title: The complete mitochondrial genome of the mudsnail Cipangopaludina cathayensis (Gastropoda: Viviparidae).
abstract: We present the complete mitochondrial genome of Cipangopaludina cathayensis in this study. The mitochondrial genome is 17,157 bp in length, containing 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes. All of them are encoded on the heavy strand except 7 tRNA genes on the light strand. Overall nucleotide compositions of the light strand are 44.51% of A, 26.74% of T, 20.48% of C and 8.28% of G. All the protein-coding genes start with ATG initiation codon except ATP6 with ATA and ND4 with TTG, and 2 types of termination codons are TAA (ATP6, ND2, COX1, COX2, ATP8, ND1, ND6, Cytb, COX3, ND4) and TAG (ND4L, ND5, ND3). There are 29 intergenic spacers and 5 gene overlaps. The tandem repeat sequences are observed in COX2, tRNA(Asp), ATP6, tRNA(Cys), S-rRNA, ND1, Cytb, ND4 and COX3 genes. Gene arrangement and distribution are different from the typical vertebrates. The absence of D-loop is consistent with the Gastropoda, but at least one lengthy non-coding region is essential regulatory element for the initiation of transcription and replication.
authors.affiliation: a College of Animal Science, South China Agricultural University , Guangzhou , China .
authors.forename: Huirong
authors.initials: H
authors.lastname: Yang
authors.affiliation: b Institute of Tropical and Subtropical Ecology, South China Agricultural University , Guangzhou , China , and.|c Key Laboratory of Agro-Environment in the Tropics , Ministry of Agriculture , Guangzhou , China.
authors.forename: Jia-En
authors.initials: JE
authors.lastname: Zhang
authors.affiliation: b Institute of Tropical and Subtropical Ecology, South China Agricultural University , Guangzhou , China , and.
authors.forename: Hao
authors.initials: H
authors.lastname: Luo
authors.affiliation: b Institute of Tropical and Subtropical Ecology, South China Agricultural University , Guangzhou , China , and.
authors.forename: Mingzhu
authors.initials: M
authors.lastname: Luo
authors.affiliation: b Institute of Tropical and Subtropical Ecology, South China Agricultural University , Guangzhou , China , and.
authors.forename: Jing
authors.initials: J
authors.lastname: Guo
authors.affiliation: b Institute of Tropical and Subtropical Ecology, South China Agricultural University , Guangzhou , China , and.
authors.forename: Zhixin
authors.initials: Z
authors.lastname: Deng
authors.affiliation: b Institute of Tropical and Subtropical Ecology, South China Agricultural University , Guangzhou , China , and.|c Key Laboratory of Agro-Environment in the Tropics , Ministry of Agriculture , Guangzhou , China.
authors.forename: Benliang
authors.initials: B
authors.lastname: Zhao
mesh_terms: D000818:Animals; D001482:Base Composition / Q000235:genetics; D020029:Base Pairing / Q000235:genetics; D002874:Chromosome Mapping; D049851:Gastropoda / Q000235:genetics*; D050259:Genes, Mitochondrial; D054629:Genome, Mitochondrial; D012335:RNA, Ribosomal / Q000235:genetics; D012343:RNA, Transfer / Q000235:genetics
chemical_list: D012335:RNA, Ribosomal; D012343:RNA, Transfer
keywords: Cipangopaludina cathayensis; NGS technique; mitochondrial genome; viviparidae