Genetically variant populations of Paragonimus proliferus Hsia & Chen, 1964 from central Vietnam

2012 ◽  
Vol 87 (2) ◽  
pp. 141-146 ◽  
Author(s):  
P.N. Doanh ◽  
H.V. Hien ◽  
N. Nonaka ◽  
Y. Horii ◽  
Y. Nawa

AbstractAmong about 50 nominal Paragonimus species, Paragonimus proliferus is rather a rare species, found only in Yunnan province, China, until our recent discovery of this species in Lai Chau province, northern Vietnam close to Yunnan, China. Here we add Quang Binh province, central Vietnam as a new endemic area of P. proliferus. Large excysted metacercariae found in mountainous crabs, Potamiscus tannanti, were morphologically identified as P. proliferus, which was confirmed further by molecular analyses. Second internal transcribed spacer (ITS2) sequences of the P. proliferus population in Quang Binh province were completely (100%) identical with those of P. proliferus populations in Lai Chau province, northern Vietnam and Yunnan province, China. However, cytochrome oxidase subunit 1 (CO1) gene sequences of Quang Binh population were significantly different (5.6%) from that of previously reported northern Vietnam and Yunnan, China populations. A phylogenetic tree revealed that all CO1 sequences of P. proliferus Quang Binh population formed a distinct group, which was clustered with northern Vietnam and Yunnan, China populations with the bootstrap value of 75%. This is the first record of the genetically variant population of P. proliferus, distribution of which is geographically remote from the previously reported endemic areas in the border between northern Vietnam and Yunnan, China, suggesting that P. proliferus may be much more widely distributed in the Indochina peninsula (or South-East Asia) than expected.

2020 ◽  
Vol 33 ◽  
pp. 5
Author(s):  
Cheng Liu ◽  
Zhijin Yang ◽  
Pan Liu ◽  
Shen Ye ◽  
Fozia Khan Siyal ◽  
...  

Pampus fishes (Perciformes: Stromateidae) are important commercial species and include six valid species in China. The southern lesser pomfret (Pampus minor Liu and Li, 1998) is a species of Pampus for which knowledge is incomplete. This report confirms the occurrence of P. minor in the coastal waters of Wenzhou, China, by analyzing five specimens of P. minor obtained in Wenzhou in March 2019. Morphometric measurements and meristic counts were performed. The diagnostic morphological features of these species were consistent with those of the neotype specimen of P. minor and sufficient for separating the examined specimens from other Pampus species. This study was based on the Cytochrome Oxidase Subunit 1 (CO1) gene, which was sequenced for the purpose of identification. The genetic distances between P. minor and other Pampus species ranged from 13.4% to 15.5%, and the mean genetic distance within the P. minor group was 0.2%. Given that P. minor has not been reported in this region, our findings represent the first record from the coastal waters of Wenzhou and extend the distribution range of this species to the central and northern East China Sea. The reason for the observed northward migration of some P. minor individuals from their northernmost recorded habitat (Taiwan Strait) might be global warming. The collection of additional specimens is needed to further study the geographic limits of P. minor and its presumed northern expansion.


Zootaxa ◽  
2019 ◽  
Vol 4585 (2) ◽  
pp. 343
Author(s):  
AKIHIKO SHINOHARA ◽  
SHIN-ICHI IBUKI ◽  
TSUNEO KAKUDA ◽  
YUICHI KAMEDA

We identified newly discovered pamphiliid larvae feeding on Cornus in Tochigi and Ibaraki Prefectures, Honshu, Japan, with Pamphilius japonicus Shinohara, 1985, by molecular methods using mitochondrial cytochrome oxidase subunit 1 (COI) gene sequences. The host plant of P. japonicus was unknown. This is the first record of the Cornaceae as a host plant of the Pamphiliidae in the Old World. The larvae were solitary leaf-rollers on Cornus and discovered mainly on small young trees in shadowy forests. 


2012 ◽  
Vol 87 (4) ◽  
pp. 450-456 ◽  
Author(s):  
P.N. Doanh ◽  
H.V. Hien ◽  
N. Nonaka ◽  
Y. Horii ◽  
Y. Nawa

AbstractTwo members of the Paragonimus skrjabini complex, P. skrjabini and P. miyazakii, are now considered as two sub-species, P. skrjabini skrjabini and P. skrjabini miyazakii. They are well known as important pathogens for human paragonimiasis in China and Japan. Recently, members of this species complex have been reported from India. Here we report the first discovery of P. skrjabini from freshwater crab hosts in Thanh Hoa province, Vietnam. For morphological and molecular phylogenetic studies, adult worms were obtained by experimental infection in cats and dogs. Molecular analyses of metacercariae and adults revealed that the P. skrjabini population from Thanh Hoa, Vietnam was almost completely identical with that from Yunnan province, China. Those populations from Thanh Hoa, Vietnam and Yunnan, China and those from Manipur, India were significantly different from P. skrjabini populations reported from other localities of China in cytochrome oxidase subunit 1 (CO1) gene sequences, indicating considerable genetic variation within the P. skrjabini complex. Moreover, low bootstrap values in the CO1 tree suggested that more variant genotypes belonging to P. skrjabini complex may be found in other Asian countries in between Vietnam and India, such as Myanmar, Laos and Thailand. Since P. skrjabini is known as a pathogen for humans, paragonimiasis cases caused by P. skrjabini might be found in Vietnam and other Asian countries.


2017 ◽  
Vol 25 (1) ◽  
pp. 43
Author(s):  
Qi Shuo ◽  
Yu Guo-hua ◽  
Lei Bo ◽  
Fan Yi ◽  
Zhang Deng-lin ◽  
...  
Keyword(s):  

2010 ◽  
Vol 19 (1) ◽  
pp. 29-34
Author(s):  
A.V. Gorochov

Prohimerta (Anisotima) laocai sp. nov. from Northern Vietnam and Paraducetia cruciata gialai subsp. nov. from Central Vietnam are described. Corrected are some erroneous data on systematic position of Prohimerta (Anisotima) vieta, P. (Prohimerta) maculosa, and Paraducetia cruciata, as well as those on the type locality of P. maculosa.


ISRN Zoology ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Hiroko Somura ◽  
Hiroshi Hori ◽  
Yoshinobu Manome

The slow loris (Nycticebus) is a prosimian that is popular among exotic pet lovers. In Japan, many slow lorises have been imported illegally. Prosimians that have been confiscated in raids are protected in Japanese zoos, and the number of such animals has increased. In most cases, the country of origin remains unknown and even the species can be difficult to identify from the animal’s physical appearance alone. We have attempted to resolve this problem by using DNA analysis. DNA samples of five species, consisting of the Pygmy slow loris (Nycticebus pygmaeus), Bengal slow loris (Nycticebus bengalensis), Sunda slow loris (Nycticebus coucang), Javan slow loris (Nycticebus javanicus), and Bornean slow loris (Nycticebus menagensis), were extracted, amplified, and the nucleotide sequences of mitochondrial 12S rRNA, 16S rRNA, and the cytochrome oxidase subunit 1(COI) regions were compared. Differences of nucleic acid sequences of representative individuals were demonstrated.


2018 ◽  
Vol 66 (7) ◽  
pp. 556 ◽  
Author(s):  
Michael K. Macphail ◽  
Robert S. Hill

Fossil pollen and spores preserved in drillcore from both the upper South Alligator River (SARV) in the Kakadu National Park, Northern Territory and the North-West Shelf, Western Australia provide the first record of plants and plant communities occupying the coast and adjacent hinterland in north-west Australia during the Paleogene 66 to 23million years ago. The palynologically-dominant woody taxon is Casuarinaceae, a family now comprising four genera of evergreen scleromorphic shrubs and trees native to Australia, New Guinea, South-east Asia and Pacific Islands. Rare taxa include genera now mostly restricted to temperate rainforest in New Guinea, New Caledonia, New Zealand, South-East Asia and/or Tasmania, e.g. Dacrydium, Phyllocladus and the Nothofagus subgenera Brassospora and Fuscospora. These appear to have existed in moist gorges on the Arnhem Land Plateau, Kakadu National Park. No evidence for Laurasian rainforest elements was found. The few taxa that have modern tropical affinities occur in Eocene or older sediments in Australia, e.g. Lygodium, Anacolosa, Elaeagnus, Malpighiaceae and Strasburgeriaceae. We conclude the wind-pollinated Oligocene to possibly Early Miocene vegetation in the upper SARV was Casuarinaceae sclerophyll forest or woodland growing under seasonally dry conditions and related to modern Allocasuarina/Casuarina formations. There are, however, strong floristic links to coastal communities growing under warm to hot, and seasonally to uniformly wet climates in north-west Australia during the Paleocene-Eocene.


Check List ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 705-712
Author(s):  
Leila B. Guzmán ◽  
Enzo N. Serniotti ◽  
Roberto E. Vogler ◽  
Ariel A. Beltramino ◽  
Alejandra Rumi ◽  
...  

Omalonyx unguis (d’Orbigny, 1837) is a semi-slug inhabiting the Paraná river basin. This species belongs to Succineidae, a family comprising a few representatives in South America. In this work, we provide the first record for the species from Misiones Province, Argentina. Previous records available for Omalonyx in Misiones were identified to the genus level. We examined morphological characteristics of the reproductive system and used DNA sequences from cytochrome oxidase subunit I (COI) gene for species-specific identification. These new distributional data contribute to consolidate the knowledge of the molluscan fauna in northeastern Argentina.


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