Genetic Diversity of the Sable (Martes zibellina, Mustelidae) in Russian Far East and Hokkaido Inferred from Mitochondrial NADH Dehydrogenase Subunit 2 Gene Sequences

Mammal Study ◽  
2011 ◽  
Vol 36 (4) ◽  
pp. 209-222 ◽  
Author(s):  
Jun J. Sato ◽  
Tetsuji Hosoda ◽  
Alexey P. Kryukov ◽  
Irina V. Kartavtseva ◽  
Hitoshi Suzuki
Keyword(s):  
Genetic Diversity ◽  
Nadh Dehydrogenase ◽  
Russian Far East ◽  
Far East ◽  
Gene Sequences ◽  
Nadh Dehydrogenase Subunit ◽  
Martes Zibellina ◽  
Nadh Dehydrogenase Subunit 2

scholarly journals Genetic Diversity ofEchinococcus granulosusin Southwest China Determined by the Mitochondrial NADH Dehydrogenase Subunit 2 Gene

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Jiahai Wang ◽  
Ning Wang ◽  
Dandan Hu ◽  
Xiuqin Zhong ◽  
Shuxian Wang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Nadh Dehydrogenase ◽  
Southwest China ◽  
Genetic Relationships ◽  
Sensu Stricto ◽  
Control Measures ◽  
Nadh Dehydrogenase Subunit ◽  
High Genetic Diversity ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Genetic Diversity And Structure

We evaluated genetic diversity and structure ofEchinococcus granulosusby analyzing the complete mitochondrial NADH dehydrogenase subunit 2 (ND2) gene in 51 isolates ofE. granulosus sensu strictometacestodes collected at three locations in this region. We detected 19 haplotypes, which formed a distinct clade with the standard sheep strain (G1). Hence, all 51 isolates were identified asE. granulosus sensu stricto(G1–G3). Genetic relationships among haplotypes were not associated with geographical divisions, and fixation indices (Fst) among sampling localities were low. Hence, regional populations ofE. granulosusin the southwest China are not differentiated, as gene flow among them remains high. This information is important for formulating unified region-wide prevention and control measures. We found large negative Fu’s Fs and Tajima’sDvalues and a unimodal mismatch distribution, indicating that the population has undergone a demographic expansion. We observed high genetic diversity among theE. granulosus s. s.isolates, indicating that the parasite population in this important bioregion is genetically robust and likely to survive and spread. The data from this study will prove valuable for future studies focusing on improving diagnosis and prevention methods and developing robust control strategies.

scholarly journals A new species of the genus Ptyctolaemus Peters, 1864 (Squamata, Agamidae) from Sagaing, Myanmar

2021 ◽  
Vol 5 (2) ◽  
pp. 347-357
Author(s):  
Shuo Liu ◽  
Mian Hou ◽  
Ye Htet Lwin ◽  
Dingqi Rao
Keyword(s):  
New Species ◽  
Nadh Dehydrogenase ◽  
Gene Sequences ◽  
Wildlife Sanctuary ◽  
Nadh Dehydrogenase Subunit ◽  
Nadh Dehydrogenase Subunit 2 ◽  
A New Species

A new species of Ptyctolaemus Peters, 1864 is described from Htamanthi Wildlife Sanctuary, Sagaing Division, Myanmar. The new species differs from P. gularis and Ptyctolaemus aff. gularis from Tibet, China, by having relatively longer limbs and different colorations of the gular region, and it differs from P. collicristatus by having much longer limbs and a less developed nuchal crest in males. Moreover, the new species differs genetically from Ptyctolaemus aff. gularis from Tibet, China, and P. collicristatus by an uncorrected percentage distance of 23.5% and 24.8%, respectively, inferred from mitochondrial NADH dehydrogenase subunit 2 gene sequences. This discovery increases the number of known Ptyctolaemus species to three.

Departure from Neutrality at the Mitochondrial NADH Dehydrogenase Subunit 2 Gene in Humans, but Not in Chimpanzees

Genetics ◽  
1998 ◽  
Vol 148 (1) ◽  
pp. 409-421 ◽  
Author(s):  
Cheryl A Wise ◽  
Michaela Sraml ◽  
Simon Easteal
Keyword(s):  
Nadh Dehydrogenase ◽  
Statistical Tests ◽  
Low Frequency ◽  
Nadh Dehydrogenase Subunit ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Tests Of Neutrality ◽  
Slightly Deleterious Mutations ◽  
Neutral Marker ◽  
Transmembrane Regions ◽  
Interspecific Comparisons

Abstract To test whether patterns of mitochondrial DNA (mtDNA) variation are consistent with a neutral model of molecular evolution, nucleotide sequences were determined for the 1041 bp of the NADH dehydrogenase subunit 2 (ND2) gene in 20 geographically diverse humans and 20 common chimpanzees. Contingency tests of neutrality were performed using four mutational categories for the ND2 molecule: synonymous and nonsynonymous mutations in the transmembrane regions, and synonymous and nonsynonymous mutations in the surface regions. The following three topological mutational categories were also used: intraspecific tips, intraspecific interiors, and interspecific fixed differences. The analyses reveal a significantly greater number of nonsynonymous polymorphisms within human transmembrane regions than expected based on interspecific comparisons, and they are inconsistent with a neutral equilibrium model. This pattern of excess nonsynonymous polymorphism is not seen within chimpanzees. Statistical tests of neutrality, such as Tajima's D test, and the D and F tests proposed by Fu and Li, indicate an excess of low frequency polymorphisms in the human data, but not in the chimpanzee data. This is consistent with recent directional selection, a population bottleneck or background selection of slightly deleterious mutations in human mtDNA samples. The analyses further support the idea that mitochondrial genome evolution is governed by selective forces that have the potential to affect its use as a “neutral” marker in evolutionary and population genetic studies.

New data on tardigrades of the genus Milnesium (Tardigrada, Eutardigrada, Milnesiidae) from the Russian Far East, obtained using the method of molecular barkoding

2021 ◽  
Vol 32 ◽  
pp. 114-122
Author(s):  
E.V. Maskin ◽  
◽  
P.V. Grebenkin ◽  
L.V. Zheleznova ◽  
D.V. Tumanov ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Russian Far East ◽  
Far East ◽  
Integrative Taxonomy ◽  
Biological Data ◽  
The Third ◽  
Thickened Cuticle ◽  
The Russian Far East ◽  
Fourth Pair

A study of terrestrial tardigrades of the genus Milnesium Doyère, 1840 collected in Russky Island (Primorsky kray, Vladivostok) was carried out using the methods of integrative taxonomy, including the analysis of morphological and molecular biological data. Three species are recorded from this island, of which M. inceptum Morek, Suzuki, Schill, Georgiev, Yankova, Marley et Michalczyk, 2019 is new for the fauna of Russia. New data were obtained on the distribution and genetic diversity of M. tardigradum Doyère, 1840. The third species, Milnesium sp., is similar to M. tardigradum but differs from latter in the presence of a characteristic thickened cuticle zone at the base of the claws of the fourth pair of legs and is probably a new for science species.

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