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Assessment of the genetic relationship between the recently established benthic population and the adjacent floating populations of Sargassum horneri (Phaeophyceae) in Dalian of China by newly developed trinucleotide microsatellite markers
Wang, Xuemei1,2,3,4; Shan, Tifeng1,2,3; Pang, Shaojun1,2,3; Su, Li1,2,3
2019-12-01
Source PublicationJOURNAL OF APPLIED PHYCOLOGY
ISSN0921-8971
Volume31Issue:6Pages:3989-3996
Corresponding AuthorShan, Tifeng(shantifeng@qdio.ac.cn) ; Pang, Shaojun(sjpang@qdio.ac.cn)
AbstractSargassum horneri is a conspicuous canopy-forming brown seaweed growing on solid substrates or floating on sea surface. A recently established benthic population was discovered in a bay in Dalian, China, in 2016 and suggested to be derived from the earlier floating population. Since 2016, floating populations have kept appearing in the adjacent area. The genetic connectivity between this recently established benthic population and the adjacent floating populations remains unclear. In this study, 10 novel informative trinucleotide microsatellite markers were developed through the high throughput sequencing technology, and employed to analyze the genetic structure of the benthic population (DS16 and DS18) and three adjacent floating populations (DL16, BL16, and DL18) sampled in 2016 and 2018, with one floating population collected from Shidao in 2016 (SD16) as reference. Significant genetic differentiation was found to exist between the benthic and floating populations, and among floating populations from different years. Almost no membership of floating populations was detected in the benthic population and vice versa by the Bayesian model-based structure analysis, indicating very limited genetic connectivity between them. Significant excess of heterozygosity, significant multilocus linkage disequilibrium, high frequency of repeated genotypes, and putative clones were detected in all floating populations, indicating that asexual reproduction is likely dominant in them. Inbreeding and founder effect were revealed to be present in the benthic population. Further studies will focus on tracking the dynamics of genetic structure in the recently established benthic population and investigating the exact reproductive means and patterns of floating populations.
KeywordPhaeophyceae Drifting seaweed Founder effect Genetic structure Simple sequence repeat Asexual reproduction
DOI10.1007/s10811-019-01853-2
Indexed BySCI
Language英语
Funding ProjectState's Key Project of Research and Development Plan[2016YFC1402507] ; National Key Technology Support Program[2015BAD13B05] ; China Agriculture Research System[CARS-50] ; Taishan Scholar Program of Shandong Province ; Foundation for Huiquan Scholar of Institute of Oceanology, Chinese Academy of Sciences
WOS Research AreaBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS SubjectBiotechnology & Applied Microbiology ; Marine & Freshwater Biology
WOS IDWOS:000507642200058
PublisherSPRINGER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/164458
Collection实验海洋生物学重点实验室
Corresponding AuthorShan, Tifeng; Pang, Shaojun
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, 7 Nanhai Rd, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Xuemei,Shan, Tifeng,Pang, Shaojun,et al. Assessment of the genetic relationship between the recently established benthic population and the adjacent floating populations of Sargassum horneri (Phaeophyceae) in Dalian of China by newly developed trinucleotide microsatellite markers[J]. JOURNAL OF APPLIED PHYCOLOGY,2019,31(6):3989-3996.
APA Wang, Xuemei,Shan, Tifeng,Pang, Shaojun,&Su, Li.(2019).Assessment of the genetic relationship between the recently established benthic population and the adjacent floating populations of Sargassum horneri (Phaeophyceae) in Dalian of China by newly developed trinucleotide microsatellite markers.JOURNAL OF APPLIED PHYCOLOGY,31(6),3989-3996.
MLA Wang, Xuemei,et al."Assessment of the genetic relationship between the recently established benthic population and the adjacent floating populations of Sargassum horneri (Phaeophyceae) in Dalian of China by newly developed trinucleotide microsatellite markers".JOURNAL OF APPLIED PHYCOLOGY 31.6(2019):3989-3996.
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