Lamprotula leai is an important freshwater mussel for pearl production. Doubly Uniparental Inheritance (DUI) is one of the most striking exceptions to the general rule of strict maternal transmission of mitochondrial DNA (mtDNA) in animals, and characterized by the presence of gender鄄associated mtDNA lineages that are inherited through male (male鄄 transmitted or M type) or female (female鄄transmitted or F type) respectively. The complete mitochondrial genome of F type of Lamprotula leai was obtained using long and accurate polymerase chain reaction (LA鄄PCR) , shotgun sequencing. The genome contains 16, 530 base pairs and 13 protein鄄coding genes, 22 transfer RNA genes including 2 tRNA Ser and 2 tRNA Leu , anticodons are tRNA Leu1(UUR) = (TAA) , tRNA Leu2(CUN) = (TAG) , tRNA Ser1(AGN) = (TCT) , tRNA Ser2(UCN) = (TGA) , 2 ribosomal RNA genes, and 27 non鄄coding regions. The base composition for is 36. 34% A, 23. 94% T, 27. 17% C, 12. 55% G and 60. 28% (A+T). Most genes are encoded on the L strand while ND3-ND5, ND4L, CO玉-CO芋, ATP8, ATP6, tRNA Asp , tRNA His are encoded on the H strand. The structure and organization of mitochondrial genomes of L. leai and other six freshwater mussels were analyzed using comparative genomics and bioinformatics methods. Results showed that: (印) Strong bias is toward A+T for the F type genome of L. leai. (英) The striking mitochondrial genome difference in the size performed on the non鄄coding regions in all these freshwater mussels. (樱) The gene arrangement of L. leai is identical to that of Hyriopsis cumingii, but is different from that of Cristaria plicata, Lampsilis ornate, Pyganodon grandis, Quadrula quadrulaand and Venustaconcha ellipsiformis between CO域 and 12S rRNA. Therefore, the F type of freshwater
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