Some tardigrades from Nepal (Asia) with integrative description of Macrobiotus wandae sp. nov. (Macrobiotidae: hufelandi group)

Pushpalata Kayastha , Duygu Berdi , Monika Mioduchowska , Magdalena Gawlak , Aleksandra Łukasiewicz , Bartłomiej Gołdyn , Łukasz Kaczmarek

Abstract

Global knowledge of tardigrade diversity is limited, and there still are regions with poorly studied fauna, such as Nepal. We applied an integrative taxonomy approach to describe a new tardigrade species from this area. The presented analysis was based on morphological and morphometrical data (using both light and scanning electron microscopy) and combined with multilocus molecular data (nuclear barcode sequences, i.e. 18S rRNA, 28S rRNA and ITS-2, and one mitochondrial COI sequences). The p-distances enabled an independent verification of Macrobiotus wandae sp. nov. as a species new to science. Molecular data allowed us to determine the phylogenetic position of Mac. wandae sp. nov. within the hufelandi group. Based on egg morphology, i.e. porous egg chorion and processes in shape of cones with terminal discs, new species is most similar to Mac. biserovi, Mac. denticulus, Mac. diversus, Mac. glebkai, Mac. macrocalix, Mac. maculatus and Mac. ramoli. But it differs from them mainly by some morphological and morphometrical characters of eggs (number of egg processes on circumference, details of egg shell sculpture, and morphol ogy of terminal discs of eggs) and adults (oral cavity armature type, morphology of lunule and presence or absence of leg granulation). Moreover, we report from Nepal six other tardigrade taxa: Calohypsibius cf. maliki, Echiniscus blumi, Echiniscus nepalensis, Mesobiotus cf. furciger, Richtersius coronifer and Stellariscus cf. latifasciatus.
Author Pushpalata Kayastha
Pushpalata Kayastha,,
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, Duygu Berdi
Duygu Berdi,,
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, Monika Mioduchowska (FB / DGB | DMPR)
Monika Mioduchowska,,
- Katedra Genetyki i Biosystematyki
, Magdalena Gawlak
Magdalena Gawlak,,
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, Aleksandra Łukasiewicz
Aleksandra Łukasiewicz,,
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, Bartłomiej Gołdyn
Bartłomiej Gołdyn,,
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, Łukasz Kaczmarek
Łukasz Kaczmarek,,
-
Journal seriesAnnales Zoologici, ISSN 0003-4541, e-ISSN 1734-1833, (N/A 40 pkt)
Issue year2020
Vol70
No1
Pages121-142
Publication size in sheets1.05
Keywords in Englishwater bears, Tardigrada, Eutardigrada, Heterotardigrada, systematics, taxonomy, DNA barcoding
ASJC Classification1105 Ecology, Evolution, Behavior and Systematics
DOIDOI:10.3161/00034541ANZ2020.70.1.007
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 16-04-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.708; WoS Impact Factor: 2018 = 0.841 (2) - 2018=0.795 (5)
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