- 期刊
Phylogeography and Identification of a 187-bp-Long Duplication within the Mitochondrial Control Region of Formosania lacustre (Teleostei: Balitoridae)
並列摘要
An unusually long duplication was first discovered within the mitochondrial control region of the hillstream loach, Formosania lacustre. Over 68% of the 22 heteroplasmic individuals with the duplication were concentrated in the Tadu and Choshui Rivers of west-central Taiwan. This unusual duplication was located in the R1-repeated region of the mitochondrial genome, which includes a partial tRNA(superscript Pro) and the 5'-end control region. The duplication has a tendency to form secondary hairpin structures. For the phylogeographic analysis, the mitochondrial control region of 68 individual loaches from 11 different river systems (10 in Taiwan and 1 in mainland China) were amplified and sequenced. Nested clade analysis divided these loach populations into 2 distinct groups: northern and central groups. Higher and lower F(subscript ST) values were respectively revealed in the northern and central groups. Unexpectedly, a newly recorded population was established in this study. This population was previously classified as F. stigmata, but the mtDNA lineage analysis and morphological comparison indicated a strong similarity of this population with F. lacustre. Furthermore, the nested clade analysis indicated a long-distance dispersal route from central Taiwan to the mainland China; the mainland population later dispersed into northern Taiwan during recent ice ages. We concluded that colonization between the mainland China and central Taiwan was a major influence leading to the low genetic divergence and recent recolonization of F. lacustre.
延伸閱讀
- Xue, B. (2013). Molecular phylogenetics of Polyalthia (Annonaceae): identifying clades and morphological synapomorphies in alarge polyphyletic genus [doctoral dissertation, The University of Hong Kong]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0029-0511201300009043
- LIU, M., LI, L., QU, Z., LUO, X., FARRAJ, S. A. A., LIN, X., & HU, X. (2017). Morphological Redescription and SSU rDNA-based Phylogeny of Two Freshwater Ciliates, Uronema nigricans and Lembadion lucens (Ciliophora, Oligohymenophorea), with Discussion on the Taxonomic Status of Uronemita sinensis. Acta Protozoologica, 56(1), 17-37. https://doi.org/10.4467/16890027AP.17.003.6967
- Hu, X. Y., Hu, X. Z., Rasheid, K. A. S. A., & Song, W. B. (2009). Reconsideration on the Phylogenetic Position of Epiclintes (Ciliophora, Stichotrichia) Based on SSrRNA Gene Sequence and Morphogenetic Data. Acta Protozoologica, 48(3), 203-211. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200909-201101060033-201101060033-203-211
- Gao, S., Chen, Z. G., Shao, C., Long, H. A., Rasheid, K. A. S. A., & Song, W. B. (2008). Reconsideration of the Phylogenetic Position of Frontonia-related Peniculia (Ciliophora, Protozoa) Inferred from the Small Subunit Ribosomal RNA Gene Sequences. Acta Protozoologica, 47(1), 47-54. https://www.airitilibrary.com/Article/Detail?DocID=00651583-200803-201101060027-201101060027-47-54
- Yen-Chen Lee、Kuang-Yang Lue、Wen-Lung Wu（2008）。A Molecular Phylogenetic Investigation of Cyathopoma (Prosobranchia: Cyclophoridae) in East Asia。Zoological Studies，47(5)，591-604。https://www.airitilibrary.com/Article/Detail?DocID=10215506-200809-47-5-591-604-a