Biochimie & Biochimie Analytique

Abstrait

Mitochondrial Genome Analysis and Phylogeny and Divergence Time Evaluation of the Strix aluco

David Smith1, Renna Roy2*

In this study, a complete mitochondrial genome of the Strix aluco was reported for the first time, with a total length of 18,632 bp. There were 37 genes, including 22 tRNAs, 2 rRNAs, 13 Protein-Coding Genes (PCGs), and 2 non-coding control regions (D-loop). The second-generation sequencing of the complete mitochondrial genome of the S. aluco was conducted using the Illumina platform, and then Tytoninae was used as the out-group, PhyloSuite software was applied to build the ML-tree and BI-tree of the Strigiformes, and finally, the divergence time tree was constructed using Beast 2.6.7 software, the age of Miosurniadiurnafossil-bearing sediments (6.0~9.5 mA) was set as the internal correction point. The common ancestor of the Strix was confirmed to have diverged during the Pleistocene (2.58~0.01 mA). The dramatic uplift of the Qinling Mountains in the Middle Pleistocene and the climate oscillation of the Pleistocene together caused Strix divergence between the northern and southern parts of mainland China. The isolation of glacial-interglacial rotation and glacier refuge was the main reason for the divergence of the common ancestor of the Strix uralensis and the S. aluco during this period. This study provides a reference for the evolution history of the Strix.