Comparative analysis of the mitochondrial genomes of the family Mactridae (Mollusca: Venerida) and their phylogenetic implications

Ma, Peizhen; Liu, Yumeng; Wang, Jiahui; Chen, Ya; Zhang, Zhen; Zhang, Tao; Wang, Haiyan

doi:10.1016/j.ijbiomac.2023.126081

Cited by 2 publications

(5 citation statements)

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“…The other ten Mactridae species from 6 genera constituted another main clade, including four genera from subfamily Mactrinae (Mactrinula, Rangia, Mulinia, and Spisula), one genus from subfamily Lutrariinae (Lutraria), and one family from subfamily Anatinellidae (Raeta). Our results provided support for removing Mactrinula, Rangia, Mulinia, and Spisula out from subfamily Mactrinae [15]. Two Raeta species first clustered with Mactrinula dolabrata, prompting the attribution of Raeta to family Mactridae instead of Anatinellidae [44].…”

Section: Phylogeny and Gene Arrangement Analysissupporting

confidence: 52%

“…Anatinellidae (Raeta). Our results provided support for removing Mactrinula, Rangia, Mulinia, and Spisula out from subfamily Mactrinae [15]. Two Raeta species first clustered with Mactrinula dolabrata, prompting the attribution of Raeta to family Mactridae instead of Anatinellidae [44].…”

Section: Phylogeny and Gene Arrangement Analysissupporting

confidence: 52%

“…The genetic code was selected as "5 Invertebrate Mitochondrial". The boundaries of PCGs were determined by an ORF finder (https://www.ncbi.nlm.nih.gov/orffinder, accessed on 15 October 2023) and corrected manually by comparison with genes from the same family [15]. The mitochondrial genome circular map was drawn using the Proksee [26].…”

Section: Sequencing Assembly and Genome Annotationmentioning

confidence: 99%

“…OR897711, Figure 1). The mitogenome had the typical gene organization of Mactridae [15], including 13 PCGs (cox1, cox2, cox3, cytb, nad1, nad2, nad3, nad4, nad4l, nad5, nad6, atp6, and atp8), two rRNA genes (12S and 16S), and 22 tRNAs (Table 1). The nucleotide composition was 24.90% for A, 23.32% for G, 12.14% for C, and 39.64% for T, exhibiting an obvious (A + T)-bias of 64.54%.…”

Section: General Features Of Mitogenomementioning

confidence: 99%

“…Mitochondrial genomes have been proven effective in recognizing taxonomic and phylogenetic problems in Mactridae species. However, previous phylogenetic data were insufficient to address these issues adequately [15]. Mactra grandis (Gmelin, 1791), synonymous with Mactra mera (Reeve, 1854), is an edible large mactrid species distributed in tropical Indo-Pacific regions [14].…”

Section: Introductionmentioning

confidence: 99%

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Sequencing of the Complete Mitochondrial Genome of the Big Brown Mactra Clam, Mactra grandis (Venerida: Mactridae)

Ma,

Liu,

et al. 2024

Animals

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Mitochondrial genomes are playing an increasingly important role in molluscan taxonomy, germplasm, and evolution studies. The first complete mitochondrial genome of the commercial big brown mactra clam, Mactra grandis, was characterized using Illumina next-generation sequencing in this study. The 17,289 bp circular genome has a typical gene organization of 13 protein-coding genes (PCGs), 2 rRNAs, and 22 tRNAs, with an obvious (A + T)-bias of 64.54%. All PCGs exhibited a homogeneous bias in nucleotide composition with a (A + T)-bias, a positive GC skew, and a negative AT skew. Results of phylogenetic analysis showed that Mactra grandis was most closely related to Mactra cygnus. The functional gene arrangement of the two species was identical but different from other Mactra species. The congeneric relationships among Mactra species were demonstrated by genetic distance analysis. Additionally, the selective pressure analysis suggested that cox1 was highly efficient for discriminating closely related species in genus Mactra, while nad2 was the most appropriate marker for population genetic analysis.

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Section: Phylogeny and Gene Arrangement Analysissupporting

confidence: 52%

Section: Phylogeny and Gene Arrangement Analysissupporting

confidence: 52%