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Molecular diversity and spatial distribution of benthic foraminifera of the seamounts and adjacent abyssal plains in the tropical Western Pacific Ocean
Shi, Junfeng1,4,5; Lei, Yanli1,3,4,5; Li, Qingxia1,4,5; Lyu, Man1,4,5; Li, Tiegang2,4
2020-04-01
Source PublicationMARINE MICROPALEONTOLOGY
ISSN0377-8398
Volume156Pages:10
Corresponding AuthorLei, Yanli(leiyanli@qdio.ac.cn) ; Li, Tiegang(tgli@fio.org.cn)
AbstractDeep-sea systems are among the least understood ecosystems on Earth. Forming large proportions of deep-sea benthic communities, benthic foraminifera play important roles; however, their molecular diversity and distribution patterns in the deep-sea seamounts and abyssal plains of the tropical Western Pacific Ocean are poorly known. In this study, using next-generation sequencing, we investigated the molecular diversities and community compositions of benthic foraminifera of the tropical Western Pacific Ocean seamounts and adjacent abyssal plains, with water depth ranging between 263 and 5900 m. A region of the small subunit (SSU) rRNA gene (about 300 bp) was amplified with the foraminiferal-specific primers (s14F3-s17), and the PR2 database was selected as the reference database for sequence assignment. Monothalamiids were assigned most of the 1399 operational taxonomic units (OTUs) obtained. The foraminifera genetic novelty, with an average similarity of 91.33% to reference sequences in the deep sea, was extremely high. Comparing the different habitats, the foraminiferal diversities of the seamounts investigated were both higher than those of their adjacent abyssal plains. Clustering of results showed the foraminifera community composition of the Y3 Seamount to be most like that of its adjacent abyssal plain. Our study indicates that the foraminiferal diversity distribution patterns and community structures between the two seamounts differ, yet they resemble those of their adjacent abyssal plain areas. We infer the possibilities that seamounts are diversity hotspots, possessing particularly high benthic species richness, and that foraminifera spread from them to the adjacent abyssal plains. The results also revealed variations in foraminifera at different water depths and temperatures in seamounts and adjacent abyssal plains. Additionally, an extremely high genetic novelty of foraminifera was observed in these habitats, which points to a hotspot for the discovery of new foraminifera species in deep-sea systems.
KeywordDeep-sea Seamounts Abyssal plain Benthic foraminifera Molecular diversity
DOI10.1016/j.marmicro.2020.101850
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA19060401] ; Science & Technology Basic Resources Investigation Program of China[2017FY100804] ; Key Program of National Natural Science Foundation of China[41930533] ; Key Program of National Natural Science Foundation of China[41830539] ; Taishan Scholars Project Funding ; Paul Bronnimann Foundation ; Senior User Project of R/V KEXUE[KEXUE2018G27]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000528062400004
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167290
Collection海洋生物分类与系统演化实验室
Corresponding AuthorLei, Yanli; Li, Tiegang
Affiliation1.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China
2.MNR, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao 266061, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Shi, Junfeng,Lei, Yanli,Li, Qingxia,et al. Molecular diversity and spatial distribution of benthic foraminifera of the seamounts and adjacent abyssal plains in the tropical Western Pacific Ocean[J]. MARINE MICROPALEONTOLOGY,2020,156:10.
APA Shi, Junfeng,Lei, Yanli,Li, Qingxia,Lyu, Man,&Li, Tiegang.(2020).Molecular diversity and spatial distribution of benthic foraminifera of the seamounts and adjacent abyssal plains in the tropical Western Pacific Ocean.MARINE MICROPALEONTOLOGY,156,10.
MLA Shi, Junfeng,et al."Molecular diversity and spatial distribution of benthic foraminifera of the seamounts and adjacent abyssal plains in the tropical Western Pacific Ocean".MARINE MICROPALEONTOLOGY 156(2020):10.
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