Results 51 to 60 of about 28,232 (129)
Eragrostis curvula (Schrad.) Nees (weeping lovegrass) is an apomictic species native to Southern Africa that is used as forage grass in semiarid regions of Argentina.
Diego Zappacosta +10 more
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Genetic tests of ancient asexuality in Root Knot Nematodes reveal recent hybrid origins
Background The existence of "ancient asexuals", taxa that have persisted for long periods of evolutionary history without sexual recombination, is both controversial and important for our understanding of the evolution and maintenance of sexual ...
Lunt David H
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The wide distribution of Frankliniella occidentalis is largely due to its extreme temperature adaptability. In current studies, most scholars consider environmental changes to be the main factor affecting insect temperature adaptation.
Lin Shu +3 more
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Data from: Molecular evidence for the first records of facultative parthenogenesis in elapid snakes.
Parthenogenesis is a form of asexual reproduction by which embryos develop from unfertilized eggs. Parthenogenesis occurs in reptiles, however is not yet known to occur in the widespread elapid snakes (Elapidae), which include well-known taxa such as ...
Allen, Luke +2 more
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The role of parthenogenesis in snakes
Parthenogenesis, or the production of embryos from unfertilized eggs, is a form of reproduction that occurs predominantly in different taxa of invertebrates where various types of such reproduction are recognized. Some animal species consist exclusively,
D'Ardes, Anna
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Mating System and Facultative Parthenogenesis in the Termite Reticulitermes speratus [PDF]
Both Social Hymenoptera (ants, bees and wasps) and Isoptera (termites) have independently evolved eusociality based on similar colony structures. In social Hymenoptera, queens found their colonies either solitarity or together with other newly mated ...
Matsuura, Kenji
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Parthenogenesis in birds: a review
Parthenogenesis or ‘virgin birth’ is embryonic development in unfertilized eggs. It is a routine means of reproduction in many invertebrates. However, even though parthenogenesis occurs naturally in even more advanced vertebrates, like birds, it is ...
R Ramachandran, C D McDaniel
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Background The evolution of differences in gamete size and number between sexes is a cornerstone of sexual selection theories. The green macroalga Ulva, with incipient anisogamy and parthenogenetic gametes, provides a unique system to investigate ...
Xiaojie Liu +6 more
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Parents can invest in offspring by transferring environmental factors, such as nutrients or diet‐derived defence chemicals, into eggs or embryos. However, in systems where females can reproduce facultatively without a male (facultative parthenogenesis ...
Ana Caroline Oliveira Vasconcelos +2 more
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The emerging phylogenetic pattern of parthenogenesis in snakes
Parthenogenesis occurs across a variety of vertebrate taxa. Within squamate reptiles (lizards and snakes), a group for which the largest number of cases has been documented, both obligate and facultative types of parthenogenesis exists, although the ...
Warren Booth, Gordon W Schuett
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