Abstract
The complete mitochondrial genome sequence of the hybrid of Acipenser schrenckii (♀) × Huso dauricus (♂) (A × H) was first determined by a PCR-based sequencing method in this study. The mitochondrial was 16 687 bp in length, including 13 protein genes, two ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and one control region. All genes were encoded on the heavy strain except for ND6 and eight tRNA genes. Base composition of the heavy strain was A (29.80%), T (24.42%), C (28.94%), G (16.82%), and with A + T bias of 54.26%. Compared with the complete mitochondrial genome of the parents, results showed the hybrid sturgeon was consistent with a maternal inheritance; however, we also found ND6 and tRNA-Glu which were species-specific for the male parent H. dauricus. The complete mitochondrial genome sequence of the A × H provided an important data set for further study in mitochondrial inheritance mechanism.
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