positively selected genes were identified in Antarctic S. sendalli, with functions in cytoskeletal structure, DNA repair, immunity, transcription, translation, protein synthesis, and lipid metabolism. Highly expressed genes in both polar species were associated with cytoskeleton, macromolecular complexes and cellular component biosynthesis. Overall, this study reveals conserved elemental composition yet distinct biomineralization processes in the shields of polar sternaspids. The unique expression of biomineralization related genes and other cold-adaptation related genes provide molecular insights into biomineralization in cold marine environments.
英文关键词	Sternaspidae; Biomineralization; Shell matrix protein; Transcriptomic analysis; Polar Ocean
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Genetics & Heredity
WOS类目	Biochemistry & Molecular Biology ; Genetics & Heredity
WOS记录号	WOS:001154570200001
来源期刊	COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298660
作者单位	First Institute of Oceanography, Ministry of Natural Resources; Laoshan Laboratory
推荐引用方式 GB/T 7714	Ge, Meiling,Liu, Bing,Zhang, Qian,et al. Biomineralization in a cold environment: Insights from shield compositions and transcriptomics of polar sternaspids (Sternaspidae, Polychaeta)[J],2024,49.
APA	Ge, Meiling.,Liu, Bing.,Zhang, Qian.,Mou, Anning.,Li, Xinlong.,...&Xu, Qinzeng.(2024).Biomineralization in a cold environment: Insights from shield compositions and transcriptomics of polar sternaspids (Sternaspidae, Polychaeta).COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS,49.
MLA	Ge, Meiling,et al."Biomineralization in a cold environment: Insights from shield compositions and transcriptomics of polar sternaspids (Sternaspidae, Polychaeta)".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 49(2024).