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. 2024 Aug 14;15(8):1076.
doi: 10.3390/genes15081076.

The Characterization of the Mitochondrial Genome of Fulgoraria rupestris and Phylogenetic Considerations within the Neogastropoda

Jiale Ma  1   2   3 , Xiangli Dong  2 , Kaida Xu  1   3 , Jiaying Zeng  1   3 , Zhongming Wang  1   3 , Jiji Li  2
Affiliations

The Characterization of the Mitochondrial Genome of Fulgoraria rupestris and Phylogenetic Considerations within the Neogastropoda

Jiale Ma et al. Genes (Basel). .

Abstract

Fulgoraria rupestris is a predatory marine gastropod belonging to Neogastropoda and possessing considerable taxonomic significance. However, research on this species remains limited. We acquired the complete mitochondrial genome of F. rupestris through second-generation sequencing and conducted an analysis of its genome structural features. The mitochondrial genome of F. rupestris spans a total length of 16,223 bp and encompasses 37 genes (13 protein-coding genes (PCGs), 22 transfer RNAs, and 2 ribosomal RNAs). Notably, most tRNAs exhibit the typical cloverleaf structure, but there is an absence of the Dihydrouridine (DHU) arm in the trnS1 and trnS2 genes. The A + T content is 68.67%, indicating a pronounced AT bias. Additionally, we conducted a selection pressure analysis on the mitochondrial genomes of four species within Volutidae, revealing that all PCGs are subjected to purifying selection. In comparison to other species within Neogastropoda, F. rupestris shares an identical gene arrangement. Additionally, based on mitochondrial genome sequences of the 13 PCGs from 50 species within Neogastropoda, we constructed a phylogenetic tree. The phylogenetic tree indicates F. rupestris forms a clade with species within the family Volutidae (Cymbium olla, Neptuneopsis gilchristi, and Melo melo). This study serves as a valuable reference for future research on F. rupestris, offering insights for the upcoming phylogenetic and taxonomic classification within Neogastropoda. Furthermore, the findings provide valuable information for the development of genetic resources in this context.

Keywords: Fulgoraria rupestris; Neogastropoda; mitochondrial genome; phylogenetic analysis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Complete mitogenome map of F. rupestris.
Figure 2
Figure 2
The secondary structure of F. rupestris mitochondrial tRNA.
Figure 3
Figure 3
Amino acid composition in the mitochondrial genome of F. rupestris.
Figure 4
Figure 4
RSCU in the mitochondrial genome of F. rupestris.
Figure 5
Figure 5
Analysis of the selection pressure of Volutidae; ka refers to non-synonymous substitution value, and ks refers to synonymous substitution value.
Figure 6
Figure 6
The black circles represent the mitochondrial gene sequences of the remaining 44 species.
Figure 7
Figure 7
The phylogenetic tree, constructed based on the 13 PCGs of 50 Neogastropoda species, displays support values (BI, ML) for each node. (ML/BI; the range of ML support values is from 0 to 100, while the range of BI support values is from 0 to 1.)
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