Results 141 to 150 of about 315 (167)
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Zoological Science, 2021
The genus Mesobiotus was separated from the genus Macrobiotus in 2016 and the name referred to its phylogenetic position among the family Macrobiotidae; however, knowledge of the reproductive behavior of this genus is limited compared to those of Paramacrobiotus and Macrobiotus. This study comprehensively provides the reproductive traits, including the
Kenta, Sugiura, Midori, Matsumoto
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The genus Mesobiotus was separated from the genus Macrobiotus in 2016 and the name referred to its phylogenetic position among the family Macrobiotidae; however, knowledge of the reproductive behavior of this genus is limited compared to those of Paramacrobiotus and Macrobiotus. This study comprehensively provides the reproductive traits, including the
Kenta, Sugiura, Midori, Matsumoto
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An opinion on the genus Fujiscon Ito, 1991 (Eutardigrada, Hypsibiidae)
Zootaxa, 2003The structure of the claws of the genus Fujiscon and the validity of this genus are discussed. According to the authors one can conclude that the claws of Fujiscon are of Hypsibius type with an evident septum between the common basal portion and the secondary branch.
Pilato, Giovanni, Binda, Maria Grazia
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Arthropod Structure & Development, 2019
In this study, we describe the female reproductive system organization and oogenesis in the eutardigrade Thulinius ruffoi. Light, confocal and electron microscopy was used in this study. During oogenesis, three phases can be distinguished: previtellogenesis, vitellogenesis, and choriogenesis.
Kamil, Janelt +2 more
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In this study, we describe the female reproductive system organization and oogenesis in the eutardigrade Thulinius ruffoi. Light, confocal and electron microscopy was used in this study. During oogenesis, three phases can be distinguished: previtellogenesis, vitellogenesis, and choriogenesis.
Kamil, Janelt +2 more
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Zoologica Scripta, 2005
Combined analyses of morphological and molecular data were used to resolve phylogenetic relationships within Macrobiotidae (Eutardigrada). Morphological data were analysed using a cladistic approach with a matrix comprising 15 taxa with 17 characters to obtain a phylogenetic reconstruction.
GUIDETTI, Roberto +3 more
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Combined analyses of morphological and molecular data were used to resolve phylogenetic relationships within Macrobiotidae (Eutardigrada). Morphological data were analysed using a cladistic approach with a matrix comprising 15 taxa with 17 characters to obtain a phylogenetic reconstruction.
GUIDETTI, Roberto +3 more
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Zoological Science, 2019
Reproductive strategy is an important aspect of biological diversity. In tardigrades, several reproductive modes, including sexual reproduction, are known. However, tardigrade mating behavior has been observed only rarely in most species, and in some cases, especially in the freely ovipositing eutardigrades, remains entirely unknown.
Kenta, Sugiura +5 more
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Reproductive strategy is an important aspect of biological diversity. In tardigrades, several reproductive modes, including sexual reproduction, are known. However, tardigrade mating behavior has been observed only rarely in most species, and in some cases, especially in the freely ovipositing eutardigrades, remains entirely unknown.
Kenta, Sugiura +5 more
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Chromosome Research, 2002
This work represents the first attempt to define tardigrade chromosomes using banding techniques. Macrobiotus richtersi, a eutardigrade morphospecies with amphimictic diploid and thelytokous triploid cytotypes, was used as a model. Prime consideration was given to oocyte chromosomes because they are larger than those of spermatocytes and of mitotic ...
REBECCHI, Lorena +2 more
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This work represents the first attempt to define tardigrade chromosomes using banding techniques. Macrobiotus richtersi, a eutardigrade morphospecies with amphimictic diploid and thelytokous triploid cytotypes, was used as a model. Prime consideration was given to oocyte chromosomes because they are larger than those of spermatocytes and of mitotic ...
REBECCHI, Lorena +2 more
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A new species in the genus Milnesium (Eutardigrada) from USA (North Carolina)
ZootaxaDuring recent research on autofluorescence in tardigrades a new species of Milnesium was discovered on the campus of Warren Wilson College (North Carolina, USA). We provide an integrative description of this new species based on morphology and genetics (COI, 18S rRNA and 28S rRNA sequences). The new species has six peribuccal lamellae, a smooth cuticle
PAUL J. BARTELS +5 more
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Macrobiotus joannae, primo Macrobiotidae ermafrodito (Eutardigrada).
1983Viene segnalato il primo caso di specie ermafrodita nella famiglia Macrobiotidae. Come negli altri casi accertati, anche macrobiotus joannae è provvisto di ovotestis. Oltre che nei Macrobiotidae, altre specie ermafrodite sono state riscontrate nella famiglia Hypsibiidae e, probabilmente, Amphibolidae (tutti Eutardigradi).
BERTOLANI, Roberto +2 more
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