Results 31 to 40 of about 6,524 (176)
Parthenogenesis in scorpions: some history - new data
Parthenogenesis, a rare phenomenon in Chelicerates, apart from mites, is reviewed in scorpions, notably Tityus serrulatus Lutz & Mello from Brazil, Tityus columbianus (Thorell) from Colombia and Tityus metuendus Pocock from Peru and Brazil.
W. R. Lourenço
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Facultative parthenogenesis is important for mayflies with short alate stages because females are able to reproduce without mating. We studied facultative parthenogenesis in Ephoron eophilum, a mayfly with an extremely short alate stage.
Kazuki SEKINÉ, Koji TOJO, Yeon Jae BAE
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Diversity in the reproductive modes of European Daphnia pulicaria deviates from the geographical parthenogenesis. [PDF]
Multiple transitions to obligate parthenogenesis have occurred in the Daphnia pulex complex in North America. These newly formed asexual lineages are differentially distributed being found predominantly at high latitudes.
France Dufresne +4 more
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Facultative parthenogenesis validated by DNA analyses in the green anaconda (Eunectes murinus). [PDF]
In reptiles, the mode of reproduction is typically sexual. However, facultative parthenogenesis occurs in some Squamata, such as Komodo dragon (Varanus komodoensis) and Burmese python (Python bivittatus).
Hiroki Shibata +4 more
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Wolbachia is one of the most common intracellular bacteria; it infects a wide variety of insects, other arthropods, and some nematodes. Wolbachia is ordinarily transmitted vertically from mother to offspring and can manipulate physiology and reproduction
Nazar A. Shapoval +4 more
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Meiosis genes in
Background Thousands of parthenogenetic animal species have been described and cytogenetic manifestations of this reproductive mode are well known. However, little is understood about the molecular determinants of parthenogenesis.
Eads Brian D +2 more
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Penetrance of symbiont-mediated parthenogenesis is driven by reproductive rate in a parasitoid wasp [PDF]
Trichogramma wasps are tiny parasitoids of lepidopteran eggs, used extensively for biological control. They are often infected with the bacterial symbiont Wolbachia, which converts Trichogramma to an asexual mode of reproduction, whereby females develop ...
Amelia R.I. Lindsey, Richard Stouthamer
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Identifying and Engineering Genes for Parthenogenesis in Plants
Parthenogenesis is the spontaneous development of an embryo from an unfertilized egg cell. It naturally occurs in a variety of plant and animal species.
Kitty Vijverberg +2 more
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Parthenogenesis and the Evolution of Anisogamy [PDF]
Abstract Recently, it was pointed out [1] that classic models for the evolution of anisogamy do not take into account the possibility of parthenogenetic reproduction, even though sex is facultative in many relevant taxa (e.g. algae) that harbour both anisogamous and isogamous species.
Constable, George W A, Kokko, Hanna
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