Dataset Information

The complete mitochondrial genome of the Antarctic fairy shrimp Branchinectagaini Daday, 1910 (Branchiopoda, Anostraca, Branchinectidae).

ABSTRACT: The complete mitochondrial genome of Antarctic fairy shrimp Branchinectagaini Daday, 1910 was sequenced, assembled and annotated using next-generation sequencing technology. The mitogenome of B.gaini is circular at 15,536 bp in length, consisting of 13 protein-coding genes, 23 tRNAs, two rRNAs and two major non-coding regions. In particular, there are two tRNA^Gly genes and one non-coding region between these two tRNA^Gly genes. A phylogenetic tree was constructed using concatenated amino acid sequences of 13 protein-coding genes. It reveals that B.gaini is clustered with the Anostraca group within the Branchiopoda clade. This study helps us understand the evolution of Anostraca.

SUBMITTER: Jo E

PROVIDER: S-EPMC9836622 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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The complete mitochondrial genome of the Antarctic fairy shrimp Branchinectagaini Daday, 1910 (Branchiopoda, Anostraca, Branchinectidae).

Jo Euna E Kim Jin-Hyoung JH Ko Young Wook YW Kim Sanghee S Kang Seunghyun S

Biodiversity data journal 20221018

The complete mitochondrial genome of Antarctic fairy shrimp Branchinectagaini Daday, 1910 was sequenced, assembled and annotated using next-generation sequencing technology. The mitogenome of B.gaini is circular at 15,536 bp in length, consisting of 13 protein-coding genes, 23 tRNAs, two rRNAs and two major non-coding regions. In particular, there are two tRNAGly genes and one non-coding region between these two tRNAGly genes. A phylogenetic tree was construct ...[more]

PMID: 36761499

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Project description:BackgroundMediterranean temporary water bodies are important reservoirs of biodiversity and host a unique assemblage of diapausing aquatic invertebrates. These environments are currently vanishing because of increasing human pressure. Chirocephalus kerkyrensis is a fairy shrimp typical of temporary water bodies in Mediterranean plain forests and has undergone a substantial decline in number of populations in recent years due to habitat loss. We assessed patterns of genetic connectivity and phylogeographic history in the seven extant populations of the species from Albania, Corfu Is. (Greece), Southern and Central Italy.Methodology/principal findingsWe analyzed sequence variation at two mitochondrial DNA genes (Cytochrome Oxidase I and 16s rRNA) in all the known populations of C. kerkyrensis. We used multiple phylogenetic, phylogeographic and coalescence-based approaches to assess connectivity and historical demography across the whole distribution range of the species. C. kerkyrensis is genetically subdivided into three main mitochondrial lineages; two of them are geographically localized (Corfu Is. and Central Italy) and one encompasses a wide geographic area (Albania and Southern Italy). Most of the detected genetic variation (≈81%) is apportioned among the aforementioned lineages.Conclusions/significanceMultiple analyses of mismatch distributions consistently supported both past demographic and spatial expansions with the former predating the latter; demographic expansions were consistently placed during interglacial warm phases of the Pleistocene while spatial expansions were restricted to cold periods. Coalescence methods revealed a scenario of past isolation with low levels of gene flow in line with what is already known for other co-distributed fairy shrimps and suggest drift as the prevailing force in promoting local divergence. We recommend that these evolutionary trajectories should be taken in proper consideration in any effort aimed at protecting Mediterranean temporary water bodies.

Dataset Information

The complete mitochondrial genome of the Antarctic fairy shrimp Branchinectagaini Daday, 1910 (Branchiopoda, Anostraca, Branchinectidae).

Publications

The complete mitochondrial genome of the Antarctic fairy shrimp <i>Branchinectagaini</i> Daday, 1910 (Branchiopoda, Anostraca, Branchinectidae).

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