Results 41 to 50 of about 6,524 (176)

Geographic parthenogenesis and plant-enemy interactions in the common dandelion

open access: yesBMC Evolutionary Biology, 2013
Background Many species with sexual and asexual variants show a pattern of geographic parthenogenesis where asexuals have broader and higher-latitude distribution than sexuals.
Verhoeven Koen JF, Biere Arjen
doaj   +1 more source

Variability of Reproduction Pathways in the Central-European Populations of Hawthorns with Emphasis on Triploids

open access: yesPlants, 2022
The role of apomeiosis, parthenogenesis, and pseudogamy in the asexual reproduction of some plant groups has not been fully elucidated in relation to species diversification.
Vladislav Kolarčik   +5 more
doaj   +1 more source

“Jack‐of‐all‐trades” is parthenogenetic

open access: yesEcology and Evolution, 2022
Sex is evolutionarily more costly than parthenogenesis, evolutionary ecologists therefore wonder why sex is much more frequent than parthenogenesis in the majority of animal lineages. Intriguingly, parthenogenetic individuals and species are as common as
Mark Maraun   +8 more
doaj   +1 more source

Parthenogenesis in a captive Asian water dragon (Physignathus cocincinus) identified with novel microsatellites.

open access: yesPLoS ONE, 2019
Reptiles show varying degrees of facultative parthenogenesis. Here we use genetic methods to determine that an isolated, captive female Asian water dragon produced at least nine offspring via parthenogenesis. We identified microsatellites for the species
Kyle L Miller   +8 more
doaj   +1 more source

Opportunities and Challenges in Doubled Haploids and Haploid Inducer-Mediated Genome-Editing Systems in Cucurbits

open access: yesAgronomy, 2020
Doubled haploids have played a major role in cucurbit breeding for the past four decades. In situ parthenogenesis via irradiated pollen is the preferred technique to obtain haploid plantlets whose chromosomes are then doubled in Cucurbitaceae, such as ...
Isidre Hooghvorst, Salvador Nogués
doaj   +1 more source

Parthenogenesis. [PDF]

open access: yesFolklore, 1918
n ...
openaire   +1 more source

Plant and insect functional traits influence herbivore performance under climate change

open access: yesOikos, EarlyView.
Climate change is expected to disrupt many trophic interactions, including those between insect herbivores and their host plants, which could have detrimental effects at the ecosystem level. However, the response of insect herbivory to climate change can vary widely across species, and an understanding of the mechanisms underlying this variation is ...
Jessica M. Guezen, Madhur Anand
wiley   +1 more source

Rhizobacteria regulate colonising Sitobion avenae aphid populations through induced host resistance and alter plant volatiles promoting early parasitoid recruitment on barley (Hordeum vulgare)

open access: yesPest Management Science, EarlyView.
Rhizobacterial inoculation of barley reduced Sitobion avenae populations by inducing plant resistance and modifying volatiles that attracted parasitoid wasps earlier, enhancing both bottom‐up and top‐down pest control. Abstract BACKGROUND Soil rhizobacteria can enhance crop resistance to insect herbivores and influence higher trophic interactions ...
Megan E Parker   +2 more
wiley   +1 more source

Neurotrophin-4 promotes the specification of trophectoderm lineage after parthenogenetic activation and enhances porcine early embryonic development

open access: yesFrontiers in Cell and Developmental Biology, 2023
Neurotrophin-4 (NT-4), a neurotrophic factor, appears to affect early embryonic development because it is secreted not only by neurons but also by oviductal and uterine epithelial cells. However, no studies have characterized the effects of NT-4 on early
Mirae Kim   +15 more
doaj   +1 more source

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