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Phylogenetic position of the genus Manunema (Nematodaстатья
- Авторы: Jeong R., Tchesunov A.V.
- Журнал: Diversity
- Том: 15
- Год издания: 2023
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- DOI: 10.3390/d15080914
- Аннотация: During an investigation of a natural sandy beach on Jeju Island, South Korea, a rare species of marine nematode belonging to the genus Manunema was discovered and is now being reported. Up until now, no molecular sequences of this genus have been available, and its position within the nematode system has been a subject of dispute. Currently, Manunema is classified within the order Plectida, either as the only genus of the family Peresianidae in the superfamily Hapliplectoidea or directly as a genus of the family Leptolaimidae. Here, we provide a redescription of Manunema proboscidis Gerlach, 1957, which was found off Jeju Island, South Korea. We also conduct an in-depth investigation of its peculiar morphology, with a particular focus on the reproductive system type observed within the species. Additionally, we examine the phylogenetic relationship of the ge-nus using 18S rRNA sequences. Partial mtCOI, nearly complete sequences of the 18S ribosomal RNA gene, as well as partial 28S (D2-D3 region) gene are provided. Morphologically, the presence of tubular precloacal supplements (shared by superfamily Leptolaimoidea and not Haliplectoidea) and antidromously reflected ovaries of females in Manunema (shared by the order Plectida and not Desmoscolecida) may have taxonomic significance. Our phylogenetic trees based on 18S rRNA also reflected this, including Manunema in a well-supported monophyletic clade of the family Leptolaimidae.
- Добавил в систему: Чесунов Алексей Валерьевич
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | pdf-версия статьи | 2023_Jeong_Tchesunov_Manunema_d22uDEI.pdf | 3,1 МБ | 24 июля 2024 [AVTchesunov] |
| 2. | pdf-версия статьи | 2023_Jeong_Tchesunov_Manunema.pdf | 3,1 МБ | 26 августа 2023 [AVTchesunov] |