臺灣的疣尾蜥虎DNA起源

DNA Origins of Hemidactylus frenatus geckos of Taiwan

龍艾玲(Eileen Long)

指導教授 ： 袁孝維

國立臺灣大學/生物資源暨農學院/森林環境暨資源學研究所/碩士(2020年)

https://doi.org/10.6342/NTU202000386

摘要

無資料

關鍵字

疣尾蜥虎 ； 臺灣 ； 族群遺傳 ； 外來種

並列摘要

Compromising more than 120 species and found worldwide, Hemidactylus geckos are one of the most diverse and widely dispersed genera of reptiles. Of them the Common house gecko, Hemidactylus frenatus, is one of the most recognized and widely distributed and has invaded the Mediterranean region, Australia, most Pacific Islands, Europe, and North and South America over the past 100 years. Their proposed native range is the source of much controversy and many of their more recent colonizations are theorized to be largely anthropogenic. Here I present a molecular phylogeny for Taiwanese H. frenatus based on 681 bp of mitochondrial DNA (cytochrome b) and 309 bp of nuclear DNA (RAG1) from 19 individuals with the addition of H. bowringii, H. brookii, and H. garnotii individuals as outgroups. Samples from other countries were also obtained from GenBank.
Results of phylogenetic analyses revealed two distinct clades, wherein Clade 1 is restricted to India and Southeast Asia while Clade 2 encompasses the same region with additional incursions to the rest of the world. Individuals from Taiwan are represented in both clades. However, Taiwan individuals from the India-SE Asia clade were all collected from a singular locality, lending support to multiple incursion events in Taiwan and a non-native status in Taiwan. As a cryptic species, H. frenatus origins in Taiwan are still difficult to decipher and additional research using molecular markers with a higher mutation rate is needed for further clarity.

並列關鍵字

Biological invasions ； population genetics ； invasive species ； Gekkonidae ； Hemidactylus frenatus ； Common house gecko ； Taiwan

參考文獻

Akaike, H. 1973. Information theory and an extension of the maximum likelihood principle. Pages 267–287 in Proceedings of the 2nd International Symposium on Information Theory, B. N. Petrov and F. Caski, editors. Akadimiai Kiado, Budapest.

Anil, A. C., and V. Krishnamurthy. 2018. Ship-mediated marine bioinvasions: need for a comprehensive global action plan. ASEAN Journal on Science and Technology for Development 35(1–2):17–24. https://doi.org/10.29037/ajstd.468

Austerlitz, F., B. Jung-Muller, B. Godelle, and P. -H. Gouyon. 1997. Evolution of coalescence times, genetic diversity and structure during colonization. Theoretical Population Biology 51(2):148–164. https://doi.org/10.1006/tpbi.1997.1302

Austin, J. J., E. N. Arnold, and C. G. Jones. 2004. Reconstructing an island radiation using ancient and recent DNA: the extinct and living day geckos (Phelsuma) of the Mascarene islands. Molecular Phylogenetics and Evolution 31(1):109–122. https://doi.org/10.1016/j.ympev.2003.07.011

Bansal, R., and K. P. Karanth. 2010. Molecular phylogeny of Hemidactylus geckos (Squamata: Gekkonidae) of the Indian subcontinent reveals a unique Indian radiation and an Indian origin of Asian house geckos. Molecular Phylogenetics and Evolution 57(1):459–465. https://doi.org/10.1016/j.ympev.2010.06.008