頁籤選單縮合
題 名 | Genetic Variation of the Japanese eel Anguilla Japonica Based on Microsatellite DNA |
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作 者 | Tseng,Mei-chen; Lee,Sin-che; Tzeng,Wann-nian; | 書刊名 | 水產研究 |
卷 期 | 9:1/2 民90.12 |
頁 次 | 頁137-147 |
分類號 | 388.491 |
關鍵詞 | Microsatellite; Catadromous; Anguilla japonica; Polymorphism; Genetic differentiation; |
語 文 | 英文(English) |
英文摘要 | Six microsatellite loci, containing GA/GT tandem repeats were characterized and used to examine the genetic variability in spawning populations of the catadromous Japanese eel Anguilla japonica. The allelic size of the six loci ranges from 79 to 220 bp in length. All loci are polymorphic with a mean number of 15.3 alleles per locus and a mean observed heterozygosity (Ho) of 0.66, suggesting its having higher polymorphism than freshwater fishes, but lower than marine fishes. Since the provisional support of the Japanese eel as a panmictic species by mtDNA sequencing, this hypothesis was tested with other gene marker, i. e., microsatellite, on the samples from Taiwan and Mainland China. Our results revealed a slight genetic differentiation (Fst = 0.0314) among populations. Cross-species amplification showed that five of the six microsatellite primers are suitable for studying population genetics of all relevant Anguilla species. |
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