Ontogeny reversal and phylogenetic analysis of Turritopsis sp.5 (Cnidaria, Hydrozoa, Oceaniidae), a possible new species endemic to Xiamen, China
Li, Jun-yuan1,2; Guo, Dong-hui3; Wu, Peng-cheng3; He, Li-sheng1; He, Li-sheng(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Dept Life Sci, Sanya, Hainan, Peoples R China)
2018-01-08
发表期刊PEERJ
卷号6
产权排序第1完成单位
摘要

Ontogeny reversal, as seen in some cnidarians, is an unprecedented phenomenon in the animal kingdom involving reversal of the ordinary life cycle. Three species of Turritopsis have been shown to be capable of inverted metamorphosis, a process in which the pelagic medusa transforms back into a juvenile benthic polyp stage when faced with adverse conditions. Turritopsis sp.5 is a species of Turritopsis collected from Xiamen, China which presents a similar ability, being able to reverse its life cycle if injured by mechanical stress. Phylogenetic analysis based on both 16S rDNA and cytochrome c oxidase subunit I (COI) genetic barcodes shows that Turritopsis sp.5 is phylogenetically clustered in a clade separate from other species of Turritopsis. The genetic distance between T. sp.5 and the Japanese species T. sp.2 is the shortest, when measured by the Kimura 2-Parameter metric, and the distance to the New Zealand species T. rubra is the largest. An experimental assay on the induction of reverse development in this species was initiated by cutting medusae into upper and lower parts. We show, for the first time, that the two dissected parts have significantly different potentials to transform into polyps. Also, a series of morphological changes of the reversed life cycle can be recognised, including medusa stage, contraction stage I, contraction stage II, cyst, cyst with stolons, and polyp. The discovery of species capable of reverse ontogeny caused by unfavorable conditions adds to the available systems with which to study the cell types that contribute to the developmental reversal and the molecular mechanisms of the directional determination of ontogeny.

文章类型Article
关键词Turritopsis Reverse Development Medusa Hydroid China
WOS标题词Science & Technology
DOI10.7717/peerj.4225
URL查看原文
收录类别SCI
语种英语
关键词[WOS]Turritopsis ; Reverse development ; Medusa ; Hydroid ; China ; Jellyfish
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000423133200003
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文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/5919
专题深海科学研究部_深海生物学研究室_深海生物蛋白质组学及分子生物学研究组
通讯作者He, Li-sheng(Chinese Acad Sci, Inst Deep Sea Sci & Engn, Dept Life Sci, Sanya, Hainan, Peoples R China)
作者单位1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Dept Life Sci, Sanya, Hainan, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
3.Xiamen Univ, Coll Ocean & Earth Sci, Xiamen, Fujian, Peoples R China
第一作者单位中国科学院深海科学与工程研究所
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GB/T 7714
Li, Jun-yuan,Guo, Dong-hui,Wu, Peng-cheng,et al. Ontogeny reversal and phylogenetic analysis of Turritopsis sp.5 (Cnidaria, Hydrozoa, Oceaniidae), a possible new species endemic to Xiamen, China[J]. PEERJ,2018,6.
APA Li, Jun-yuan,Guo, Dong-hui,Wu, Peng-cheng,He, Li-sheng,&He, Li-sheng.(2018).Ontogeny reversal and phylogenetic analysis of Turritopsis sp.5 (Cnidaria, Hydrozoa, Oceaniidae), a possible new species endemic to Xiamen, China.PEERJ,6.
MLA Li, Jun-yuan,et al."Ontogeny reversal and phylogenetic analysis of Turritopsis sp.5 (Cnidaria, Hydrozoa, Oceaniidae), a possible new species endemic to Xiamen, China".PEERJ 6(2018).
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