scholarly journals Geographic isolation created distinct pelage characters in Finlayson’s squirrel on isolated island offshore of the Indochina Peninsula in Central Vietnam

2021 ◽  
Vol 67 (4) ◽  
pp. 403-415
Author(s):  
Tu Ngoc Ly ◽  
Son Truong Nguyen ◽  
Masaharu Motokawa ◽  
Duong Thuy Vu ◽  
Hai Tuan Bui ◽  
...  
Keyword(s):  
Cytochrome B ◽  
Mitochondrial Cytochrome ◽  
Geographic Isolation ◽  
Indochina Peninsula ◽  
Central Vietnam ◽  
Mitochondrial Cytochrome B

We found distinct pelage characters in Finlayson’s squirrel (Callosciurus finlaysonii) population, which is endemic to Lao Island of the Cham Islands, located off the coast of central Vietnam. Among squirrels of the ‘C. erythraeus-finlaysonii complex’, which consists of all forms of C. erythraeus and C. finlaysonii, mitochondrial cytochrome-b sequences show that the Lao Island squirrel forms a cluster with C. finlaysonii with external characters of C. erythraeus flavimanus, defined previously as ‘C. finlaysonii morpha flavimanus’. Both squirrel forms, however, differed in pelage colour. This different colouration may have arisen from the effect of geographic isolation.

scholarly journals Phylogenetic relationships among Callosciurus squirrels in the Indochina Peninsula: phylogenetic position of C. pygerythrus from Myanmar

2021 ◽  
Vol 67 (1) ◽  
pp. 87-98
Author(s):  
Tatsuo Oshida ◽  
Wynn Than ◽  
Thida Oo ◽  
Khin Yu Yu Swe ◽  
Hiroaki Saito ◽  
...  
Keyword(s):  
Cytochrome B ◽  
Phylogenetic Relationships ◽  
Divergence Time ◽  
Divergence Times ◽  
Phylogenetic Position ◽  
Mitochondrial Cytochrome ◽  
Indochina Peninsula ◽  
Mitochondrial Cytochrome B ◽  
Global Cooling ◽  
Mitochondrial Cytochrome B Gene

The phylogenetic relationships among seven Callosciurus species from the Indochina Peninsula, including the C. honkhoaiensis which is endemic to Hon Khoai Island, were studied using complete mitochondrial cytochrome b gene sequences (1140 bases). We primarily focused on the phylogenetic position of C. pygerythrus, which is distributed in the western part of the peninsula. We identified two main lineages: 1) C. caniceps, C. honkhoaiensis, C. inornatus, C. phayrei and C. pygerythrus, and 2) C. erythraeus and C. finlaysonii. Estimated divergence time between the two lineages was at the junction of the Zanclean and Piacenzian in the Pliocene. Within the first linage, the divergence time of sub-lineages corresponded to the Pliocene-Pleistocene boundary, although phylogenetic relationships were unclear. These two divergence times estimated in the present study correspond to episodes of global cooling, suggesting that climate may have contributed to the divergence of these Callosciurus squirrels.

scholarly journals An analysis of polymorphism and phylogenetic tree using mitochondrial cytochrome B of wild boar in central Vietnam highlands

2012 ◽  
Vol 34 (3se) ◽  
Author(s):  
Nguyen Thi Phuong Mai ◽  
Le Ngoc Chau ◽  
Nguyen Khac Duy ◽  
Le Thanh Long ◽  
Hoang Nghia Son
Keyword(s):  
Phylogenetic Tree ◽  
Wild Boar ◽  
Cytochrome B ◽  
Mitochondrial Cytochrome ◽  
Central Vietnam ◽  
Mitochondrial Cytochrome B

scholarly journals Human mitochondrial cytochrome b variants studied in yeast: not all are silent polymorphisms

2016 ◽  
Vol 1857 ◽  
pp. e44-e45
Author(s):  
Zehua Song ◽  
Anaïs Laleve ◽  
Cindy Vallières ◽  
John E. McGeehan ◽  
Rhiannon E. Lloyd ◽  
...  
Keyword(s):  
Cytochrome B ◽  
Mitochondrial Cytochrome ◽  
Mitochondrial Cytochrome B

Mitochondrial Cytochrome b DNA Sequence Variations: An Approach to Fish Species Identification in Processed Fish Products

2005 ◽  
Vol 68 (2) ◽  
pp. 421-425 ◽  
Author(s):  
TIZIANA PEPE ◽  
MICHELE TROTTA ◽  
ISOLINA DI MARCO ◽  
PAOLA CENNAMO ◽  
ANIELLO ANASTASIO ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Cytochrome B ◽  
Fish Species ◽  
Mitochondrial Cytochrome ◽  
Fish Products ◽  
Community Regulation ◽  
Sequence Variations ◽  
Fish Species Identification ◽  
Mitochondrial Cytochrome B ◽  
Pcr Products

The identification of fish species in food products is problematic because morphological features of the fish are partially or completely lost during processing. It is important to determine fish origin because of the increasing international seafood trade and because European Community Regulation 104/2000 requires that the products be labeled correctly. Sequence analysis of PCR products from a conserved region of the cytochrome b gene was used to identity fish species belonging to the families Gadidae and Merluccidae in 18 different processed fish products. This method allowed the identification of fish species in all samples. Fish in all of the examined products belonged to these two families, with the exception of one sample of smoked baccalà (salt cod), which was not included in the Gadidae cluster.

scholarly journals Kajian Penanda Genetik Gen Sitokrom b DNA Mitokondria Ikan Lais dari Sungai Kampar Riau

2018 ◽  
Vol 10 (1) ◽  
pp. 6
Author(s):  
Roza Elvyra ◽  
Dedy Duryadi Solihin
Keyword(s):  
Species Diversity ◽  
Molecular Marker ◽  
Phylogenetic Relationship ◽  
Cytochrome B ◽  
Mitochondrial Cytochrome ◽  
Cyt B ◽  
Phylogenetic Marker ◽  
Mitochondrial Cytochrome B ◽  
Cyt B Gene

The mitochondrial cytochrome b (cyt-b) gene as a phylogenetic marker of lais fish Kryptopterus schilbeides from Kampar River in Riau has been studied. This is a prelimininary research on the utility of cyt-b gene as a molecular marker to obtain species diversity and phylogenetic relationship among Kryptopterus fishes from Kampar River. The primers of L14841 and H15149 were used to amplify the cyt-b gene. The results showed that K. schilbeides has isoleusine at site-81 and metionine at site-114; K. schilbeides from Kampar River and K. schilbeides from GenBank form a phylogeny cluster at 45% value.

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