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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 1,251 - 1,257 (7page)
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초록· 키워드
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Background The spiny eel (Sinobdella sinensis) is a small subtropical fish endemic to China, Vietnam, and Laos. It hasdisappeared in many rivers and lakes due to anthropogenic stressors. Objective The aim of this study was to investigate the genetic diversity and population structure and to provide pertinentinformation of the evolutionary history and conservation of S. sinensis. Methods Mitochondrial DNA (mtDNA) cytochrome c oxidase I (COI) sequences of 144 individuals from five lakes in theJiangsu Province of Eastern China were sequenced. Results A total of 17 haplotypes were defined by 20 variable nucleotide sites. Remarkably low haplotype and nucleotidediversity was observed in all sampled populations. The AMOVA analyses revealed that 96.44% of the genetic variationoccurred within the populations. Significant genetic differentiation was detected among populations (P < 0.05), but nolarge-scale regional differences were detected. Analysis of neutral evolution and mismatch distribution suggests populationexpansion. Low genetic diversity and shallow population structure based on COI sequences were also confirmed. Conclusions The wild resource of S. sinensis in Eastern China has sharply declined. Low genetic diversity and shallowpopulation structure based on COI sequences were confirmed. Fishing management and resource conservation of this speciesshould be taken urgently.
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