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Sequencing and analysis of the complete mitochondrial genome of the masked shrew (Sorex caecutiens) from China.

ABSTRACT: The complete mitogenome sequence of the masked shrew (Sorex caecutiens) was determined using long PCR. The genome was 17,096?bp in length and contained 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, one origin of L strand replication, and one control region. The overall base composition of the heavy strand is A (32.9%), C (24.5%), T (29.3%), and G (13.3%). The base compositions present clearly the A-T skew, which is most obviously in the control region and protein-coding genes. The extended termination-associated sequence domain, the central conserved domain and the conserved sequence block domain are defined in the mitochondrial genome control region of the masked shrew. Mitochondrial genome analyses based on MP, ML, NJ, and Bayesian analyses yielded identical phylogenetic trees. The five Sorex species formed a monophyletic group with the high bootstrap value (100%) in all examinations.

SUBMITTER: Jin ZM

PROVIDER: S-EPMC7799685 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Sequencing and analysis of the complete mitochondrial genome of the masked shrew (Sorex caecutiens) from China.

Jin Zhi-Min ZM Zhu Liu L Ma Jian-Zhang JZ

Mitochondrial DNA. Part B, Resources 20170731 2

The complete mitogenome sequence of the masked shrew (Sorex caecutiens) was determined using long PCR. The genome was 17,096 bp in length and contained 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, one origin of L strand replication, and one control region. The overall base composition of the heavy strand is A (32.9%), C (24.5%), T (29.3%), and G (13.3%). The base compositions present clearly the A-T skew, which is most obviously in the control region and protei ...[more]

PMID: 33473872

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