scholarly journals Morphological and molecular analyses reveal two new insular species of Cnemaspis Strauch, 1887 (Squamata, Gekkonidae) from Satun Province, southern Thailand

ZooKeys ◽  
2019 ◽  
Vol 858 ◽  
pp. 127-161 ◽  
Author(s):  
Natee Ampai ◽  
Attapol Rujirawan ◽  
Perry L. Wood Jr ◽  
Bryan L. Stuart ◽  
Anchalee Aowphol
Keyword(s):  
New Species ◽  
Nadh Dehydrogenase ◽  
Color Pattern ◽  
Unique Combination ◽  
Nadh Dehydrogenase Subunit ◽  
Molecular Analyses ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Southern Thailand ◽  
Males And Females ◽  
Nd2 Gene

We describe two new insular gecko species of the genus Cnemaspis from Tarutao, Adang, and Rawi islands in Satun Province, southern Thailand. The new species are distinguished from their congeners in having a unique combination of morphological, scalation, and color pattern characters, and by genetic divergence in the mitochondrial NADH dehydrogenase subunit 2 (ND2) gene. Cnemaspistarutaoensissp. nov. was found to be a member of the C.kumpoli group, but is distinguished from all other species in that group by having 8–9 supralabials and 8 infralabials; 4–5 pore-bearing precloacal scales, pores rounded; 17–19 paravertebral tubercles randomly arranged; 27–29 subdigital lamellae under the fourth toe; subcaudal region yellowish, with smooth scales and a single enlarged median row; black gular markings in males and females; and 17.24–22.36% uncorrected pairwise sequence divergences. Cnemaspisadangrawisp. nov. was found to be a member of the C.siamensis group, but is distinguished from all other species in that group by having 10 supralabials and 9 infralabials; 6–8 pore-bearing precloacal scales, pores rounded and arranged in a chevron shape; 23–25 randomly arranged, separated paravertebral tubercle rows; 26–28 subdigital lamellae under the fourth toe; subcaudal scales keeled, without enlarged median row; gular region, abdomen, limbs and subcaudal region yellowish in males only; gular marking absent in males and females; and 8.30–26.38 % uncorrected pairwise sequence divergences. Cnemaspistarutaoensissp. nov. occurs in karst formations on Tarutao Island, while Cnemaspisadangrawisp. nov. is found near granitic, rocky streams on Adang and Rawi islands.

A new species Cyrtodactytlus Gray (Squamata: Gekkonidae) from western Thailand and the phylogenetic placement of C. inthanon and C. doisuthep

Zootaxa ◽  
2020 ◽  
Vol 4838 (2) ◽  
pp. 179-209
Author(s):  
SIRIWADEE CHOMDEJ ◽  
CHATMONGKON SUWANNAPOOM ◽  
PARINYA PAWANGKHANANT ◽  
WARANEE PRADIT ◽  
ROMAN A. NAZAROV ◽  
...  
Keyword(s):  
New Species ◽  
Nadh Dehydrogenase ◽  
Phylogenetic Analyses ◽  
Mitochondrial Gene ◽  
Color Pattern ◽  
Nadh Dehydrogenase Subunit ◽  
Taxonomic Analysis ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Tak Province ◽  
A New Species

A new species of Cyrtodactylus from Tak Province, Thailand, Cyrtodactylus amphipetraeus sp. nov., is described using an integrative taxonomic analysis based on morphology, color pattern, and the mitochondrial gene NADH dehydrogenase subunit 2 (ND2). The phylogenetic analyses place the new species within the C. sinyineensis group which was previously thought to be endemic to the Salween Basin in southern Myanmar. The phylogeny also places C. inthanon in the C. sinyneensis group which is expanded herein to also include the group’s sister species C. doisuthep. Along with C. amphipetraeus sp. nov., these are the first three species of the C. sinyineensis group to be found outside of Myanmar east of the Tenasserim Mountains. The Tenasserim Mountain region is discussed as an area of cladogeneic turnover. 

Taxonomy and molecular phylogeny of the Amiota nagatai species group (Diptera: Drosophilidae)

Zootaxa ◽  
2009 ◽  
Vol 2193 (1) ◽  
pp. 53-61 ◽  
Author(s):  
XIAOFANG HE ◽  
JIAN-JUN JIANG ◽  
HUA-ZHI CAO ◽  
HONG-WEI CHEN
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Nadh Dehydrogenase ◽  
Southern China ◽  
Species Group ◽  
Nadh Dehydrogenase Subunit ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Three New Species ◽  
Nd2 Gene

Three new species of the Amiota nagatai species group were described from southern China: A. bachlii Cao and Chen, sp. nov., A. chengyuae Cao and Chen, sp. nov. and A. protuberantis Cao and Chen, sp. nov. A key to all the species of this group was provided. The phylogenetic relationship in this group was investigated based on DNA sequences of the mitochondrial NADH dehydrogenase subunit 2 (ND2) gene, with two species of the genus Amiota taken as outgroups.

scholarly journals A phylogenetic taxonomy of the Cyrtodactylus peguensis group (Reptilia: Squamata: Gekkonidae) with descriptions of two new species from Myanmar

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5575 ◽  
Author(s):  
L. Lee Grismer ◽  
Perry L. Wood ◽  
Evan S.H. Quah ◽  
Matthew L. Murdoch ◽  
Marta S. Grismer ◽  
...  
Keyword(s):  
New Species ◽  
Nadh Dehydrogenase ◽  
Mitochondrial Gene ◽  
Color Pattern ◽  
Type Locality ◽  
Nadh Dehydrogenase Subunit ◽  
Molecular Systematic ◽  
Phylogenetic Taxonomy ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Two New Species

A phylogenetic taxonomy of species in the Cyrtodactylus peguensis group from the Ayeyarwady Basin of Myanmar is constructed based on color pattern, morphology, and molecular systematic analyses using the mitochondrial gene NADH dehydrogenase subunit 2. Newly collected samples from the type locality of C. peguensis and other localities indicate that this clade is endemic to central Myanmar and contains at least seven species, four of which are undescribed. Three species, including C. peguensis occur in the low hills of the Bago Yoma Range within the central portion of the Ayeyarwady Basin. Two of these, C. myintkyawthurai sp. nov. from the northern and central Bago Yoma and C. meersi sp. nov. which is syntopic with C. peguensis in the southern Bago Yoma are described herein. As more lowland hilly areas bordering, and within the Ayeyarwady Basin are surveyed, more new species of this group are likely to be discovered. These discoveries continue the recent surge of descriptions of new species of Cyrtodactylus that are being discovered in Myanmar.

A new species of Cnemaspis Strauch 1887 (Squamata: Gekkonidae) from the Langkawi Archipelago, Kedah, Peninsular Malaysia with an updated checklist of the herpetofauna of Tuba Island

Zootaxa ◽  
2020 ◽  
Vol 4767 (1) ◽  
pp. 138-160
Author(s):  
EVAN S. H. QUAH ◽  
PERRY L. JR. WOOD ◽  
M.S. SHAHRUL ANUAR ◽  
MOHD ABDUL MUIN
Keyword(s):  
Nadh Dehydrogenase ◽  
Color Pattern ◽  
Peninsular Malaysia ◽  
Unique Combination ◽  
Nadh Dehydrogenase Subunit ◽  
Anterior Portion ◽  
Nadh Dehydrogenase Subunit 2 ◽  
Black Spots ◽  
Fourth Species ◽  
A New Species

A new, diminutive species of Rock Gecko Cnemaspis tubaensis sp. nov. of the C. kumpoli group, is described from Tuba Island, Langkawi Archipelago, Kedah, Peninsular Malaysia and is differentiated from all other species in the kumpoli group by having a unique combination of morphological and color pattern characteristics, including a maximum SVL of 37.0 mm; 10 or 11 supralabials; eight or nine infralabials; 15–18 semi-linearly arranged paravertebral tubercles; lateral caudal furrow present; lateral caudal tubercles on the anterior portion of the tail; caudal tubercles not encircling tail; five or six precloacal pores; 28 or 29 subdigital lamellae on the fourth toe; smooth ventrals; smooth subcaudals with an enlarged median row of scales; subcaudal region light-grey and speckled with yellow; absence of light-colored ocelli on the shoulder; no yellow postscapular band; dorsum light-brown with sage-green blotches and black spots; flanks with scattered yellow spots; absence of black gular markings in both sexes; and 13.0–22.0% uncorrected pairwise sequence divergences in the NADH dehydrogenase subunit 2 gene (ND2). Cnemaspis tubaensis sp. nov. is the fourth species of Cnemaspis to be described from the Langkawi Archipelago and underscores the underestimated biodiversity of the islands which is in need of more thorough herpetological inventories. 

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.

A new species of Hemiphyllodactylus Bleeker (Squamata: Gekkonidae) from Yunnan, China and its phylogenetic relationship to other congeners

Zootaxa ◽  
2021 ◽  
Vol 4980 (1) ◽  
pp. 1-27
Author(s):  
ADE PRASETYO AGUNG ◽  
L. LEE GRISMER ◽  
JESSE L. GRISMER ◽  
EVAN S. H. QUAH ◽  
ADA CHORNELIA ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationship ◽  
Nadh Dehydrogenase ◽  
Sequence Divergence ◽  
The Body ◽  
Nadh Dehydrogenase Subunit ◽  
Base Pairs ◽  
Pairwise Sequence Divergence ◽  
Nadh Dehydrogenase Subunit 2 ◽  
A New Species

A new species of the gekkonid genus Hemiphyllodactylus is described from forested karst hills near Zhutangxiang town, Lancang Lahu Autonomous County, Yunnan, China. Hemiphyllodactylus zhutangxiangensis sp. nov. is distinguished from all other congeners in morphology and an uncorrected pairwise sequence divergence of greater than 14% based on 1039 base pairs of the mitochondrial NADH dehydrogenase subunit 2 gene (ND2). The new species is defined by the following characters: a maximum SVL of 44.42 mm; 7–9 chin scales; enlarged postmentals; five circumnasal scales; 2–4 internasal scales; 8–11 supralabial scales; 8–11 infralabial scales; subdigital lamellae on fingers II–V (3–5)-(4–6)-(4 or 5)-(4 or 5); subdigital lamellae on toes II–V (4 or 5)-(4 or 5)-(4–6)-(4 or 5); dorsal scales 11–15; ventral scales 5–7; 20–23 continuous femoroprecloacal pores; having pale-grey base color on the body with various darker transverse dorsal blotches; a dark postorbital stripe extending to at least to the base of the neck; no dark dorsolateral or ventrolateral stripe on trunk; and postsacral marking bearing a dark fork-like pattern with anteriorly projecting arms. The new species brings the species total of Hemiphyllodactylus in China to 11. 

A revision and redescription of the rock gecko Cnemaspis siamensis (Taylor 1925) (Squamata: Gekkonidae) from Peninsular Thailand with descriptions of seven new species

Zootaxa ◽  
2010 ◽  
Vol 2576 (1) ◽  
pp. 1 ◽  
Author(s):  
L. LEE GRISMER ◽  
MONTRI SUMONTHA ◽  
MICHAEL COTA ◽  
JESSE L. GRISMER ◽  
PERRY L. WOOD, JR. ◽  
...  
Keyword(s):  
New Species ◽  
National Park ◽  
Taxonomic Revision ◽  
Color Pattern ◽  
Unique Combination ◽  
The South ◽  
Number Of Species ◽  
The North ◽  
Southern Thailand ◽  
The Way

A taxonomic revision of Cnemaspis siamensis (Smith 1925) revealed it to be a complex composed of four species: C. siamensis (Smith 1925) which occurs on Ko Tao Island, Surat Thani Province and on the peninsula ranges from Khao Mod, Surat Thani Province in the south, northward east of the Tenasserim Mountains to Kaeng Krachan National Park, Phetchaburi Province; C. chanardi sp. nov. ranging from Tai Rom Yen National Park, Surat Thani Province in the north, southward through the western foothills of the Nakhon Si Thammarat and Sankalakhiri Mountains to Phuphaphet Cave, Satun Province and westward to Khlong Thom District, Krabi Province; C. vandeventeri sp. nov. ranging from Kapur District, Ranong Province southward to at least Khlong Had Sompen, District, Ranong Province west of the Tenasserim and Phuket Mountains and possibly all the way to Phuket Island; and C. kamolnorranathi sp. nov. restricted to the northwestern section of the Itshmus of Kra, ranging from Tham Khao Sonk, Thachana District, Surat Thani Province southward to Tai Rom Yen National Park, Surat Thani Province. These species are easily separated from one another on the basis of their unique combination of having or lacking precloacal pores, dark gular markings, a series of lightly colored bars on the flanks, and a lightly colored, prescapular crescent as well as other aspects of squamation. Four additional new species from western and southern Thailand are also described: C. huaseesom sp. nov. from Sai Yok National Park, Kanchanaburi Province; C. punctatonuchalis sp. nov. from Thap Sakae District, Prachuap Khiri Khan Province; C. narathiwatensis sp. nov. ranging from Waeng District, Narathiwat Province south to Bang Lang, Yala Province; and C. niyomwanae sp. nov. from Thum Khao Ting, Palean District, Trang Province, Thailand. These species are differentiated from each other and all other Cnemaspis on the basis of their unique combinations of color pattern and squamation characters. This brings the total number of species of Cnemaspis in Thailand from five to 12 and continues to illustrate that the unrealized diversity in this group is a function of unfocused collecting efforts coupled with poor taxonomy.

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.

scholarly journals Hidden tribe: A new species of Stream Toad of the genus Ansonia Stoliczka, 1870 (Anura: Bufonidae) from the poorly explored mountainous borderlands of western Thailand

2021 ◽  
Vol 71 ◽  
pp. 763-779
Author(s):  
Chatmongkon Suwannapoom ◽  
L. Lee Grismer ◽  
Parinya Pawangkhanant ◽  
Mali Naiduangchan ◽  
Platon V. Yushchenko ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Color Pattern ◽  
Sister Species ◽  
Mountain Region ◽  
Unique Combination ◽  
Species Status ◽  
Molecular Phylogenetic ◽  
A New Species

Abstract The integrated results of morphological and molecular phylogenetic analyses confirmed the new species status of a recently discovered population of Ansonia from Suan Phueng District, Ratchaburi Province, Thailand. Ansonia karensp. nov. is separated from all other species of Ansonia by a unique combination of mensural, discrete morphological, and color pattern characteristics and is the sister species of A. thinthinae from Tanintharyi Division, Myanmar. This discovery fills a geographic hiatus of 350 km between it and A. kraensis from Ranong Province, Thailand. Ansonia karensp. nov. is the newest member of a long list of range-restricted endemics having been recently discovered in the northern Tenasserim Mountain region of western Thailand and continues to underscore the unexplored nature of this region and its need for conservation.

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