Morphological and molecular analysis of Ephydatia fluviatilis (Porifera: Spongillida: Spongillidae) from Nanjing, China
文献类型：期刊论文
| 作者 | Zhao, Zhen1,2,3; Li, Chunxiang1,2 ; Yan, Xianqin4; Yang, Qun1,2,3; Ma, Junye1,2
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| 刊名 | SYSTEMATICS AND BIODIVERSITY
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| 出版日期 | 2023-12-31 |
| 卷号 | 21期号:1页码:13 |
| 关键词 | China Ephydatia fluviatilis freshwater sponge gemmule ITS > |
| ISSN号 | 1477-2000 |
| DOI | 10.1080/14772000.2023.2228865 |
| 通讯作者 | Ma, Junye(jyma@nigpas.ac.cn) |
| 英文摘要 | We present a comprehensive morphological description of Ephydatia fluviatilis collected in Nanjing for the first time in studies of freshwater sponges in China, based on scanning electron micrography of the sponge meshwork, the megascleres, the gemmules, and the delicate gemmuloscleres, in comparison with relevant data reported worldwide. The morphotype revealed in this study shows a peculiar spicular complement of the skeleton composed of two types of megascleres (the normal oxeas and occasional styles) with abundant tiny, centrally distributed microspinoses, gemmules (ca. 440 & mu;m in diameter) bearing two types of spinose decoration on the shaft (i.e., erect long spines and microspinoses). We report the first complete ITS sequences of the morphotype of E. fluviatilis from China, which, combined with homologous sequences of related taxa from GenBank, are used in a phylogenetic analysis in order to understand the species relationship within Ephydatia and neighbouring taxa. Combining the ITS phylogeny and the gemmulosclere morphotypes, we identify three clades in the paraphyletic genus Ephydatia that are distinguished by different birotule gemmulosclere morphotypes for gemmule-bearing species. Multiple losses of gemmules within endemic taxa, as previously proposed, are confirmed in this study in a phylogenetic context obtained herein. Additionally, genetic similarities are found in some morphologically diverse species, likely indicating recent endemism leading to morphological specialization. Considering the diverse fossil record of Ephydatia from Cenozoic sedimentary strata of wide geographic ranges, we hypothesize that Ephydatia might have a deep root in the Paleogene or earlier and experienced a rapid, Quaternary radiation with emergences of specialized endemic species that lost gemmules under glacial-interglacial paleoenvironment. |
| WOS关键词 | FRESH-WATER SPONGES ; DEMOSPONGIAE ; PHYLOGENY ; SYSTEMATICS ; RDNA |
| WOS研究方向 | Biodiversity & Conservation ; Life Sciences & Biomedicine - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001032809400001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/42533]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Ma, Junye |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Geol Explorat Technol Inst Jiangsu Prov, Nanjing 210049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zhen,Li, Chunxiang,Yan, Xianqin,et al. Morphological and molecular analysis of Ephydatia fluviatilis (Porifera: Spongillida: Spongillidae) from Nanjing, China[J]. SYSTEMATICS AND BIODIVERSITY,2023,21(1):13. |
| APA | Zhao, Zhen,Li, Chunxiang,Yan, Xianqin,Yang, Qun,&Ma, Junye.(2023).Morphological and molecular analysis of Ephydatia fluviatilis (Porifera: Spongillida: Spongillidae) from Nanjing, China.SYSTEMATICS AND BIODIVERSITY,21(1),13. |
| MLA | Zhao, Zhen,et al."Morphological and molecular analysis of Ephydatia fluviatilis (Porifera: Spongillida: Spongillidae) from Nanjing, China".SYSTEMATICS AND BIODIVERSITY 21.1(2023):13. |
入库方式： OAI收割
来源：南京地质古生物研究所
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