The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)

This study reports the complete mitochondrial genome of Paracondylactis hertwigi (Actiniidae) for the first time. The mitogenome is 19,880 bp in length and contains 17 annotated genes, including 13 protein-coding genes, one nonconventional mitochondrial protein gene (ORF), two ribosomal RNA genes, a...

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Main Authors: Seung-Joon Lee, Sang-Hwa Lee, Hyo-Jin Yu, In-Young Cho, Sung-Jin Hwang
Format: Article
Language:English
Published: Taylor & Francis Group 2025-08-01
Series:Mitochondrial DNA. Part B. Resources
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Online Access:https://www.tandfonline.com/doi/10.1080/23802359.2025.2528565
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author Seung-Joon Lee
Sang-Hwa Lee
Hyo-Jin Yu
In-Young Cho
Sung-Jin Hwang
author_facet Seung-Joon Lee
Sang-Hwa Lee
Hyo-Jin Yu
In-Young Cho
Sung-Jin Hwang
author_sort Seung-Joon Lee
collection DOAJ
description This study reports the complete mitochondrial genome of Paracondylactis hertwigi (Actiniidae) for the first time. The mitogenome is 19,880 bp in length and contains 17 annotated genes, including 13 protein-coding genes, one nonconventional mitochondrial protein gene (ORF), two ribosomal RNA genes, and two transfer RNA genes. The gene content, order, and genome length are consistent with those of other sea anemones. Notably, the COX1 and ND5 genes each consist of two exons separated by an intron, with ND1 and ND3 genes encoded within the ND5 intron, confirming the conservation of this unique mitochondrial genomic structure in Actiniaria. Phylogenetic analysis revealed that Paracondylactis is paraphyletic, with P. sinensis clustering outside the genus alongside species of the family Phymanthidae. These results align with previous findings of paraphyly within Actiniidae and support the hypothesis that the family is polyphyletic within the superfamily Actinioidea, reflecting limitations in morphology-based classifications. Further studies integrating morphological and molecular phylogenetic approaches are needed to clarify the taxonomic relationships within the genus Paracondylactis. Additionally, the mitogenomic data of P. hertwigi may serve as a valuable resource for the genetic management and conservation of tidal flat organisms in Korea, which are increasingly threatened by coastal development and climate change.
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spelling doaj-art-a39cbef4bcfd434d90475d4a35ec5cbf2025-08-20T03:08:35ZengTaylor & Francis GroupMitochondrial DNA. Part B. Resources2380-23592025-08-0110871471810.1080/23802359.2025.2528565The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)Seung-Joon Lee0Sang-Hwa Lee1Hyo-Jin Yu2In-Young Cho3Sung-Jin Hwang4Department of Life Science, Woosuk University, Jincheon, South KoreaInvertebrate Diversity Institute (InDI), Cheongju, South KoreaDepartment of Life Science, Woosuk University, Jincheon, South KoreaNational Marine Biodiversity Institute of Korea, Seocheon, South KoreaDepartment of Life Science, Woosuk University, Jincheon, South KoreaThis study reports the complete mitochondrial genome of Paracondylactis hertwigi (Actiniidae) for the first time. The mitogenome is 19,880 bp in length and contains 17 annotated genes, including 13 protein-coding genes, one nonconventional mitochondrial protein gene (ORF), two ribosomal RNA genes, and two transfer RNA genes. The gene content, order, and genome length are consistent with those of other sea anemones. Notably, the COX1 and ND5 genes each consist of two exons separated by an intron, with ND1 and ND3 genes encoded within the ND5 intron, confirming the conservation of this unique mitochondrial genomic structure in Actiniaria. Phylogenetic analysis revealed that Paracondylactis is paraphyletic, with P. sinensis clustering outside the genus alongside species of the family Phymanthidae. These results align with previous findings of paraphyly within Actiniidae and support the hypothesis that the family is polyphyletic within the superfamily Actinioidea, reflecting limitations in morphology-based classifications. Further studies integrating morphological and molecular phylogenetic approaches are needed to clarify the taxonomic relationships within the genus Paracondylactis. Additionally, the mitogenomic data of P. hertwigi may serve as a valuable resource for the genetic management and conservation of tidal flat organisms in Korea, which are increasingly threatened by coastal development and climate change.https://www.tandfonline.com/doi/10.1080/23802359.2025.2528565Paracondylactis hertwigisea anemoneActiniidaecomplete mitogenomephylogenetic analysis
spellingShingle Seung-Joon Lee
Sang-Hwa Lee
Hyo-Jin Yu
In-Young Cho
Sung-Jin Hwang
The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)
Mitochondrial DNA. Part B. Resources
Paracondylactis hertwigi
sea anemone
Actiniidae
complete mitogenome
phylogenetic analysis
title The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)
title_full The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)
title_fullStr The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)
title_full_unstemmed The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)
title_short The complete mitochondrial genome of sand anemone, Paracondylactis hertwigi (Wassilieff, 1908)
title_sort complete mitochondrial genome of sand anemone paracondylactis hertwigi wassilieff 1908
topic Paracondylactis hertwigi
sea anemone
Actiniidae
complete mitogenome
phylogenetic analysis
url https://www.tandfonline.com/doi/10.1080/23802359.2025.2528565
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