Results 11 to 20 of about 23,281 (295)

Population dynamics with a mixed type of sexual and asexual reproduction in a fluctuating environment [PDF]

open access: yesBMC Evolutionary Biology, 2012
Background Carassius gibelio, a cyprinid fish from Eurasia, has the ability to reproduce both sexually and asexually. This fish is also known as an invasive species which colonized almost all continental Europe, most likely originating from Asia and ...
Barbuti Roberto   +5 more
doaj   +2 more sources

Sexual versus Asexual Reproduction: Distinct Outcomes in Relative Abundance of Parthenogenetic Mealybugs following Recent Colonization.

open access: yesPLoS ONE, 2016
Asexual reproduction, including parthenogenesis in which embryos develop within a female without fertilization, is assumed to confer advantages over sexual reproduction, which includes a "cost of males." Sexual reproduction largely predominates in ...
Jun Tabata   +3 more
doaj   +2 more sources

Asexual reproduction strategies in the moon jellyfish Aurelia (Cnidaria: Scyphozoa) [PDF]

open access: yesFrontiers in Ecology and Evolution, 2023
The genus Aurelia is one of the major contributors to jellyfish blooms in coastal waters, possibly due to its adaptive reproduction strategies. Different Aurelia lineages have adapted their reproduction modes to varying environmental conditions in their ...
Fanghan Wang   +12 more
doaj   +3 more sources

Asexual reproduction reduces transposable element load in experimental yeast populations

open access: yeseLife, 2019
Theory predicts that sexual reproduction can either facilitate or restrain transposable element (TE) accumulation by providing TEs with a means of spreading to all individuals in a population, versus facilitating TE load reduction via purifying selection.
Jens Bast   +4 more
doaj   +2 more sources

Hybridization promotes asexual reproduction in Caenorhabditis nematodes.

open access: yesPLoS Genetics, 2019
Although most unicellular organisms reproduce asexually, most multicellular eukaryotes are obligately sexual. This implies that there are strong barriers that prevent the origin or maintenance of asexuality arising from an obligately sexual ancestor.
Piero Lamelza   +8 more
doaj   +2 more sources

Density, parasitism, and sexual reproduction are strongly correlated in lake Daphnia populations

open access: yesEcology and Evolution, 2021
Many organisms can reproduce both asexually and sexually. For cyclical parthenogens, periods of asexual reproduction are punctuated by bouts of sexual reproduction, and the shift from asexual to sexual reproduction has large impacts on fitness and ...
Camden D. Gowler   +4 more
doaj   +1 more source

Interploidy gene flow involving the sexual-asexual cycle facilitates the diversification of gynogenetic triploid Carassius fish

open access: yesScientific Reports, 2021
Asexual vertebrates are rare and at risk of extinction due to their restricted adaptability through the loss of genetic recombination. We explore the mechanisms behind the generation and maintenance of genetic diversity in triploid asexual (gynogenetic ...
Tappei Mishina   +11 more
doaj   +1 more source

Difference in reproductive strategies of two scleractinian corals (branching vs massive) along the west coast of Mexico

open access: yesCiencias Marinas, 2013
This study addressed the relative contribution of sexual and asexual reproduction to the genetic composition of populations of two scleractinian corals, Pocillopora damicornis and Porites panamensis, off the west coast of mainland Mexico.
Héctor Efraín Chávez-Romo   +5 more
doaj   +1 more source

Detection of Gene Flow from Sexual to Asexual Lineages in Thrips tabaci (Thysanoptera: Thripidae). [PDF]

open access: yesPLoS ONE, 2015
Populations of Thrips tabaci are known to have two sympatric but genetically isolated reproductive modes, arrhenotoky (sexual reproduction) and thelytoky (asexual reproduction).
Xiao-Wei Li   +3 more
doaj   +1 more source

Research on the Regulatory Mechanism of Algae Reproduction under Abiotic Stress Conditions [PDF]

open access: yes, 2022
The book is reprint version of the Special Issue entitled Research on the Regulatory Mechanisms of Algae Reproduction under Abiotic Stress Conditions, highlighting novel findings that significantly contribute to the development of our understanding of ...

core   +1 more source

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