Low genetic diversity in the endangered marine alga Silvetia siliquosa(Ochrophyta: Fucaceae) and the implication to conservation
文献类型：CNKI期刊论文
| 作者 | Yanshuo LIANG ; Jie ZHANG; Xiaohan SONG; Han-Gil CHOI; Xu GAO; Delin DUAN; Zi-min HU
|
| 发表日期 | 2022-01-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | biodiversity conservation endangered seaweed genetic diversity habitat loss Silvetia siliquosa |
| 英文摘要 | Although significant research ef forts have been targeted toward conservation and management of endangered terrestrial fl ora and fauna, attempts have been limited to conserve threatened seaweeds.Silvetia siliquosa is an ecologically and commercially vital brown alga that is uniquely distributed in the Yellow-Bohai Sea and along the southwest coast of Korea. A massive decline in its distribution range and biomass from the mid-1990 s onward indicates that this species has become endangered. In the present study, we used nuclear internal transcribed spacer and concatenated mitochondrial cytochrome oxidase I subunit+intergenic spacer to estimate the genetic diversity, population connectivity, and degree of genetic dif ferentiation of S. siliquosa in China and Korea. The molecular results exhibited strikingly low levels of haplotype/ribotype and nucleotide diversity in S. siliquosa populations, with only three mitochondrial haplotypes and nuclear ribotypes detected in 136 and 143 specimens, respectively. The analysis of molecular variance revealed 85%–95% of genetic variance among populations. Population dif ferentiation coe fficient( F_(ST)) and gene fl ow( N_m) suggested that two populations(JIN and GWA) along the southern coast of Korea are highly divergent from the others, with weak genetic exchange. No significant genetic dif ferentiation was observed among populations either in China or along the geographically proximate west coast of Korea.Thus, four independent management units were designated for sustainable management: the LII and RUS populations in China, the YEO and CHA populations along the west coast of Korea, and each of the GWA and JIN populations along the south coast of Korea. We suggest that artificial cultivation and transplantation of S. siliquosa are the ef fective approaches for restoration and conservation. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (Nos. 31971395, 41761144057) |
| 卷 | v.40期:01页:219-228 |
| 语种 | 英文; |
| 分类号 | Q943 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187538]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.LaboratoryforMarineBiologyandBiotechnology,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 2.OceanSchool,YantaiUniversity 3.FacultyofBiologicalScienceandInstituteforEnvironmentalScience,WonkwangUniversity 4.CASandShandongProvinceKeyLaboratoryofExperimentalMarineBiology,CenterforOceanMega-Science,InstituteofOceanology,ChineseAcademyofSciences 5.UniversityofChineseAcademySciences |
| 推荐引用方式 GB/T 7714 | Yanshuo LIANG,Jie ZHANG,Xiaohan SONG,et al. Low genetic diversity in the endangered marine alga Silvetia siliquosa(Ochrophyta: Fucaceae) and the implication to conservation. 2022. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。