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Population genetic structure of the threatened tropical seagrass Enhalus acoroides in Hainan Island, China
Yu, Shuo; Liu, Songlin1; Jiang, Kai2,3; Zhang, Jingping; Jiang, Zhijian; Wu, Yunchao1; Huang, Chi4; Zhao, Chunyu1; Huang, Xiaoping1; Trevathan-Tackett, Stacey M.
2018
Source PublicationAQUATIC BOTANY
ISSN0304-3770
Volume150Pages:64
AbstractKnowledge of the genetic structure of ecologically important species provides insight into population dynamics and persistence, which is important for decisions concerning ecosystem conservation and management. Seagrass ecosystems are being degraded in China due to coastal anthropogenic disturbances like eutrophication and pollution, but their genetic ecology is still poorly understood. In this study, we collected Enhalus acoroides samples from three lagoons and five offshore open-water sites along the east coast of Hainan Island to investigate its genetic diversity and structure using ten microsatellite loci. A total of 66 alleles were found, and the genetic diversity indices (i.e. mean number of alleles per locus, allelic richness and heterozygosity) varied among the eight populations. Assignment tests showed that the E. acoroides populations consists of three genetic clusters. Impeded gene flow among lagoonal populations was found, while connectivity existed among the open-water populations. This pattern seemed to be shaped by geographic isolation and ocean currents. Based on the genetic contribution analysis, we recommended that the E. acoroides populations at Tielugang and Gangdong need protection priority given they contribute higher genetic diversity, but are currently high risk populations under threats of pollution and physical disturbance.
DepartmentLMB
KeywordSeagrass Enhalus acoroides Microsatellites Genetic differentiation Isolation Dispersal
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17619
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Chenshan Plant Sci Res Ctr, Chenshan Bot Garden, Shanghai 201602, Peoples R China
4.East China Normal Univ, Sch Ecol & Environm Sci, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Shanghai 200241, Peoples R China
5.Ocean Univ China, Qingdao 266100, Peoples R China
6.Trevathan-Tackett, Stacey M.] Deakin Univ, Ctr Integrat Ecol, Sch Life & Environm Sci, Melbourne, Vic 3125, Australia
Recommended Citation
GB/T 7714
Yu, Shuo,Liu, Songlin,Jiang, Kai,et al. Population genetic structure of the threatened tropical seagrass Enhalus acoroides in Hainan Island, China[J]. AQUATIC BOTANY,2018,150:64, 70.
APA Yu, Shuo.,Liu, Songlin.,Jiang, Kai.,Zhang, Jingping.,Jiang, Zhijian.,...&Trevathan-Tackett, Stacey M..(2018).Population genetic structure of the threatened tropical seagrass Enhalus acoroides in Hainan Island, China.AQUATIC BOTANY,150,64.
MLA Yu, Shuo,et al."Population genetic structure of the threatened tropical seagrass Enhalus acoroides in Hainan Island, China".AQUATIC BOTANY 150(2018):64.
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