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OTA, HIDETOSHI,HONDA, MASANAO,CHEN, SZU-LUNG,HIKIDA, TSUTOMU,PANHA, SOMSAK,OH, HONG-SHIK,MATSUI, MASAFUMI 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.2
Historical relationships were inferred for the oriental lizards of the genus Takydromus Daudin 1802 (Lacertidae) on the basis of DNA sequences. Of the 17 species currently recognized for the genus, 13 species represented by 42 specimens from 29 localities were examined. Maximum-likelihood and maximum-parsimony analyses of data for 829 aligned sites from parts of the mitochondrial 12S and 16S rRNA gene yielded relationships that, while showing no substantial discrepancy with each other, were strikingly different from a currently prevailing phylogenetic hypothesis from a parsimony analysis of morphological characters. Based on the results of these molecular analyses, supplemented by results of the morphological analysis that offered robust evidence for positions of two additional species (T. khasiensis and T. sylvaticus), the following interrelationships were hypothesized as the most preferred phylogeny : (kuehnei (sexlineatus khasiensis)))tachydromoides ((smaragdinus (sauteri (dorsalis sylvaticus))) (amurensis (((formosanus wolteri) hsuehshanensis)(toyamai (septentrionalis stejnegeri)))))). These interrelationships indicate; (1) invalidity of Platyplacopus Boulenger 1917, which was recently resurrected as a subgenus of Takydromus on the basis of the morphological analysis; (2) homoplasy in states of some morphological characters, such as green dorsal coloration, that were considered as synapomorphs of certain nodes in the morphological analysis; and (3) involvement of the genus in a series of vicariances in both the continental and insular parts of eastern Eurasia. Due to the paucity of available samples, phylogenetic status of T. intermedius and T. haughtonianus remain to be examined in future studies.
Taxonomic Status of the Korean Populations of the Genus Scincella (Squamata: Scincidae)
CHEN, SZU-LUNG,HIKIDA, TSUTOMU,HAN, SANG-HOON,SHIM, JAE-HAN,OH, HONG-SHIK,OTA, HIDETOSHI 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.2
The lygosomine genus Scincella is a group of smallsized skinks distributed in temperate and tropical areas of Central, Southeast, and East Asia, and south-eastem North America. From the 19th century to the early in the 20th century, all East Asian populations of the genus were considered to be conspecific with North American Leioloyisma laterale.