Results 91 to 100 of about 23,281 (295)

Inhibition of asexual reproduction in planaria

open access: yes, 1969
Asexual reproduction in the decapitated planaria, Dugesia dorotocephala, is inhibited by an extract of homogenized heads of the same or closely-related species.
Leavitt, Lewis Hafen
core  

Behavioral, Ecological, and Morphological Data Suggest a Close Relationship Between the Ant Colobopsis truncata and the Gall Wasp Aphelonyx cerricola

open access: yesIntegrative Zoology, EarlyView.
Aphelonyx cerricola and the different stages that make this gall colonizable by ants. ABSTRACT Wasps of the family Cynipidae are known to induce galls of a species‐specific morphology, which during senescence provide a refuge for secondary insect fauna, especially ants.
Daniele Giannetti   +5 more
wiley   +1 more source

Genomic Content in Avian Haemosporidian Parasites Suggests Co‐Regulation of Apicoplast and Mitochondrial Nucleoids

open access: yesIntegrative Zoology, EarlyView.
Apicoplast genomic content and mitochondrial genomic content were found to be strongly correlated (rho = 0.93) for infections going from low to high. Apicoplast and mitochondrial genomic content were deemed as more predictive factors of parasitemia for different infection intensities.
Gaia Porporato   +4 more
wiley   +1 more source

A Comparative Analysis of Darwinian Asexual and Sexual Reproduction in Evolutionary Robotics [PDF]

open access: yes, 2023
Evolutionary Robotics systems draw inspiration from natural evolution to solve the problem of robot design. A key moment in the evolutionary process is reproduction, when the genotype of one or more parents is inherited by their offspring.
Longhi, Carlo
core  

A fungal perspective: Ecological reinterpretation of short‐term temporal variation in airborne eDNA

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Airborne environmental DNA (eDNA) is a powerful tool for assessing biodiversity, but its temporal dynamics and applicability to fungi remain poorly understood. Here we discuss how short‐term airborne eDNA variation should be interpreted for fungal communities.
Albert Morera   +3 more
wiley   +1 more source

Swimming ability and flagellar motility of sperm packets of the volvocine green alga Pleodorina starrii.

open access: yesPLoS ONE
Eukaryotic flagella collectively form metachronal waves that facilitate the ability to cause flow or swim. Among such flagellated and planktonic swimmers, large volvocine genera such as Eudorina, Pleodorina and Volvox form bundles of small male gametes ...
Azusa Kage   +5 more
doaj   +1 more source

Genetic variation and asexual reproduction in the facultatively parthenogenetic cockroach nauphoeta cinerea: Implications for the evolution of sex

open access: yes, 2001
Asexual reproduction could offer up to a two-fold fitness advantage over sexual reproduction, yet higher organisms usually reproduce sexually. Even in facultatively parthenogenetic species, where both sexual and asexual reproduction is sometimes possible,
Moore, Allen   +3 more
core   +1 more source

Transgenerational acclimation influences asexual reproduction in Aurelia aurita jellyfish polyps in response to temperature.: Transgenerational plasticity in polyp reproduction

open access: yes, 2020
Climate change events and anthropogenic activities (e.g. translocation of nonindigenous species) have been proposed to account for the rise of jellyfish blooms in coastal environments.
Lucas, Catherine   +2 more
core   +1 more source

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

Decrease in beneficial bacteria and increase in harmful bacteria in Gastrodia seedlings and their surrounding soil are mainly responsible for degradation of Gastrodia asexual propagation

open access: yesFrontiers in Plant Science
IntroductionAsexual reproduction of Gastrodia elata Bl. f. glauca S. chow (GeB) produces degeneration with increasing number of GeB. Therefore, we analyzed the microorganisms of GeB seedlings and surrounding soil by Illumina Miseq high-throughput ...
Xi Wang   +5 more
doaj   +1 more source

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