Dataset Information

Next-generation sequencing yields the complete mitochondrial genome of the endangered Milos viper Macrovipera schweizeri (Reptilia, Viperidae).

ABSTRACT: The Milos viper, Macrovipera schweizeri, is an endangered viperid snake found on four Aegean islands (Greece). Its complete mitochondrial genome, the first reported for the genus Macrovipera, was assembled through next-generation sequencing. Its total length is 17,152?bp and includes 22 tRNAs, two ribosomal RNA genes, 13 protein-coding genes and two control regions, showing the typical gene-arrangement for Viperidae. Eight tRNAs and ND3 are encoded on the light strand, while all other genes are encoded on the heavy strand. A mitogenomic phylogeny that included Macrovipera schweizeri and 13 other viperid genera returned an unresolved relationship among the genera Macrovipera, Daboia and Vipera.

SUBMITTER: Thanou E

PROVIDER: S-EPMC7800557 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Next-generation sequencing yields the complete mitochondrial genome of the endangered Milos viper Macrovipera schweizeri (Reptilia, Viperidae).

Thanou Evanthia E Kornilios Panagiotis P

Mitochondrial DNA. Part B, Resources 20181026 2

The Milos viper, Macrovipera schweizeri, is an endangered viperid snake found on four Aegean islands (Greece). Its complete mitochondrial genome, the first reported for the genus Macrovipera, was assembled through next-generation sequencing. Its total length is 17,152 bp and includes 22 tRNAs, two ribosomal RNA genes, 13 protein-coding genes and two control regions, showing the typical gene-arrangement for Viperidae. Eight tRNAs and ND3 are encoded on the light strand, while ...[more]

PMID: 33474481

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Project description:The joint impacts of historical geological events and Quaternary climatic oscillations in Northwest China on species evolution have been examined extensively in plant under a phylogeographic perspective. However, animal phylogeographic analyses in this region are still limited. The Alashan pit viper, Gloydius cognatus, occurs primarily in arid Northwest China and adjacent areas. Based on variation at two mtDNA genes (ND4 and Cytb) in 27 individuals representing 24 populations, the spatial genetic structure and demographic history of G. cognatus were examined across its geographic range. Phylogenetic analyses revealed two well-supported allopatric clades (each with two distinct subclades/lineages), distributed across the southern (Qaidam Basin, Lanzhou Basin, and Zoige Basin [S1]; Loess Plateau [S2]) and northern (Ily Basin [N1]; Junggar Basin and Mongolian Plateau [N2]) regions. AMOVA analysis demonstrated that over 76% of the observed genetic variation was related to these lineage splits, indicating substantial genetic differentiation among the four lineages. A strong pattern of isolation-by-distance across the sampling populations suggested that geographic distance principally shaped the genetic structure. The four lineages diverged by 0.9-2.2% for the concatenated data, which were estimated to have coalesced ~1.17 million years ago (Mya), suggesting that the expansions of the Badain Jaran, Tengger, and Mu Us deserts during the Xixiabangma glaciation likely interrupted gene flow and triggered the observed divergence in the southern and northern regions. Subsequently, the early Pleistocene integration of the Yellow River and associated deserts expansion promoted the differentiation of S1 and S2 lineages (~0.9 Mya). Both mitochondrial evidence and ecological niche modeling (ENM) reject the signature of demographic and range contractions during the LGM for G. cognatus. In addition, ENM predicts that the suitable habitat of G. cognatus will contract in the future. As such, the conservation and management of ESUs should be a priority. Our findings provide the first insights on the lineage diversification and population dynamics of the Alashan pit viper in relation to geological history and Pleistocene climatic oscillations in arid Northwest China.

Dataset Information

Next-generation sequencing yields the complete mitochondrial genome of the endangered Milos viper Macrovipera schweizeri (Reptilia, Viperidae).

Publications

Next-generation sequencing yields the complete mitochondrial genome of the endangered Milos viper <i>Macrovipera schweizeri</i> (Reptilia, Viperidae).

Similar Datasets

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