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The species identification of mussels in Qing Lan Lake (Jiangxi Province) based on sequence differences of mitochondirial 16S rRNA gene
Zhang Liang; Huang Yan-Yan; Liu Huan-zhang (hzliu@ihb.ac.cn); Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China
2004
Source PublicationActa Hydrobiologica Sinica
ISSN1000-3207
Volume28Issue:3Pages:294-298
AbstractGenerally, the identification of freshwater mollusk is mainly baesd on shell differences, but shells are greatly variable under different environmental conditions and hence usually result in taxonomic confusion. To clarify these problems, many studies on morphology, ecology, anatomy and physiology have been carried out in the past years, such as the researches on marsupial glochidium, sensory hairs and spines. However, they have not shown any conclusive evidence for definite identification. In order to identify the mussel species correctly, we employed the molecular systematic method. The mitochondrial 16S ribosomal RNA gene has been used in the pyhlogenetic studies of mussels successfully. In the present study, the 16S rRNA gene fragments were sequenced to 19 individuals of mussels, which belong to 14 species of 10 genera, and were from the Qing Lan Lake (Jiangxi province, where the water quality is excellent and the species of fishes and mussels are abundant). The target fragments of 16S rRAN were isolated by PCR amplification to the samples. Thirty five cycles of PCR (94degreeC, 1 min denatruing, 57degreeC, 30s annealing, 72degreeC, 1 min extension) were performed. Some sequences of mussels from Poyang Lake were downloaded from GenBank for comparison. Alignments were manipulated using Clustal X and refined manually where necessary. Sequence analysis was performed using MEGA (Version 2.1) software. Genetic distances were calculated based on Kimura 2-parameter model. The largest intraspecific genetic distance is 0.0068, much lower than the average interspecific distance, which has a value of 0.1325, and still much lower than the shortest interspecific distance, 0.0274, suggesting that 16S rRNA is a useful genetic marker for identification of mussel species clearly.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18097
Collection期刊论文
Corresponding AuthorZhang Liang; Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China
Recommended Citation
GB/T 7714
Zhang Liang,Huang Yan-Yan,Liu Huan-zhang ,et al. The species identification of mussels in Qing Lan Lake (Jiangxi Province) based on sequence differences of mitochondirial 16S rRNA gene[J]. Acta Hydrobiologica Sinica,2004,28(3):294-298.
APA Zhang Liang,Huang Yan-Yan,Liu Huan-zhang ,&Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China.(2004).The species identification of mussels in Qing Lan Lake (Jiangxi Province) based on sequence differences of mitochondirial 16S rRNA gene.Acta Hydrobiologica Sinica,28(3),294-298.
MLA Zhang Liang,et al."The species identification of mussels in Qing Lan Lake (Jiangxi Province) based on sequence differences of mitochondirial 16S rRNA gene".Acta Hydrobiologica Sinica 28.3(2004):294-298.
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