Molecular Phylogenetics and Evolution, Journal Year: 2020, Volume and Issue: 152, P. 106918 - 106918
Published: July 30, 2020
Language: Английский
ZooKeys, Journal Year: 2021, Volume and Issue: 1021, P. 81 - 107
Published: March 2, 2021
A new species of the Asian leaf litter toad genus Leptobrachella is described from Guizhou Province, China. Molecular phylogenetic analyses support as an independent lineage deeply nested in clade. The distinguished its congeners by a combination following morphological characters: body size medium (SVL 29.7–31.2 mm five adult males); dorsal skin shagreened, some granules forming longitudinal short ridges; tympanum distinctly discernible, slightly concave; supra-axillary, femoral, pectoral and ventrolateral glands visible; absence webbing lateral fringes on fingers; toes with narrow but without webbing; heels overlapping when thighs are positioned at right angles to body; tibia-tarsal articulation reaching middle eye leg stretched forward. discovery highlighted underestimated diversity toads southwestern
Language: Английский
Citations
108
Zootaxa, Journal Year: 2019, Volume and Issue: 4683(3)
Published: Oct. 9, 2019
Molecular phylogenetic analyses of the sister species Sphenomorphus stellatus and S. praesignis based on mitochondrial genes 12S 16S rRNA recover former as paraphyletic with respect to latter in that a specimen from type locality Peninsular Malaysia is more closely related than Indochinese populations stellatus. Furthermore, phylogeny indicates represent two species, thus resulting four major lineages within this clade. These relationships are consistent multivariate univariate morphological discrete color pattern data which statistically define diagnose together molecular data, provide foundation for robust, testable, species-level hypotheses. As such, herein restricted Malaysia; annamiticus resurrected circum-continental ranging through southeastern Thailand, southern Cambodia, Vietnam; new species-S. preylangensis sp. nov.-is described an isolated mountain, Phnom Chi, Prey Lang Wildlife Sanctuary central Cambodia; taxonomy remains unchanged. The description nov. underscores necessity conserve remnant lowland evergreen rainforest Sanctuary.
Language: Английский
Citations
95
Biodiversity Science, Journal Year: 2020, Volume and Issue: 28(2), P. 189 - 218
Published: Jan. 1, 2020
We updated the checklists of extant, native amphibians and reptiles China based on previously published checklist in 2015, online database AmphibiaChina, newly data as December 2019, uncollected literature prior to 2015.In total, amphibian fauna consists 515 species 62 genera, 13 families, three orders (Anura: 431 47 genera nine families; Caudata: 82 14 four•生物编目•
Language: Английский
Citations
66
Molecular Ecology, Journal Year: 2020, Volume and Issue: 29(20), P. 3970 - 3987
Published: Aug. 28, 2020
Most new cryptic species are described using conventional tree- and distance-based delimitation methods (SDMs), which rely on phylogenetic arrangements measures of genetic divergence. However, although numerous factors such as population structure gene flow known to confound inference delimitation, the influence these processes is not frequently evaluated. Using large numbers exons, introns, ultraconserved elements obtained FrogCap sequence-capture protocol, we compared SDMs with more robust genomic analyses that assess characterize boundaries in a Southeast Asian frog complex (Pulchrana picturata). Our results showed introgression can produce patterns levels divergence resemble distinct (up 10% mitochondrial DNA). Hybrid populations were inferred independent (singleton) clades highly divergent from adjacent (7%-10%) unusually similar (<3%) allopatric populations. Such anomalous uncommon amphibians, brings into question whether high diversity observed other amphibian groups reflect species-or, instead, admixed structured metapopulation lineages. also provide an alternative explanation conundrum (sometimes nonsister) sympatric lineages-a pattern has been celebrated indicative true speciation. Based findings, recommend continuously distributed "cryptic" should solely SDMs, but necessarily examine avoid taxonomic inflation.
Language: Английский
Citations
63
Vertebrate Zoology, Journal Year: 2024, Volume and Issue: 74, P. 303 - 342
Published: April 4, 2024
Abstract Despite recent progress in our understanding of diversity within the genus Trimeresurus Lacépède, 1804, subgenus Popeia Malhotra & Thorpe, 2004, distributed across most parts East and Southeast Asia, remains taxonomically challenging. We applied an integrative taxonomic approach including analyses morphological data four mitochondrial genes (12S 16S rRNA, cytochrome b , NADH dehydrogenase subunit 4), along with examination available type material, to address longstanding questions one clade T. popeiorum group, reveal a high level hidden these snakes Indo-Burma Biodiversity Hotspot. confirm that Smith, 1937 sensu stricto is restricted Northeast India, eastern Nepal, southern Bhutan, southeastern Bangladesh, western Yunnan Province (China), northern southwestern Myanmar. further recently described species yingjiangensis Chen et al., 2019 junior synonym . In addition, we discovered combination Trimesurus [sic] elegans Gray, 1853 valid senior threatens stability latter taxon. Therefore, order protect nomen accordance Article 23.9 International Code Zoological Nomenclature, regard taxon as oblitum render protectum. Examination larger series specimens allows us describe two new cryptic from Region. This study brings total number six also suggests subspecific taxonomy sabahi complex requires investigation. urge adequate actions regarding conservation newly recommend studies on their toxicology.
Language: Английский
Citations
7
European Journal of Taxonomy, Journal Year: 2024, Volume and Issue: 930
Published: March 27, 2024
We describe a new species of karst-dwelling pitviper from Chumphon Province Peninsular Thailand, in the Isthmus Kra, based on morphological and molecular data (2427 bp cyt b, ND4 16S rRNA mitochondrial DNA genes). Morphologically, Trimeresurus kraensis sp. nov. is distinguished other congeners by following combination characters: dark/bottle-green dorsum with reddish-brown or purple crossbands; pale green venter lacking dark dots; stripes present lateral sides ventrals; internasals generally contact; one large supraocular scale each side head; iris copper; tail brown purplish-brown crossbars; dorsal scales 21–21–15 rows; ventral 167 single male, 169–171 females; subcaudal 62 52–54 females, all paired. White vertebral spots males, located approximately every two four scales; forming discontinuous pattern 1–3 males postocular stripe jagged edges. The differs morphologically similar venustus s. str. notable divergence cytochrome b gene sequences (p = 5.9%).
Language: Английский
Citations
6
Vertebrate Zoology, Journal Year: 2024, Volume and Issue: 74, P. 343 - 357
Published: April 4, 2024
Abstract The torrent frogs of the genus Amolops represent a great anuran diversification in southern China and Southeast Asia. Previous studies have shown that, diversity this still remains underestimated. During herpetological surveys from 2021 to 2022, several specimens were collected international border regions southwestern Yunnan Province, China. Herein, we utilized molecular phylogenetic morphological data identify these specimens. Our findings indicate presence separate previously unknown lineage A. viridimaculatus group, which formally describe as new species. Furthermore, specimen Xishuangbanna National Nature Reserve clustered with vitreus paratype, supporting diagnosis. Therefore, species record for study contributes richness well amphibians Notably, our discovery brings total number 85 frog known occur 53. In addition, further confirmed that Indochina Peninsula similar faunal composition, implying more are needed achieve complete understanding distribution pattern.
Language: Английский
Citations
6
National Science Review, Journal Year: 2019, Volume and Issue: 7(8), P. 1387 - 1397
Published: Dec. 31, 2019
Abstract The biological species concept (BSC) is the cornerstone of neo-Darwinian thinking. In BSC, do not exchange genes either during or after speciation. However, as gene flow speciation increasingly being reported in a substantial literature, it seems time to reassess revered, but often doubted, BSC. Contrary common perception, BSC should expect at onset speciation, least because geographical isolation develops gradually. Although does stipulate how begins, require sustained period for complete its course. Evidence against must demonstrate that observed merely occur continues until completion. Importantly, recent genomic analyses cannot reject this more realistic version although future may still prove wrong. ultimate acceptance rejection about historical debate; rather, fundamental nature – are (and, hence, divergent adaptations) driven by relatively small number genes, thousands them? Many levels biology, ranging from taxonomy biodiversity, depend on resolution.
Language: Английский
Citations
50
Zenodo (CERN European Organization for Nuclear Research), Journal Year: 2019, Volume and Issue: unknown
Published: March 31, 2019
A new species of Calamaria Boie, 1827 is described based on a single specimen collected in evergreen forest at 1240 m elevation Ta Dung Nature Reserve Dak Nong Province, Central Vietnam. The characterized by (1) rostral wider than high; (2) paraparietal surrounded six shields and scales; (3) eye diameter larger eyemouth distance; (4) preocular present; (5) supralabials 5/4, 3-4/2-3 entering orbit; (6) maxillary teeth nine, modified; (7) infralabials first three touching anterior chin shields; (8) mental tip right shield; (9) ventrals 1 + 174; subcaudal scales 18/17, divided; (10) precloacal plate single; (11) tail relatively short (6.2% the total length), nearly as thick body, slightly tapering, ending obtuse point; (12) dorsal reducing to rows position above 4th subcaudal, four 13th tail; (13) dorsum dark with irregular yellow blotches; (14) ventral side few blotches bands. This sixth from Vietnam past thirteen years tenth recorded this country.
Language: Английский
Citations
47
PeerJ, Journal Year: 2020, Volume and Issue: 8, P. e9411 - e9411
Published: July 3, 2020
Frogs of the genus
Language: Английский
Citations
43