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Updated: May 10, 2026

Small-Scale Extraction of Caenorhabditis elegans Genomic DNA

Small-Scale Extraction of Caenorhabditis elegans Genomic DNA

Published on: June 7, 2022

Complete mitochondrial genome sequence of Nectogale elegans.

Ting Huang¹, Chaochao Yan, Zheng Tan

¹Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University , Chengdu , P.R. China and.

Mitochondrial DNA

|June 26, 2013

Summary

The complete mitochondrial genome of the elegant water shrew (Nectogale elegans) was sequenced, revealing its structure and evolutionary relationships within the Soricidae family. Phylogenetic analysis confirmed its divergence patterns among related shrew species.

Keywords:

Complete mitochondrial genome elegant water shrew phylogeny

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Area of Science:

Genomics
Evolutionary Biology
Mammalogy

Background:

The elegant water shrew (Nectogale elegans) is a mammal species within the Soricidae family, with a distribution spanning parts of Asia.
Understanding the evolutionary history and genetic makeup of species like N. elegans is crucial for biodiversity research.

Purpose of the Study:

To sequence and characterize the complete mitochondrial genome of Nectogale elegans.
To elucidate the phylogenetic position of N. elegans within the Soricidae family using molecular data.

Main Methods:

Whole mitochondrial genome sequencing of Nectogale elegans.
Bioinformatic analysis of the mitochondrial genome, including gene content and structure.
Phylogenetic tree construction using Bayesian inference and maximum likelihood methods based on concatenated protein-coding genes.

Main Results:

The complete mitochondrial genome of N. elegans was determined to be 17,460 base pairs.
The genome contains 13 protein-coding genes, 22 tRNA genes, 2 ribosomal RNA genes, and a non-coding region, consistent with other mammalian mitochondrial genomes.
Phylogenetic analyses supported the divergence of Crocidurinae before Soricinae and indicated an earlier differentiation of Sorex unguiculatus compared to N. elegans.

Conclusions:

The mitochondrial genome sequence provides a valuable resource for future studies on N. elegans and related species.
Phylogenetic results offer insights into the evolutionary history and relationships within the Soricidae family.
This study contributes to the understanding of mammalian mitochondrial genome evolution and shrew systematics.