Mitochondrial genome sequencing of the Agetocera filicornis(Laboissiere,1927)and phylogenetic analysis
[Aim]To explore the structural characteristics of the mitochondrial genome of Agetocera filicornis(Laboissiere,1927),and the phylogenetic relationships within the Chrysomelinae subfamily.[Methods]The mitochondrial genome sequence of A.filicornis was determined using high-throughput sequencing methods.We selected 128 species from the subfamilies Chrysomelinae and Galerucinae as ingroups,and three species from the subfamily Eumolpinae as outgroups.The phylogenetic relationships within the Chrysomelinae Subfamily were reconstructed using maximum likelihood and Bayesian methods.[Results]The mitochondrial genome of A.filicornis is 15 814 bp in length,containing 37 genes(13 protein-coding genes,2 ribosomal RNA genes,and 22 transfer RNA genes)and a non-coding control region.The mitochondrial genome has a high AT content(76.6％)with a positive AT-skew(0.053)and a negative GC-skew(-0.252).Different phylogenetic analysis methods support Galerucinae as a monophyletic group and Chrysomelinae as a non-monophyletic group.[Conclusion]This study reports,for the first time,the complete mitochondrial genome of A.filicornis.By constructing the phylogenetic relationships within Chrysomelinae,we provide new mitochondrial genomic data that will contribute to a better understanding of the phylogeny between Chrysomelinae,Galerucinae,and A.filicornis.
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