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Integrative description of a new Dactylobiotus (Eutardigrada: Parachela) from Antarctica that reveals an intraspecific variation in tardigrade egg morphology

Cited 5 time in wos
Cited 5 time in scopus
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Title
Integrative description of a new Dactylobiotus (Eutardigrada: Parachela) from Antarctica that reveals an intraspecific variation in tardigrade egg morphology
Other Titles
남극 신종 완보동물 Dactylobiotus ovimutans 기재를 통한 알 형태의 종내 다양성에 대한 연구
Authors
Kim, Ji-Hoon
Kim, Sanghee
McInnes, Sandra J.
Zawierucha, Krzysztof
Rho, Hyun Soo
Kang, Pil-Mo
Park, Tae-Yoon S.
Subject
Science & Technology
Keywords
Antarctica; Biodiversity; King George Island; Laboratory culture; Morphological variation; Tardigrade
Issue Date
2020-06
Citation
Kim, Ji-Hoon, et al. 2020. "Integrative description of a new Dactylobiotus (Eutardigrada: Parachela) from Antarctica that reveals an intraspecific variation in tardigrade egg morphology". SCIENTIFIC REPORTS, 10(9122): 1-11.
Abstract
Tardigrades constitute one of the most important group in the challenging Antarctic terrestrial ecosystem. Living in various habitats, tardigrades play major roles as consumers and decomposers in the trophic networks of Antarctic terrestrial and freshwater environments; yet we still know little about their biodiversity. The Eutardigrada is a species rich class, for which the eggshell morphology is one of the key morphological characters. Tardigrade egg morphology shows a diverse appearance, and it is known that, despite rare, intraspecific variation is caused by seasonality, epigenetics, and external environmental conditions. Here we report Dactylobiotus ovimutans sp. nov. from King George Island, Antarctica. Interestingly, we observed a range of eggshell morphologies from the new species, although the population was cultured under controlled laboratory condition. Thus, seasonality, environmental conditions, and food source are eliminated, leaving an epigenetic factor as a main cause for variability in this case.
URI
https://repository.kopri.re.kr/handle/201206/11967
DOI
http://dx.doi.org/10.1038/s41598-020-65573-1
Appears in Collections  
2020-2020, Advancement into unexplored areas of North Greenland through paleoenvironment and animal evolution research (20-20) / Park, Tae-Yoon S. (PE20220)
2020-2020, Ecophysiology of KGI terrestrial organisms to reveal mechanisms of adaptation to changing environment (20-20) / Lee, Hyoungseok (PE20170)
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