Rediscovery of Rhacophorus yaoshanensis and Theloderma kwangsiensis at their type localities after five decades

Zootaxa ◽  
2018 ◽  
Vol 4379 (4) ◽  
pp. 484 ◽  
Author(s):  
WEICAI CHEN ◽  
XIAOWEN LIAO ◽  
SHICHU ZHOU ◽  
YUNMING MO ◽  
YONG HUANG
Keyword(s):  
Mitochondrial Dna ◽  
16S Rrna ◽  
Phylogenetic Relationships ◽  
New Record ◽  
Nature Reserve ◽  
Guangxi Province ◽  
Preliminary Assessment ◽  
Phylogenetic Studies ◽  
Pairwise Divergence ◽  
High Support

Rhacophorus yaoshanensis Liu & Hu, 1962 and Theloderma kwangsiensis Liu & Hu, 1962 were described by Liu & Hu (1962) based on two specimens and one specimen, respectively, from the Dayaoshan Ranges, Guangxi, China. Since these two species were described, no additional specimens have been collected from their type localities, presenting an issue for phylogenetic studies of the genera. Five decades later, we have rediscovered R. yaoshanensis and T. kwangsiensis from their type localities. In this paper, we re-describe the two species and conduct a preliminary assessment of their phylogenetic relationships using two mitochondrial DNA genes (12S and 16S rRNA). The results indicate with high support that R. yaoshanensis is closely related to Rhacophorus pinglongensis. Theloderma kwangsiensis is nested within Theloderma corticale, with only 0.0–0.6% pairwise divergence, a level typical of intraspecific variation. Based on both molecular and morphological analyses, we further confirm that T. kwangsiensis is a synonym of T. corticale. Shiwandashan National Nature Reserve, Guangxi Province, China, is a new record for T. corticale. 

Molecular phylogeography of the Chinese lacertids of the genus Eremias (Lacertidae) based on 16S rRNA mitochondrial DNA sequences

2007 ◽  
Vol 28 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Jin Yuanting ◽  
Yan Yongfeng ◽  
Liu Naifa ◽  
Wan Lixia ◽  
Sun Shihong
Keyword(s):  
Mitochondrial Dna ◽  
16S Rrna ◽  
Phylogenetic Tree ◽  
Central Asia ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Sister Group ◽  
Eastern Asia ◽  
Monophyletic Clade ◽  
Western Asia

AbstractIn the present study, relationships among all Chinese species of lacertids in the genus Eremias, E. velox, E. grammica, E. vermiculata, E. przewalskii, E. multiocellata, E. arguta, E. brenchleyi, and E. argus, were assessed using 574 aligned base positions of 16S rRNA mitochondrial DNA sequences from 103 individuals collected from 28 populations. Three kinds of phylogenetic tree (MP, ME, and NJ) were reconstructed and were found to be concordant. All eight species well form a monophyletic group. The resulting genetic distance between E. przewalskii and E. multiocellata is surprisingly low, only 0.008. The result could be due to introgression of the mtDNA molecule. All Eastern-Asia lacertids except E. vermiculata grouped together and formed a monophyletic clade. E. vermiculata are closely related to E. arguta, a Central-Asia species. E. brenchleyi and E. argus formed a monophyletic clade as the sister group of E. multiocellata. The Central-Asia species (E. arguta, E. grammica and E. velox) originated from Central-Asia and Eastern-Asia species (the rest) from China. The phylogenetic relationships among E. grammica, E. velox, E. arguta-vermiculata, E. argus-brenchleyi, and E. multiocellata-przewalskii are unclear in the study, which needs more comprehensive taxonomic sampling from Western Asia and Europe, and additional genetic evidence to resolve it.

Whale falls, multiple colonisations of the deep, and the phylogeny of Hesionidae (Annelida)

2015 ◽  
Vol 29 (2) ◽  
pp. 105 ◽  
Author(s):  
Mindi Summers ◽  
Fredrik Pleijel ◽  
Greg W. Rouse
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
16S Rrna ◽  
Deep Sea ◽  
Phylogenetic Relationships ◽  
18S Rrna ◽  
Shallow Waters ◽  
28S Rrna ◽  
Mitochondrial Cytochrome ◽  
New Members

Phylogenetic relationships within Hesionidae Grube, 1850 are assessed via maximum parsimony and maximum likelihood analyses of mitochondrial (cytochrome c oxidase subunit I and 16S rRNA) and nuclear (18S rRNA, and 28S rRNA) data. The analyses are based on 42 hesionid species; six of these being new species that are described here. The new species, all from deep (>200 m depth) benthic environments (including whale falls) in the eastern Pacific, are Gyptis shannonae, sp. nov., Neogyptis julii, sp. nov., Sirsoe sirikos, sp. nov., Vrijenhoekia ketea, sp. nov., Vrijenhoekia falenothiras, sp. nov., and Vrijenhoekia ahabi, sp. nov. The molecular divergence among the new members of Vrijenhoekia is pronounced enough to consider them cryptic species, even though we cannot distinguish among them morphologically. Our results also showed that the subfamily Hesioninae Grube, 1850, as traditionally delineated, was paraphyletic. We thus restrict Hesioninae to include only Hesionini Grube, 1850 and refer the remaining members to Psamathinae Pleijel, 1998. The present study increases the number of hesionid species associated with whale falls from one to six and markedly increases the number of described deep-sea hesionid taxa. There appear to have been multiple colonisations of the deep sea from shallow waters by hesionids, though further sampling is warranted.

Phylogenetic relationships of living and recently extinct bandicoots based on nuclear and mitochondrial DNA sequences

2012 ◽  
Vol 62 (1) ◽  
pp. 97-108 ◽  
Author(s):  
M. Westerman ◽  
B.P. Kear ◽  
K. Aplin ◽  
R.W. Meredith ◽  
C. Emerling ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships

Morphological and phylogenetical analyses of pathogenic Hypomyces perniciosus isolates from Agaricus bisporus causing wet bubble disease in China

Phytotaxa ◽  
2021 ◽  
Vol 491 (2) ◽  
pp. 115-130
Author(s):  
CHUN-LAN ZHANG ◽  
ZHENG-WEN JIN ◽  
CAN SUN ◽  
ODESHNEE MOODLEY ◽  
JI-ZE XU ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Agaricus Bisporus ◽  
Morphological Characteristics ◽  
Pathogenicity Test ◽  
Test Results ◽  
Phylogenetic Studies ◽  
Group Ii

Hypomyces perniciosus is a destructive pathogen of Agaricus bisporus. The disease has been known to occur wherever A. bisporus is cultivated. Morphological characteristics have shown differences between reported isolates of H. perniciosus. However, clarification is needed to determine whether those isolates are the same species and an investigation of the phylogenetic relationships among them is warranted. Here, taxonomic and phylogenetic studies were carried out on 29 wet bubble disease pathogen isolates from China. Our analyses of the morphological characteristics and phylogenetic results support that they are the same H. perniciosus. Moreover, they are separated into two groups, groups ⅰ and groups ii. Pathogenicity test results inferred that group ii had weaker pathogenicity than group ⅰ. Consequently, we can deduce that wet bubble disease is still caused by H. perniciosus and isolates from two distinct groups.

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