Characterisation of the complete mitochondrial genome of Helice wuana (Grapsoidea: Varunidae) and comparison with other Brachyuran crabs

被引：31

作者：

Tang, Bo-Ping ^{[1
]}

Liu, Yu ^{[1
]}

Xin, Zhao-Zhe ^{[1
]}

Zhang, Dai-Zhen ^{[1
]}

Wang, Zheng-Fei ^{[1
]}

Zhu, Xiao-Yu ^{[1
]}

Wang, Ying ^{[1
]}

Zhang, Hua-Bin ^{[1
]}

Zhou, Chun-Lin ^{[1
]}

Chai, Xin-Yue ^{[1
]}

Liu, Qiu-Ning ^{[1
]}

机构：

[1] Yancheng Teachers Univ, Jiangsu Key Lab Bioresources Saline Soils, Jiangsu Synthet Innovat Ctr Coastal Bioagr,Sch Oc, Jiangsu Prov Key Lab Coastal Wetland Bioresources, Yancheng 224007, Peoples R China

来源：

GENOMICS | 2018年 / 110卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Brachyura; Varunidae; Helice wuana; Mitogenome; Phylogeny; GENE REARRANGEMENTS; CRUSTACEA DECAPODA; MOLECULAR PHYLOGENY; COMPLETE MITOGENOME; CLASSIFICATION; DUPLICATIONS; EVOLUTION; SEQUENCE; REVEALS; ORIGIN;

D O I：

10.1016/j.ygeno.2017.10.001

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The mitochondrial genome (mitogenome) provides important information for phylogenetic analysis and understanding evolutionary origins. Herein, we sequenced, annotated, and characterised the mitogenome of the crab Helice wuana to better understand its molecular evolution and phylogeny. The 16,359 bp mitogenome includes 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes and one control region. The genome composition is highly A + T biased 68.42%, and exhibits a negative AT-skew ( - 0.036) and GC-skew ( - 0.269) among Brachyura crabs. Gene rearrangements were detected, as was tandem duplication followed by random loss, which explains the translocation of mitochondrial genes. Phylogenetic analysis showed that H. wuana and H. tientsinensis clustered on one branch with high nodal support values. These results confirm that the placement of H. wuana within the Varunidae family of Thoracotrematan crabs. This study will provided a better understanding for gene rearrangements and crab evolution in the further.

引用

页码：221 / 230

页数：10

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